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How to inspect request and response headers on Safari?

January 03, 2019  1 minute read  

Learn how to inspect request and response headers on Safari.

1. Enable Developer Mode

On Safari, first, you have to enable Develop Menu.

  • Click Safari button on top left corner.
  • Open up Safari preferences.
  • Select Advanced tab.
  • Check ‘Show Develop menu in menu bar’.

Show Develop Menu in Safari menu bar

2. Open up Safari Web Inspector

You can open by Safari Web Inspector by selecting Develop menu and click Show Web Inspector button.

Open Safari Web Inspector

3. Open up Network tab

With web inspector opened,

  • Navigate to Network tab and you can see the files requested over network.
  • Select one of the requested items and go to its Headers item.
  • You can see the following image showing Summary, Request and Response sections.

Open Safari Web Inspector Network tab

4. Refresh the page

  • Refresh the page by using the refresh button next to the address bar.
  • Network Request and Response Headers will be listed.

Safari Network Request Headers

Mac Shorcuts / Hotkeys

You would be more productive if you know the shorcuts to the above steps. When you are familiar with the shortcut keys, you can speed up and use your time on developing and solving problems.

Shortcuts or hotkeys to inspect network requests and responses on Safari:

With this, you can inspect your network requests and responses on Safari.

safari web inspector network requests

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Web Inspector Reference Local Overrides

Creating local overrides, configuring local overrides, exporting local overrides.

As web development workflows have gotten more complicated, it’s become increasingly difficult to make quick changes to a resource and upload it to a server to test.

Some parts of a page’s content can be modified live using Web Inspector, such as CSS or any JavaScript values, but these changes are not persistent across page reloads/navigations.

Often, however, the desired change is a modification to the control flow of a loaded script or data included with network activity.

In these cases, Web Inspector is in a perfect position to intercept the network activity and replace/block it with a Local Override , allowing for quick local testing without having to modify anything on a server.

When Web Inspector is open, network requests made by the inspected page that match the URL of a Local Override will instead use data from that Local Override in Web Inspector rather than from the network or memory/disk cache.

Local Overrides can be created in a few ways:

  • Right-clicking on links or tree items that correspond to a resource loaded from the network and selecting Create Request Local override , Create Response Local Override , or Block Request URL .
  • Dragging and dropping a file over any non-text-based resource loaded from the network. This will create a Response Local Override with the MIME type and contents of the dropped file, but with the response status, and response headers of the selected resource.
  • Selecting Local Override… when creating a resource . This will create an “empty” Local Override that needs to be configured before it will have any effect.

When a Local Override is created from a resource, the Local Override will copy relevant data from resource depending on the type of the Local Override . For Request Local Overrides , the resource’s URL, method, and request headers are copied. For Response Local Overrides , the resource’s URL, MIME type, status code, status text, and response headers are copied.

Once there is at least one Local Override in Web Inspector, the Local Overrides section will become visible in the Navigation Sidebar in the Sources Tab . All Local Overrides , as well as the Inspector Bootstrap Script , can be found here.

Local Overrides are persistent across Web Inspector sessions, but keep in mind that Local Overrides don’t have an effect unless Web Inspector is open, and only apply the next time a resource is loaded that matches it’s configured URL.

Modifying the content of a Local Override is as simple as selecting it in the Navigation Sidebar and interacting with the controls in the Main Content Area . Response Local Overrides show the contents of the network response. Request Local Overrides show the request data. Blocking Local Overrides show a dropdown to choose the kind of error to block matching network requests.

For non-text-based resources, dragging and dropping a file over the content view will update the content and MIME type of the Response Local Override using the dropped file’s contents and inferred MIME type.

If the desired changes are not related to the content, however, right-clicking on any Local Override tree item and selecting Edit Local Override… will show a popover with inputs for modifying data for that Local Override .

Checking the Regular Expression checkbox will instead treat the URL as a regular expression, allowing a single Local Override to match multiple resources. This can be especially useful for matching against URLs with query parameters.

If no Headers are provided, the original headers will be used.

Request Local Overrides with a regular expression URL can use capture groups (e.g. $1 ) inside the Redirect URL.

Response Local Overrides can be configured to Skip Network , which will cause Web Inspector to immediately respond with that Response Local Override ‘s data when intercepting a matching network request, thereby preventing that network request from actually being sent.

