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1. Devolo Network & Wireless Cards Driver Download
2. Devolo Network & Wireless Cards Driver Download Windows 7
3. Devolo Network & Wireless Cards Driver Download Windows 10

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This is a hands-on tutorial of some of the most commonly-used DevTools features relatedto inspecting network activity for a page.

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See Network Reference if you want to browse features instead.

[!VIDEO embed/e1gAyQuIFQo] -->

When to use the Network panel

In general, use the Network panel when you need to make sure that resources are being downloaded or uploaded as expected. The most common use cases for the Network panel are:

• Making sure that resources are actually being uploaded or downloaded at all.
• Inspecting the properties of an individual resource, such as the HTTP headers, content, size, and so on.

If you are looking for ways to improve page load performance, do not start with the Network tool. There are many types of load performance issues that are not related to network activity. Start with the Audits panel because it gives you targeted suggestions on how to improve your page. Navigate to Optimize Website Speed.

Open the Network panel

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To get the most out of this tutorial, open up the demo and try out the features on the demo page.

1. Open the Get Started Demo.

2. Open DevTools by pressing Control+Shift+J (Windows, Linux) orCommand+Option+J (macOS). The Console tool opens.

   You may prefer to dock DevTools to the bottom of your window.

3. Select the Network tab. The Network panel opens.

Right now the Network panel is empty. DevTools only logs network activity after you open it and no network activity has occurred since you opened DevTools.

Log network activity

To view the network activity that a page causes:

1. Reload the page. The Network panel logs all network activity in the Network Log.

   Each row of the Network Log represents a resource. By default the resources are listed chronologically. The top resource is usually the main HTML document. The bottom resource is whatever was requested last.

   Each column represents information about a resource. In the previous figure the default columns are displayed.

   • Status. The HTTP status code for response.
   • Type. The resource type.
   • Initiator. The cause of the resource request. Selecting a link in the Initiator column takes you to the source code that caused the request.
   • Time. The duration of the request.
   • Waterfall. A graphical representation of the different stages of the request. Hover over a Waterfall to see a breakdown.

   Note

   The graph above the Network Log is called the Overview. You will not use the Overview graph in this tutorial, so you may hide it. See Hide the Overview pane.

2. After you open DevTools, it records network activity in the Network Log.
   To demonstrate this, first look at the bottom of the Network Log and make a mental note of the last activity.

3. Now, select the Get Data button in the demo.

4. Look at the bottom of the Network Log again. You should see a new resource called getstarted.json. Selecting the Get Data button caused the page to request this file.

Show more information

The columns of the Network Log are configurable. You may hide columns that you are not using.
There are also many columns that are hidden by default which you may find useful.

1. Hover on the header of the Network Log table, open the contextual menu (right-click), and choose Domain. The domain of each resource is now shown.

   Tip

   See the full URL of a resource by hovering over the cell in the Name column.

Simulate a slower network connection

The network connection of the computer that you use to build sites is probably faster than the network connections of the mobile devices of your users. By throttling the page, you get a better idea of how long a page takes to load on a mobile device.

1. Choose the Throttling dropdown, which is set to Online by default.

2. Choose Slow 3G.

3. Long-press Reload () and then choose Empty Cache And Hard Reload.

   On repeat visits, the browser usually serves some files from the cache, which speeds up the page load. Empty Cache And Hard Reload forces the browser to go the network for all resources. This is helpful when you want to see how a first-time visitor experiences a page load.

   Note

   The Empty Cache And Hard Reload workflow is only available when DevTools is open.

Capture screenshots

Screenshots let you see how a page looked over time while it was loading.

1. Choose () and turn on the Capture screenshots checkbox.

2. Refresh the page again using the Empty Cache And Hard Reload workflow. Navigate to Simulate a slower connection if you need a reminder on how to do this.
   The Screenshots pane provides thumbnails of how the page looked at various points during the loading process.

