Lighthouse promo image
What is Lighthouse?

Lighthouse is a very popular Chrome extension by This extension has 1,037,250 weekly active users, a good user rating of 4.43, and is most similar to Google PageSpeed Insights API Extension and SEO META in 1 CLICK. The latest version,, was updated 4 years ago.

Stats date:
Rating: 4.43 (288)
Version: (Last updated: 2019-11-20)
Creation date: 2019-11-19
Manifest version: 2
  • activeTab
  • storage
Size: 27.74K
URLs: Website
Risk impact: Very low risk impact
Risk likelihood: Very low risk likelihood

Other platforms

Not available on Firefox
Not available on Edge
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps. 

When auditing a page, Lighthouse runs a barrage of tests against the page, and then generates a report on how well the page did. From here you can use the failing tests as indicators on what you can do to improve your app.

* Quick-start guide on using Lighthouse:

* View and share reports online:

* Github source and details:
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Useful for web stats and development
  • Provides detailed reports
  • Easy to use
  • Good utility tool
  • Not updated frequently
  • Limited functionality for certain websites
  • Limited to mobile tests only
  • Does not support incognito mode
Most mentioned
  • Useful
  • Report
  • Mobile
  • Updated
  • Test
  • Tool
  • Limited
  • Functionality
  • Extension
  • Chrome
View all user reviews
Risk impact

Lighthouse is safe to use. It does not request any sensitive permissions.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

Lighthouse has earned a good reputation and can be trusted.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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