Exporting the contents of a Local Override works just like any other resource, in that pressing ⌘   S when viewing the contents of a Local Override or selecting Save File after right-clicking on any Local Override tree item will show a save file dialog.

Identifying Overridden Resources

Whenever a resource is overriden by a Local Override , it’s icon is inverted throughout Web Inspector.

When looking at the content view for that resource, a banner is shown at the top with a button to Reveal the corresponding Local Override .

safari web inspector network requests

Written January 14, 2020 by Devin Rousso and Joseph Pecoraro

Last updated June 2, 2022 by Devin Rousso

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The Safari network tab acts as a valuable developer tool designed to help web architects, designers, and people eager to uncover the complexities of loading a web web page and interacting with servers It’s a thing that is required in the Safari Developer Tools Suite, a number of applications in order to facilitate debugging and enhancing net pages for

In the Network Tab, the Internet page benefits from a function that monitors local activity and is thoroughly analyzed for a set period of time. This function provides useful insights on many things, such as retrieved content, the time needed to complete each useful input, the overall performance of the web page and this data store that is critical to tracking optimal website performance, finding capacity issues and enjoying passive customers.

Overview of Network Tab:

The Network tab in Safari serves the primary purpose of managing network requests from the web browser. While Safari does not categorize its Network Tabs into specific categories, the information it provides can be broken down into several main sections:

  • Requests: In this section, you will find a detailed list of all network requests initiated by the network. Each request is presented as a row in the tab, providing important information such as the request method (e.g., GET, POST), URL of the object, status code, and size
  • Period: Time lets you carefully allocate the time needed for each network request to complete. This partitioning includes various factors such as DNS resolution time, connection establishment, and duration of request and response. These moments prove invaluable in identifying complications in packaging.
  • Title: Headers as shown in this section specify the request and response headers associated with each network request. This feature is especially handy when troubleshooting headers, such as those with Cross-Origin Resource Sharing (CORS).
  • Example View: The Preview tab allows users to directly browse the content of specific objects, including HTML, CSS, JavaScript, or JSON, right in the Network tab. This functionality proves to be very helpful in managing the content of the response quickly.
  • Founded by: The initiator column provides insight into what triggers a particular web request. This trigger can be a user action, such as clicking on a link or button, or from the execution of the script that initiated the request.

The Network tab in Safari offers a whole lot of precious functions for internet builders and architects. Let’s take a more in-depth look at a number of its key roles

  • Real-time monitoring: The Network tab gives an in-flight view of community hobbies. As the net page loads, it presents the requests which have been submitted and the corresponding responses. This characteristic helps loads in identifying issues and optimizing performance in real-time.
  • Filtering and Sorting: This tool lets you customise and configure network requests primarily based on criteria inclusive of request type, reputation code, domain, and greater. This function simplifies the process of figuring out precise requests that require your interest.
  • Ask questions about: For each community request, you’ll have get admission to to special information, along with request reaction headers, timeouts, and reaction content material. This stage of detail is essential for trouble solving and product improvement.
  • Initiator Series: The Initiator Chain function enables you recognize the foundation reason of a selected community request. It is particularly useful to know where sudden or undesirable requests have happened.
  • Throttle and Performance Analysis: Safari’s Network tab allows you to simulate exclusive community situations to see how your network performs below distinctive conditions, consisting of gradual 3G or speedy 4G, an vital ability so as to flex to one-of-a-kind network connections They’ve been watching them meet
  • HAR exports: You have the capability to export community facts in HAR (HTTP Archive) format, that’s the default format for writing HTTP offerings. This function proves beneficial for sharing net records with friends or other analytics using external tools.

The Safari Network tab gives many treasured benefits for web developers and architects:

  • Increased productiveness: One of its fundamental benefits is its potential to reveal network requests and uptime. This characteristic lets in you to become aware of bottlenecks and first-class song resource loads, in the long run ensuing in faster web page load instances and an advanced person experience
  • Debugging functions: The Network tab goes beyond page-degree facts, supplying specified insights into community requests, header chains, and trigger chains. This depth makes it an vital tool for troubleshooting community connectivity, inputs, and server connectivity.
  • Troubleshooting CORS Problems: Where networks request assets from distinctive assets, CORS-associated demanding situations may get up. Network Tab involves the rescue through enabling you to discover and remedy those problems by means of scrutinizing the request reaction headers.
  • Improves the consumer experience: After all, optimizing the community without delay affects the overall person revel in. By leveraging the power of the Network Tab, you may ensure that your web pages load faster and less complicated, reducing bounce prices and growing consumer engagement

When to Use?

