fertdom.blogg.se - Chrome file monitor addon

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This is the main reason of its popularity. It’s light weight and comes with a clean interface. (An example of a resource that is requested outside of the DOM is Google Analytics.Google Chrome is the most popular web browser of the world. This time is stored when the browser fires the DOMContentLoaded event in JavaScript. It is the time to render the page as described in the original document before JavaScript requests additional resources.

DOMContentLoaded: This event represents the perceived time by a user to load the page.

This event generally takes longer than the DOMContentLoaded event.

load: This event is the time to load the page, including all of the JavaScript, CSS, and image files that are in the original HTML document.

The two time values Inside the parentheses are events important for site optimization: This value includes content loaded by JavaScript after the page has rendered as a result, this number can change if requests occur in the background. The first time value is the total time spent loading all of the content on the page. This summary includes the total number of requests, the total size of the entire page including its resources, and a breakdown of the time spent rendering the page in the browser.

However, internet connection speed can also affect performance, so you should always compare times from the same location when you are establishing site performance benchmarks.Īt the bottom of the Network tab is a summary of the page load process. The combination of waiting and receiving times is the most important factor in determining site speed. This type of scenario can lead to incorrect wait time measurements. For example, a PHP script can start sending HTML, even though it is still dynamically generating page content. Sometimes the server starts sending content before it is done generating it.

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Receiving: This includes the time it takes to download the content.

Waiting: This includes time for the server to render the content to be served, and to start sending it to the browser.

Sending: This includes time to send the request with all request data to the server, and to receive confirmation from the server that it has received the request.

Blocking: This includes time for the DNS lookup, SSL handshake, and making a connection to the server.

If you hover your mouse pointer over a bar on the waterfall, a tooltip appears with a detailed breakdown of the download time: Timeline: The timeline is a “waterfall” time-lapse view of each request.

Time: The total time to retrieve the resource, including DNS lookup and download time. Size: The size of the resource as received by the browser (if the page was compressed by the server, this value is smaller than the actual filesize). Initiator: The referer sent to the server this is usually the URL of the page you are viewing.

#Chrome file monitor addon code#

Status: The HTTP status code returned by the server. Name: The name or URL of the requested resource. Alternatively, if you want to test the current page, simply refresh the page.Ĭhrome displays information for each page resource and its request: To test a specific page, open Developer Tools and navigate to the page you want to test. On the Network tab of the Developer Tools pane, Chrome lists all connections for the current page. The following image shows Developer Tools open on the Google home page:

#Chrome file monitor addon mac os#

To access Developer Tools on Apple Mac OS X, press Option+Command+I.

#Chrome file monitor addon windows#

To access Developer Tools on Microsoft Windows or Linux, press Ctrl+Shift+I.The Google Chrome web browser includes Developer Tools, a feature that helps web developers debug issues with HTML, CSS, and JavaScript: