Webkit: Release Notes for Safari Technology Preview 229
Webkit: Release Notes for Safari Technology Preview 229
Webkit: Release Notes for Safari Technology Preview 229
webkit.org
October 2, 2025 at 11:23 PM
Typical... #corewebvitals #webperformance
December 5, 2024 at 4:19 PM
Typical... #corewebvitals #webperformance
Two years of improving the web - so cool to see. #CoreWebVitals
Trying to put this in one image to see if it previews better...
November 3, 2024 at 7:09 PM
Two years of improving the web - so cool to see. #CoreWebVitals
November 15, 2024 at 4:42 PM
LCP and INP are now Baseline newly available /since they are now available in all major browsers! 🎉🥳🍾
Really, really, really curious to see what sort of new performance insights we’ll see as sites start to collect and look at the data!
#CoreWebVitals
Really, really, really curious to see what sort of new performance insights we’ll see as sites start to collect and look at the data!
#CoreWebVitals
Safari 26.2 is here with 65 features + 165 bug fixes — including field-sizing, Navigation API, Largest Contentful Paint, command & commandfor, CHIPS opt-in partitioned cookies, scrollend event, random(), WebGPU in WebXR, scrollbar-color, hidden=until-found and much more! webkit.org/blog/17640/w...
WebKit Features for Safari 26.2
Safari 26.2 is a big release.
webkit.org
December 12, 2025 at 9:15 PM
LCP and INP are now Baseline newly available /since they are now available in all major browsers! 🎉🥳🍾
Really, really, really curious to see what sort of new performance insights we’ll see as sites start to collect and look at the data!
#CoreWebVitals
Really, really, really curious to see what sort of new performance insights we’ll see as sites start to collect and look at the data!
#CoreWebVitals
📢 Yup. That's right. I'm back with #100DaysOfPerf. I'll share more about this tomorrow, but let's have fun again. 👂🏾 🔊 🙃
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
March 4, 2025 at 1:08 AM
📢 Yup. That's right. I'm back with #100DaysOfPerf. I'll share more about this tomorrow, but let's have fun again. 👂🏾 🔊 🙃
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
March 21, 2025 at 3:52 PM
Answering some of your questions about what it means now LCP and INP are "Baseline Newly available" across all major browsers. Let me know if you have any more!
web.dev/blog/lcp-and...
#CoreWebVitals #webperf
web.dev/blog/lcp-and...
#CoreWebVitals #webperf
LCP and INP are now Baseline Newly available | Blog | web.dev
LCP and INP are now Baseline Newly available as of December 12, 2025.
web.dev
December 17, 2025 at 9:42 AM
Answering some of your questions about what it means now LCP and INP are "Baseline Newly available" across all major browsers. Let me know if you have any more!
web.dev/blog/lcp-and...
#CoreWebVitals #webperf
web.dev/blog/lcp-and...
#CoreWebVitals #webperf
April 5, 2025 at 9:45 AM
A slow site costs attention. We improve common performance bottlenecks such as heavy images, caching, scripts and delivery so pages feel faster to visitors. #WebsiteSpeed #CoreWebVitals #DigitalsEarth
https://digitalsearth.com/services/website-management/
https://digitalsearth.com/services/website-management/
WordPress Website Management | DigitalsEarth
WordPress Website Management | DigitalsEarth
digitalsearth.com
September 23, 2026 at 10:03 PM
A slow site costs attention. We improve common performance bottlenecks such as heavy images, caching, scripts and delivery so pages feel faster to visitors. #WebsiteSpeed #CoreWebVitals #DigitalsEarth
https://digitalsearth.com/services/website-management/
https://digitalsearth.com/services/website-management/
The Wes Bos video about the McMaster website performance *may* achieve 1M views by end of this week (currently at ~940k), if not by the 4th week. Just about web performance. Imagine that!
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
November 11, 2024 at 4:49 AM
The Wes Bos video about the McMaster website performance *may* achieve 1M views by end of this week (currently at ~940k), if not by the 4th week. Just about web performance. Imagine that!
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
I've been updating WebPerf Snippets for Chrome DevTools, and this weekend brought 10 new tools for diagnosing web performance directly from the console.