The Network Tab in Safari acts as a multitasking tool with many applications. Here are guidelines on when and how to use them effectively:

Correct page loading:

  • Use the Network Tab to test the loading of your websites.
  • Identify any slow drivers, redundant files, or unnecessary requests.
  • Make necessary optimizations to enhance the user experience and to ensure fast and smooth loading time.

Troubleshooting network issues:

  • When your web browser encounters network-related errors such as failed requests or unexpected actions, the Network tab becomes your troubleshooting partner.
  • Analyze the request header, response status, and timer to identify and resolve the underlying problem.

Testing on networks:

  • Use throttling features to simulate network conditions.
  • This allows you to measure the performance of your web page under different network speeds, assuring that it performs well for users with different levels of connectivity.

CORS information search:

  • Where your network starts making requests for a particular zone and runs into CORS (Cross-Origin Resource Sharing) problems, go to the Network Tab.
  • Here, you can monitor request and response headers, gaining insights to help understand and resolve cross-origin issues.

Third party content management:

  • If your web application relies on external resources such as APIs or external scripts, carefully monitor their loading behavior using the Network tab.
  • Ensure that these items load properly and do not cause performance issues that could hamper the overall performance of your website.

Steps to use Network Tab in Safari:

Here are the steps to use the Network Tab in Safari with images and pictures:

Step 1: Open Safari Developer Tools

First, go to Safari Developer Tools on your Mac to start things off. Here’s how you can do it:

  • Launch Safari on your Mac.
  • Go to the Safari menu, which can be found in the top left corner of your screen.
  • Select “Preferences”/”Settings…” from the drop down menu.
  • Go to the “Advanced” tab in the Preferences window.
  • Look for the “Show Develop menu in the menu bar” option and make sure it is enabled. This is necessary to get developer tools.

s1

Step 2: Open the website you want to manage

Now, it’s time to determine which network you want to monitor using the Network Tab. Make sure the web page loads completely before proceeding to the next step.

Step 3: Go to the Network Tab

Let’s go to the Network Tab. Follow these steps:

  • Click on the “Develop” menu in the Safari menu bar at the top of your screen.
  • A dropdown menu will appear. Select “Connect Web Inspector”/”Show Web Inspector” from this menu.

s3

Step 4: Go to the Network Tab

Once you’re done with the Web Inspector, you’re almost there. Here’s what happens next:

  • In the Web Inspector screen that appears, note the navigation tabs at the top.
  • Click on the one labeled “Network” to go to the Network Tab.

s4

Step 5: Monitor Network Activity

Now that you are in the Network Tab, you will see network requests and other useful information. This is where you can start viewing web activity while the web browser is running.

s5

Step 6: Analyze Requests and Resources

This is where the real magic happens. You can explore network requests in more detail:

  • Click on individual web requests to see the subject, time, and content previews of the requests and responses.
  • Use filtering and sorting options to focus on specific requests or business issues.

s6

Example Showing Usage

Let’s use a actual-international scenario to illustrate a way to efficiently use Safari’s Network tab. Imagine you are an internet developer tasked with enhancing the capability of a internet site. Large photo documents are thought to be responsible for slower web page loads. Here is how you could use the Network Tab to diagnose and remedy this trouble:

Step 1: Get Safari Developer Tools

As noted earlier, visit Safari Developer Tools and launch the Network Tab.

Step 2: Load the Website

Go to the specific website you need to search. For this demonstration, we can use the GFG internet site.

Step 3: Monitor Network Requests

Notice how the Network Tab populates network requests as the website masses. These requests will consist of diverse elements consisting of HTML, CSS, JavaScript, and pics.