3. Choose the first thumbnail. DevTools shows you what network activity was occurring at that moment in time.

4. Choose () again and turn off the Capture screenshots checkbox to close the Screenshots pane.

5. Refresh the page again.

Inspect the details of the resource

Choose a resource to learn more information about it. Try it now:

1. Choose getstarted.html. The Headers tab is shown. Use this tab to inspect HTTP headers.

2. Choose the Preview tab. A basic rendering of the HTML is shown.

   The tab is helpful when an API returns an error code in HTML. You may find it easier to read the rendered HTML than the HTML source code, or when you inspect images.

3. Choose the Response tab. The HTML source code is shown.

   Tip

   When a file is minified, choose the Format () button at the bottom of the Response tab to re-format the contents of the file for readability.

4. Choose the Timing tab. A breakdown of the network activity for the resource is displayed.

5. Choose Close () to view the Network Log again.

Search network headers and responses

Use the Search pane when you need to search the HTTP headers and responses of all resources for a certain string or regular expression.

For example, suppose you want to verify that your resources are using reasonable cache policies.

1. Choose Search (). The Search pane opens to the left of the Network log.

2. Type Cache-Control and select Enter. The Search pane lists all instances of Cache-Control that it finds in resource headers or content.

3. Choose a result to view the resource in which the result was found. If you are looking at the details of the resource, select a result to go directly to it. For example, if the query was found in a header, the Headers tab opens. If the query was found in content, the Response tab opens.

4. Close the Search pane and the Headers tab.

Filter resources

DevTools provides numerous workflows for filtering out resources that are not relevant to the task at hand.

The Filters toolbar should be turned on by default. If not:

1. Choose Filter () to show it.

Filter by string, regular expression, or property

The Filter text box supports many different types of filtering.

1. Type png into the Filter text box. Only the files that contain the text png are shown. In this case the only files that match the filter are the PNG images.

2. Type /.*.[cj]s+$/. DevTools filters out any resource with a filename that does not end with a j or a c followed by 1 or more s characters.

3. Type -main.css. DevTools filters out main.css. If any other file matched the pattern they would also be filtered out.

4. Type domain:cdn.glitch.com into the Filter text box. DevTools filters out any resource with a URL that does not match this domain.

   See Filter requests by properties for the full list of filterable properties.

5. Clear the Filter text box of any text.

Filter by resource type

To focus in on a certain type of file, such as stylesheets:

1. Choose CSS. All other file types are filtered out.

2. To also see scripts, hold Control (Windows, Linux) or Command (macOS) and then choose JS.

3. Choose All to remove the filters and see all resources again.

See Filter requests for other filtering workflows.

Block requests

How does a page look and behave when some of the page resources are not available? Does it fail completely, or is it still somewhat functional? Block requests to find out:

1. Select Control+Shift+P (Windows, Linux) or Command+Shift+P (macOS) to open the Command Menu.

2. Type block, choose Show Request Blocking, and select Enter.

3. Choose Add Pattern ().

4. Type main.css.

5. Choose Add.

6. Reload the page. As expected, the styling of the page is slightly messed up because the main stylesheet has been blocked.

   Note

   The main.css row in the Network Log. The red text means that the resource was blocked.

7. Deselect the Enable request blocking checkbox.

Conclusion

Congratulations, you have completed the tutorial. You now know how to use the Network panel in the Microsoft Edge DevTools!

Navigate to the Network Reference to discover more DevTools features related to inspecting network activity.

Getting in touch with the Microsoft Edge DevTools team

Use the following options to discuss the new features and changes in the post, or anything else related to DevTools.

• Send your feedback using the Send Feedback icon or select Alt+Shift+I (Windows, Linux) or Option+Shift+I (macOS) in DevTools.
• Tweet at @EdgeDevTools.
• Submit a suggestion to The Web We Want.
• To file bugs about this article, use the following Feedback section.

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Note

Portions of this page are modifications based on work created and shared by Google and used according to terms described in the Creative Commons Attribution 4.0 International License.
The original page is found here and is authored by Kayce Basques (Technical Writer, Chrome DevTools & Lighthouse).

Devolo Network & Wireless Cards Driver Download Windows 10

This work is licensed under a Creative Commons Attribution 4.0 International License.