performance-HTML

This extensions displays some technical and structural performance data of websites.

What is performance-HTML?

Performance-HTML is a Chrome extension that facilitates the evaluation and comparison of website performance. It presents technical and structural data such as DNS lookup time, network connection time, time to first byte, document ready and complete time, number of DOM elements and external files, and the memory used for executing Javascript. It is an ideal tool for web developers and designers eager to optimize their sites.

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Extension stats

By: Daniel Lucks

View on Chrome Web Store

Users: 1,000+

Rating: 4.38 (8)

Version: 0.1.3 (Last updated: 2013-12-30)

Creation date: 2013-12-30

Risk impact: High risk impact

Risk likelihood: Low risk likelihood

Manifest version: 2

Permissions:

tabs
*://*/*

Size: 19.77K

Ranking

# 27246 ▼ 222

Other rankings

#3486 in Developer Tools ▼ 5 #2 in performance keyword 12 #36 in html keyword 28 ▼ 4 #100 in javascript keyword 44 ▲ 9

Other platforms

Not available on Firefox

Not available on Edge

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Extension summary

Analyze keywords

This extension determines and displays some very useful performance data of websites in a quick and easy way. Just open the website you want to inspect, click the icon in the browser bar and a popup shows up.

The popup will show performance data like: DNS Lookup Time, Network Connection Time, Time to First Byte, Document Ready and Document Complete. It also shows some performance information in terms of the DOM, such as number of external files (Javascript, CSS) or number of DOM elements. And finally there is a panel for memory usage of Javascript execution.

This extension will give you the possibility to get a quick overview of the performance of a website and to compare it with other sites.

Feedback is very welcome! If you have some feedback or ideas for additional information to show in the popup, don't hesitate to contact me.

User reviews

Great tool !!! To see true data you have to delete browser cache and do an "hard reload" - You can do so by hitting the F12 button and right clicking the refresh button!