Step 4: Determine photograph file sizes

Use the Network Tab to manage requests by way of length, that specialize in those large picture files that make contributions to sluggish page load times

Step 5: Optimize Image Loading

Once you have got identified these big image documents, paintings on growing their weight. You can do that by means of clicking on pictures, using responsive graphics strategies, or applying lazy-weighting to the photographs at the lowest of the preview location of ​​the internet page

Step 6: Confirm the performance development

Reload the web browser and take a look at the Network Tab once more. You ought to observe a lower in photograph loading time and an overall development in internet browser loading velocity.

In this situation, Safari’s Network tab played a key role in solving the overall performance challenges related to picture loading. This empowered you to enforce features that considerably advanced the overall performance of the website.

In precis, Safari’s Network tab stands as a versatile and powerful device, presenting precious insights into web web page loading and community connectivity. Whether your goal is to enhance internet site overall performance, edit network problems, or look for CORS data, the community tab is an important partner for web developers and architects Through its potential to implement the steps mentioned on this manual in addition you may assure a web web page that performs well and offers an extraordinary consumer experience.

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What Is Web Inspector In Safari

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Introduction

Web Inspector is a powerful tool that allows developers to delve into the inner workings of websites and web applications. It provides a comprehensive set of features for inspecting, debugging, and optimizing web content, making it an indispensable asset for web developers and designers. Whether you're a seasoned professional or just starting out in web development, understanding how to leverage Web Inspector can significantly enhance your workflow and productivity.

With Web Inspector, you can peek behind the curtain of a webpage to analyze its structure, styles, and scripts. This tool empowers you to identify and rectify issues, optimize performance, and gain valuable insights into the behavior of web elements. It's like having x-ray vision for the web, allowing you to see the underlying code, network activity, and performance metrics.

In this article, we'll explore the ins and outs of Web Inspector in Safari, shedding light on its features, functionalities, and practical applications. Whether you're a web development enthusiast, a curious explorer, or a seasoned professional seeking to expand your knowledge, this guide will equip you with the essential know-how to harness the full potential of Web Inspector. So, let's embark on this journey to unravel the mysteries of web development and discover the wonders of Web Inspector in Safari.

Overview of Web Inspector

Web Inspector is a robust and multifaceted tool integrated into the Safari web browser , designed to facilitate the inspection, debugging, and optimization of web content. It provides a comprehensive suite of features that empower developers to dissect and analyze the various components of a webpage, including its structure, styles, and scripts. With Web Inspector, users can gain deep insights into the inner workings of web elements, enabling them to identify issues, enhance performance, and refine the user experience.

At its core, Web Inspector serves as a window into the underlying code and resources that constitute a webpage. It offers a detailed view of the Document Object Model (DOM), allowing developers to visualize the hierarchical structure of HTML elements and their relationships. This feature is invaluable for understanding the composition of a webpage and diagnosing layout issues, as it provides a real-time representation of how the browser interprets the HTML document.

Furthermore, Web Inspector provides comprehensive support for inspecting and manipulating Cascading Style Sheets (CSS). Developers can effortlessly examine the styles applied to individual elements, diagnose layout inconsistencies, and experiment with live style changes to observe their immediate impact on the webpage's appearance. This capability streamlines the process of fine-tuning the visual presentation of web content, fostering a more efficient and iterative approach to front-end development.

In addition to its prowess in dissecting the structure and styles of webpages, Web Inspector offers robust debugging capabilities for JavaScript and other web technologies. Developers can set breakpoints, inspect variables, and trace the execution flow of scripts, empowering them to identify and rectify logic errors, performance bottlenecks, and unexpected behaviors within their web applications.

Moreover, Web Inspector provides comprehensive network analysis tools, allowing developers to monitor network requests, examine response data, and diagnose performance issues related to resource loading. This feature enables users to optimize the loading times of web content, identify potential bottlenecks, and ensure a seamless and responsive user experience.

In essence, Web Inspector serves as a Swiss army knife for web developers, offering a rich set of tools and functionalities to streamline the development and optimization of web content. Its comprehensive suite of features empowers developers to gain deep insights, diagnose issues, and optimize the performance of web applications, making it an indispensable companion in the realm of web development.

How to Access Web Inspector in Safari

Accessing Web Inspector in Safari is a straightforward process that grants developers direct access to the inner workings of web content. Whether you're keen on inspecting the structure of a webpage, analyzing its styles, debugging JavaScript, or monitoring network activity, Web Inspector provides a comprehensive toolkit for these tasks. To access Web Inspector in Safari, follow these simple steps:

Open Safari Browser : Launch the Safari web browser on your Mac or iOS device.

