META-INF.dirigible.dev-tools.lighthouse.lighthouse_strings.grdp Maven / Gradle / Ivy
Auditing your web page
Progressive Web App
💡 $1s75% of global mobile users in 2016 were on 2G or 3G [Source: GSMA Mobile]
The average user device costs less than 200 USD. [Source: International Data Corporation ]
View Trace
19 seconds is the average time a mobile web page takes to load on a 3G connection [Source: Google DoubleClick blog ]
Apply mobile emulation during auditing
Drop Lighthouse JSON here
The print popup window is open. Please close it to continue.
70% of mobile pages take nearly 7 seconds for the visual content above the fold to display on the screen. [Source: Think with Google ]
Can only audit HTTP/HTTPS pages and Chrome extensions. Navigate to a different page to start an audit.
Lighthouse is loading your page
How long does this app take to show content and become usable
Is this page optimized for ad speed and quality
75% of global mobile users in 2016 were on 2G or 3G [Source: GSMA Mobile ]
Try to navigate to the URL in a fresh Chrome profile without any other tabs or extensions open and try again.
Perform an audit…
Cancelling
Lighthouse is loading your page with throttling to measure performance on a mobile device on 3G.
1MB takes a minimum of 5 seconds to download on a typical 3G connection [Source: WebPageTest and DevTools 3G definition].
Simulated throttling
70% of mobile pages weigh over 1MB, 36% over 2MB, and 12% over 4MB. [Source: Think with Google ]
Ah, sorry! We ran into an error.
Cancelling…
Is this page usable by people with disabilities or impairments
At least one category must be selected.
Multiple tabs are being controlled by the same service worker. Close your other tabs on the same origin to audit this page.
As page load time increases from one second to seven seconds, the probability of a mobile site visitor bouncing increases 113%. [Source: Think with Google ]
Simulate a slower page load, based on data from an initial unthrottled load. If disabled, the page is actually slowed with applied throttling.
Lighthouse settings
Community Plugins (beta)
Is this page optimized for search engine results ranking
Lighthouse is loading your page with throttling to measure performance on a slow desktop on 3G.
Walmart saw a 1% increase in revenue for every 100ms improvement in page load [Source: WPO Stats ]
Lighthouse only simulates mobile performance; to measure performance on a real device, try WebPageTest.org [Source: Lighthouse team]
Rebuilding Pinterest pages for performance increased conversion rates by 15% [Source: WPO Stats ]
(new report)
Auditing $1sgithub.com
Lighthouse is warming up…
Reset storage (localStorage, IndexedDB, etc) before auditing. (Good for performance & PWA testing)
Lighthouse is loading your page.
If a site takes >1 second to become interactive, users lose attention, and their perception of completing the page task is broken [Source: Google Developers Blog ]
Lighthouse is gathering information about the page to compute your score.
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Categories
Printing
Lighthouse
Does this page meet the standard of a Progressive Web App
By reducing the response size of JSON needed for displaying comments, Instagram saw increased impressions [Source: WPO Stats ]
Generate report
Does this page follow best practices for modern web development
Best practices
Reports
Lighthouse is loading your page with mobile emulation.
SEO
Identify and fix common problems that affect your site's performance, accessibility, and user experience.
As the number of elements on a page increases from 400 to 6,000, the probability of conversion drops 95%. [Source: Think with Google ]
If this issue is reproducible, please report it at the Lighthouse GitHub repo.
Almost there! Lighthouse is now generating your report.
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