Lighthouse analyzes web apps & sites, collecting modern performance metrics and insights on best practices. 📊 And yes, that's 4 underscores, my friends!
Lighthouse v11.2 includes an overhaul to the performance category that focuses audit prioritization on estimated impact to the performance metrics. Also included is an upgraded score gauge. On hover, it visualizes how each performance metric affects the overall performance score.
@naveedahmed@googlechrome@patrickhulce@addyosmani@ChromiumDev Those checks are (most likely) Chrome specific. Safari and Firefox have their own heuristics. See the "web-exposed behaviour" link at https://t.co/4FO33dQGPw however that doc sadly doesn't note how IDB is handled for Safari/Firefox.
In Lighthouse 10.1, we've upgraded reporting of third parties and their impact:
➡️Audit tables are now grouped by party
➡️Detected third parties are tagged with their category (and linked!), so it’s easier to identify their purpose
PageSpeed Insights has expanded! The lab section now includes the entire Lighthouse report:
+ Accessibility
+ Best Practices
+ SEO
Try it now: https://t.co/XTc9oMhF6b
Have you try out the new audit modes in @____lighthouse@ChromeDevTools yet?
Use the Timespan mode to identify layout shifts and JavaScript execution time over a time range including interactions.
Learn about the Snapshot mode and more 👉🏼 https://t.co/DD74phufty
Now that the May HTTP Archive dataset is out with some URL-level data in the mobile pages table, I thought it would be a good time to repeat some internal analysis I did on the public dataset: https://t.co/qZC0DBpj00
There have been a LOT of recent developments in the world of web performance and Core Web Vitals that are being showcased at Google I/O this week.
Here's a rundown of the highlights, so you don't miss anything 👇
Lighthouse CI has been updated to Lighthouse 9.3.0! Great for continuous perf monitoring.
Changelog: https://t.co/bROBzZyvZA
Learn how to use LHCI: https://t.co/K8tliTbZzD
Lighthouse 9.0 is here! 💡🔅🔆⛵
Look for user flow support, a refreshed report, and more helpful accessibility audits.
Try it through npm, Chrome Canary, or the new PageSpeed Insights!
https://t.co/qAKDrWEPGp
Introducing the new PageSpeed Insights: a more intuitive way to measure performance & improve it using real-world and lab data.
Details: https://t.co/wxk98nOWOE
Try it: https://t.co/MOHTC8eRvP
Introducing Lighthouse for user flows: drive your page with a Puppeteer script and have Lighthouse measure and audit performance at every step: https://t.co/R7qmEIFNEc
We're trying this out as a more in-depth companion to the usual changelog (https://t.co/wO13P73wez). Let us know what you'd like to see in these posts in the future!
💡What's new in Lighthouse 8.4!💡
New audits to check that:
🖼️ LCP images aren't lazy-loaded
📲 A mobile meta viewport is used (don't wreck your FID!)
https://t.co/7shZWtcIQI
Lighthouse now considers the (sometimes significant) improvements that AVIF image compression can bring when advising on improving image load time!
Look for the estimates under "next-gen formats" in the Lighthouse report 🤏🖼️⚖️