Navigate to the Webpage : Visit the webpage that you intend to inspect and analyze. This could be a live website, a locally hosted web application, or any web content accessible through Safari.

Access the Develop Menu : In the Safari menu bar, navigate to "Develop." If the Develop menu is not visible, you can enable it by going to Safari Preferences > Advanced and checking the "Show Develop menu in menu bar" option.

Select "Show Web Inspector" : Once the Develop menu is accessible, hover over the "Develop" option to reveal a dropdown menu. From the dropdown menu, select "Show Web Inspector." Alternatively, you can use the keyboard shortcut "Option + Command + I" to open Web Inspector swiftly.

Explore Web Inspector : Upon selecting "Show Web Inspector," the Web Inspector panel will appear, providing a comprehensive view of the webpage's structure, styles, scripts, and network activity. You can navigate through the various tabs and panels within Web Inspector to inspect and analyze different aspects of the webpage.

By following these steps, you can seamlessly access Web Inspector in Safari and unlock its powerful capabilities for web development and debugging. Whether you're a seasoned developer or a curious enthusiast, delving into the inner workings of web content through Web Inspector can provide valuable insights and facilitate the optimization of web applications and websites.

In summary, accessing Web Inspector in Safari is a fundamental step in leveraging its robust features for web development, debugging, and optimization. By mastering the art of accessing and utilizing Web Inspector, developers can gain a deeper understanding of web content and enhance their ability to create compelling and performant web experiences.

Features of Web Inspector

Web Inspector in Safari boasts a rich array of features that empower developers to dissect, analyze, and optimize web content with precision and efficiency. From inspecting the structure and styles of web elements to debugging JavaScript and monitoring network activity, Web Inspector offers a comprehensive toolkit for enhancing the development and performance of web applications and websites.

Document Object Model (DOM) Inspection

Web Inspector provides a detailed view of the Document Object Model (DOM), allowing developers to visualize the hierarchical structure of HTML elements and their relationships. This feature enables users to inspect, modify, and understand the composition of a webpage in real time, facilitating the diagnosis of layout issues and the manipulation of web elements with ease.

Cascading Style Sheets (CSS) Analysis

With Web Inspector, developers can delve into the styles applied to individual elements, diagnose layout inconsistencies, and experiment with live style changes to observe their immediate impact on the webpage's appearance. This capability streamlines the process of fine-tuning the visual presentation of web content, fostering a more efficient and iterative approach to front-end development.

JavaScript Debugging

Web Inspector offers robust debugging capabilities for JavaScript and other web technologies. Developers can set breakpoints, inspect variables, and trace the execution flow of scripts, empowering them to identify and rectify logic errors, performance bottlenecks, and unexpected behaviors within their web applications.

Network Analysis

Web Inspector provides comprehensive network analysis tools, allowing developers to monitor network requests, examine response data, and diagnose performance issues related to resource loading. This feature enables users to optimize the loading times of web content, identify potential bottlenecks, and ensure a seamless and responsive user experience.

Resource Inspection

Developers can inspect and analyze various resources loaded by a webpage, including images, scripts, stylesheets, and other assets. This feature provides valuable insights into resource loading times, sizes, and dependencies, enabling developers to optimize the performance and efficiency of web content.

Timeline Recording

Web Inspector offers a timeline recording feature that allows developers to capture and analyze the timeline of events, including JavaScript execution, rendering performance, and network activity. This capability is instrumental in identifying performance bottlenecks and optimizing the responsiveness of web applications.

Memory and Performance Analysis

Developers can leverage Web Inspector to analyze memory usage, performance profiles, and runtime behaviors of web applications. This feature facilitates the identification of memory leaks, performance optimizations, and overall improvements in the efficiency of web content.

In essence, the features of Web Inspector in Safari collectively form a comprehensive toolkit for web development, debugging, and optimization. By harnessing these capabilities, developers can gain deep insights, diagnose issues, and optimize the performance of web applications, making Web Inspector an indispensable asset in the realm of web development.

Using Web Inspector for Web Development

Web Inspector serves as an invaluable companion for web developers, offering a robust set of tools and functionalities to streamline the development, debugging, and optimization of web content. By leveraging the capabilities of Web Inspector, developers can gain deep insights, diagnose issues, and enhance the performance and user experience of web applications and websites.

Real-time Inspection and Debugging

One of the primary benefits of using Web Inspector for web development is the ability to inspect and manipulate web elements in real time. Developers can navigate through the Document Object Model (DOM) to understand the structure of a webpage, modify elements, and observe the immediate impact on the layout and presentation. This real-time inspection capability facilitates the diagnosis and resolution of layout issues, ensuring a seamless and visually appealing user experience.

Furthermore, Web Inspector empowers developers to debug JavaScript and other web technologies with precision. By setting breakpoints, inspecting variables, and tracing the execution flow of scripts, developers can identify and rectify logic errors, performance bottlenecks, and unexpected behaviors within their web applications. This debugging prowess is instrumental in ensuring the reliability and functionality of web content.

Optimizing Styles and Layout

Web Inspector provides comprehensive support for inspecting and manipulating Cascading Style Sheets (CSS), enabling developers to fine-tune the visual presentation of web content. By analyzing the styles applied to individual elements, diagnosing layout inconsistencies, and experimenting with live style changes, developers can refine the aesthetic appeal and responsiveness of web applications. This iterative approach to optimizing styles and layout fosters a more efficient and visually compelling web development process.

Performance Analysis and Optimization

Developers can harness the network analysis tools within Web Inspector to monitor network requests, examine response data, and diagnose performance issues related to resource loading. By optimizing the loading times of web content, identifying potential bottlenecks, and ensuring a seamless user experience, developers can elevate the performance and responsiveness of web applications. Additionally, the timeline recording and memory analysis features enable developers to identify performance bottlenecks, memory leaks, and runtime behaviors, facilitating the optimization of web applications for enhanced efficiency.

In essence, using Web Inspector for web development empowers developers to gain deep insights, diagnose issues, and optimize the performance and user experience of web applications and websites. By seamlessly integrating Web Inspector into the development workflow, developers can leverage its rich set of tools and functionalities to create compelling, performant, and visually appealing web experiences.

In conclusion, Web Inspector in Safari stands as a formidable ally for web developers, offering a comprehensive suite of features and functionalities to dissect, analyze, and optimize web content. From its prowess in inspecting the Document Object Model (DOM) to its robust debugging capabilities for JavaScript and network analysis tools, Web Inspector equips developers with the tools they need to elevate the quality and performance of web applications and websites.

By providing real-time insights into the structure, styles, and scripts of web elements, Web Inspector empowers developers to diagnose layout issues, optimize styles, and ensure a visually compelling user experience. The ability to manipulate and experiment with web elements in real time streamlines the development process, fostering an iterative approach to refining the presentation and functionality of web content.

Moreover, the debugging capabilities of Web Inspector enable developers to identify and rectify logic errors, performance bottlenecks, and unexpected behaviors within their web applications. This ensures the reliability and functionality of web content, contributing to a seamless and intuitive user experience.

Additionally, the network analysis tools and timeline recording features within Web Inspector facilitate the optimization of resource loading times, the identification of performance bottlenecks, and the enhancement of the responsiveness of web applications. By monitoring network requests, examining response data, and capturing the timeline of events, developers can fine-tune the performance and efficiency of web content, ensuring a seamless user experience across various devices and network conditions.

In essence, Web Inspector serves as a catalyst for innovation and excellence in web development, providing developers with the insights and tools they need to create compelling, performant, and visually appealing web experiences. Whether you're delving into the intricacies of web elements, debugging JavaScript, or optimizing network performance, Web Inspector empowers you to unlock the full potential of web content.

As the digital landscape continues to evolve, Web Inspector remains a steadfast companion for developers, offering a dynamic toolkit to navigate the complexities of web development and deliver exceptional user experiences. Embracing the capabilities of Web Inspector is not just a choice; it's a strategic advantage in the pursuit of crafting immersive and impactful web experiences for users around the globe.

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Safari Web Inspector Guide

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Retired Document

Important: This document no longer represents the most current version of Safari developer tools. Links to downloads and other resources may no longer be valid. For new documentation on Safari Web Inspector, please visit Safari Developer Help .

About Safari Web Inspector

Web Inspector is an open source web development tool built into Safari that makes it easy to prototype, optimize, and debug your web content on iOS and OS X.

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Read this guide to get started using Web Inspector.

At a Glance

This document is organized by areas of the Web Inspector interface.

Get Started

Learn how to enable and customize the appearance of Web Inspector.

Inspect the DOM and Resources

At the heart of Web Inspector is the ability to inspect the Document Object Model (DOM). Web Inspector shows you the structure of your DOM as perceived by Safari’s rendering engine, WebKit. But the DOM isn’t all you can inspect. External resources and locally stored data—such as scripts, stylesheets, and offline storage—can be inspected, providing insight to the data available to your web content.

Measure and Improve Page Performance

Web Inspector provides a suite of tools you can use to quantify the speed of your webpages. You can monitor network requests as they download, observe page layout calculations performed by the WebKit rendering engine, and profile the efficiency of your JavaScript functions and CSS selectors.

Debug JavaScript

Turn to Web Inspector when your front-end logic goes awry. Web Inspector offers a debugging environment that lets you pause script execution and observe the values of your variables as they are defined.

Interact with the Console

Lift up the hood of your webpages and interact directly with your web content in the console.

How to Use This Document

When reading this document, follow along with Web Inspector open in Safari. It is recommended to actively use Web Inspector on this page while you read about its features for a hands-on learning experience.

WWDC 2013: Getting to Know Web Inspector provides a walkthrough of the Web Inspector UI.

WWDC 2013: Getting the Most Out of Web Inspector describes advanced concepts of harnessing the power of Web Inspector to your advantage.

Safari Extensions Development Guide delivers step-by-step directions for creating Safari extensions using Extension Builder.

Safari Extensions Reference lists the JavaScript classes, methods, and properties you can access with Safari extensions.

Safari Web Content Guide offers guidance for developing web content for iOS.

Copyright © 2018 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2018-02-07

IMAGES

  1. Getting started with the Safari Web Inspector on iOS and Mac

    safari web inspector network requests

  2. How to Use Web Inspector to Debug Mobile Safari (iPhone or iPad

    safari web inspector network requests

  3. How to use Safari Web Inspector on Mac, iPad, and iPhone

    safari web inspector network requests

  4. How to Use Web Inspector to Debug Mobile Safari (iPhone or iPad

    safari web inspector network requests

  5. MacOS: Enable Web Inspector In Safari

    safari web inspector network requests

  6. How to inspect request and response headers on Safari?

    safari web inspector network requests

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COMMENTS

  1. How to inspect HTTP requests in Safari 8 or later

    Above it will be a few tabs. Select the Headers tab and take a look in the request part of the displayed data for some request info. For details on the request data, take a look under "Request Data". If applicable, there will be a small arrow there that you can press to see the full content of the request. Share.

  2. Web Inspector

    Network. See a detailed list of all network requests made to load every webpage resource, so you can quickly evaluate the response, status, timing, and more. Timelines. Understand all the activity that occurs on an open webpage, such as network requests, layout and rendering, JavaScript events, memory, and CPU impact.

  3. How to inspect request and response headers on Safari?

    You can open by Safari Web Inspector by selecting Develop menu and click Show Web Inspectorbutton. Please refer to the following image for the above listed steps. 3. Open up Network tab. With web inspector opened, Navigate to Network tab and you can see the files requested over network. Select one of the requested items and go to its Headers ...

  4. Inspecting Safari on macOS

    In Safari, there are two ways to begin inspecting a webpage. The first is via the Develop menu. With the webpage you wish to inspect frontmost in Safari, go to the Develop menu and choose Show Web Inspector (⌥⌘I). Web Inspector will then appear, and will be inspecting the webpage. The second was to show Web Inspector is to right click on ...

  5. Tools

    Apple has brought its expertise in development tools to the web. Safari includes Web Inspector, a powerful tool that makes it easy to modify, debug, and optimize websites for peak performance and compatibility on both platforms. ... See a detailed list of all network requests made to load every web page resource, so you can quickly evaluate the ...

  6. How To Use Inspect In Safari

    The Network tab within Safari's Inspector is a vital tool for analyzing the network activity of web pages, providing valuable insights into the loading and transmission of resources. Upon navigating to the Network tab, you gain access to a comprehensive log of network requests initiated by the webpage, along with detailed information about each ...

  7. How to Use Web Inspector to Debug Mobile Safari (iPhone or iPad)

    Enable Web Inspector on iOS : Open the Settings app on your iPhone or iPad. Scroll down and tap Safari. Scroll to the bottom of the page and tap Advanced. Tap the toggle next to Web Inspector to the On position. Enable Safari Developer Mode on Mac : Open Safari on your Mac. Click Safari in the top left corner of your Menu Bar.

  8. Guide to Safari Developer Tools

    The Safari Web Inspector can be used by clicking the Develop menu and selecting the "Show Web Inspector" option. ... The Network section of Safari Developer Tools lets you view the list of network requests that were issued to render the current page. The main table view of the Network tab shows the name of the connecting file, the domain ...

  9. Network Tab

    The Network Tab shows a table of every resource that has been requested since Web Inspector was opened. In addition to CSS, JS, and HTML resources, the table also includes API-driven network requests such as XHR, fetch, WebSocket, navigator.sendBeacon, etc. By default, each resource in the table is sorted based on when the resource request began.

  10. Local Overrides

    When Web Inspector is open, network requests made by the inspected page that match the URL of a Local Override will instead use data from that Local Override in Web Inspector rather than from the network or memory/disk ... Updated for Safari Technology Preview 146. Try it out for the latest Web Inspector features, including all of the above and ...

  11. How To Debug In Safari

    The Network tab in Safari's Web Inspector is a vital component for analyzing network activity and optimizing the performance of web applications. By providing detailed insights into network requests, responses, and loading times, the Network tab equips developers with the tools to diagnose potential bottlenecks, identify inefficiencies, and ...

  12. Safari 8 Not Showing Network Requests when using the web inspector

    Basically I am trying to monitor requests sent from my webapp. The usual method is Inpect Element -> Timelines -> Network Requests, where Safari gives me a graph and a list of all the requests made. Now I can see the graph, but I can't see the list of the requests made. Here's a screenshot illustrating where I'd like to see the requests:

  13. Timelines

    Reloading the webpage while Web Inspector is open. This shows all activity as it happens during page load. To stop recording, click the Stop Recording button. The content browser shows various details depending on the selected timeline. Network Requests. Figure 3-1 shows recorded network requests as blue horizontal bars.

  14. Network Tab in Apple Safari Browser

    Step 3: Go to the Network Tab. Let's go to the Network Tab. Follow these steps: Click on the "Develop" menu in the Safari menu bar at the top of your screen. A dropdown menu will appear. Select "Connect Web Inspector"/"Show Web Inspector" from this menu. Access the Network Tab.

  15. What Is Web Inspector In Safari

    Web Inspector is a robust and multifaceted tool integrated into the Safari web browser, designed to facilitate the inspection, debugging, and optimization of web content. It provides a comprehensive suite of features that empower developers to dissect and analyze the various components of a webpage, including its structure, styles, and scripts.

  16. Inspecting iOS and iPadOS

    Enabling inspecting your device from a connected Mac. Before you can connect your device to a Mac to inspect it, you must allow the device to be inspected. Open the Settings app. Go to Safari. Scroll down to Advanced. Enable the Web Inspector toggle. Now, connect the device to your Mac using a cable. In Safari, the device will appear in the ...

  17. web inspector

    Open Inspector, change to a new page while it is open, and look at Timeline > Network Requests, right click on the request you want, and pick Copy as cURL. Share. Improve this answer. Follow. answered Feb 15, 2017 at 0:50. Shelby Kira Marvell.

  18. About Safari Web Inspector

    WWDC 2013: Getting to Know Web Inspector provides a walkthrough of the Web Inspector UI. WWDC 2013: Getting the Most Out of Web Inspector describes advanced concepts of harnessing the power of Web Inspector to your advantage. Safari Extensions Development Guide delivers step-by-step directions for creating Safari extensions using Extension Builder.

  19. Debugging network requests with iOS Simulator, network request data is

    I am trying to debug the network requests for a hybrid/webview cordova based application in the ios simulator, actually see the network requests in the Safari Web Inspector. I am trying to use the Web Inspector within Safari to monitor the network requests to the server but all I see is the "timeline" graph, I don't see the actual URI requests.