New snippets in webperf-snippets: 🧵
#WebPerf #WebPerformance #ChromeDevTools #CoreWebVitals #JavaScript #WebDev
New snippets in webperf-snippets: 🧵
#WebPerf #WebPerformance #ChromeDevTools #CoreWebVitals #JavaScript #WebDev
February 22, 2026 at 11:01 AM
I've been updating WebPerf Snippets for Chrome DevTools, and this weekend brought 10 new tools for diagnosing web performance directly from the console.
New snippets in webperf-snippets: 🧵
#WebPerf #WebPerformance #ChromeDevTools #CoreWebVitals #JavaScript #WebDev
New snippets in webperf-snippets: 🧵
#WebPerf #WebPerformance #ChromeDevTools #CoreWebVitals #JavaScript #WebDev
April 1, 2026 at 8:42 PM
I spy with my little eye both INP and LCP enabled by default in the latest Safari Tech Preview.
What with Firefox landing INP in stable yesterday (on top of LCP that they already supported) this means we'll soon have cross-browser support for these two Core Web Vitals!
#interop2025 #CoreWebVitals
What with Firefox landing INP in stable yesterday (on top of LCP that they already supported) this means we'll soon have cross-browser support for these two Core Web Vitals!
#interop2025 #CoreWebVitals
October 15, 2025 at 9:49 PM
I spy with my little eye both INP and LCP enabled by default in the latest Safari Tech Preview.
What with Firefox landing INP in stable yesterday (on top of LCP that they already supported) this means we'll soon have cross-browser support for these two Core Web Vitals!
#interop2025 #CoreWebVitals
What with Firefox landing INP in stable yesterday (on top of LCP that they already supported) this means we'll soon have cross-browser support for these two Core Web Vitals!
#interop2025 #CoreWebVitals
LCP and INP are part of Interop 2025 so hopefully coming to Firefox and Safari this year! 🥳
Checking in, I'm seeing:
Firefox
- LCP is in stable 🎉
- INP is behind a flag 🔜?
Safari
- LCP is being actively worked judging by spec questions 🏗️
- INP is available behind a flag in STP 🔜?
#CoreWebVitals
Checking in, I'm seeing:
Firefox
- LCP is in stable 🎉
- INP is behind a flag 🔜?
Safari
- LCP is being actively worked judging by spec questions 🏗️
- INP is available behind a flag in STP 🔜?
#CoreWebVitals
September 17, 2025 at 9:55 AM
LCP and INP are part of Interop 2025 so hopefully coming to Firefox and Safari this year! 🥳
Checking in, I'm seeing:
Firefox
- LCP is in stable 🎉
- INP is behind a flag 🔜?
Safari
- LCP is being actively worked judging by spec questions 🏗️
- INP is available behind a flag in STP 🔜?
#CoreWebVitals
Checking in, I'm seeing:
Firefox
- LCP is in stable 🎉
- INP is behind a flag 🔜?
Safari
- LCP is being actively worked judging by spec questions 🏗️
- INP is available behind a flag in STP 🔜?
#CoreWebVitals
Web performance is a marathon, not a sprint. Ship the fastest site today and in two weeks a third-party script, an unoptimised image or a CDN change will have quietly undone it.
Optimising without monitoring doesn't last. 🧵
#WebPerf #RUM #CoreWebVitals
Optimising without monitoring doesn't last. 🧵
#WebPerf #RUM #CoreWebVitals
August 3, 2026 at 9:38 PM
Web performance is a marathon, not a sprint. Ship the fastest site today and in two weeks a third-party script, an unoptimised image or a CDN change will have quietly undone it.
Optimising without monitoring doesn't last. 🧵
#WebPerf #RUM #CoreWebVitals
Optimising without monitoring doesn't last. 🧵
#WebPerf #RUM #CoreWebVitals
Look at that 🤩 Safari now supports #LCP and #INP as well!
And we can clearly see it in our data 💪
Dates:
🗓️ Nov 3rd: Safari rolled out support in their 26.2 beta release
🗓️ Dec 12th: Safari released it to the public
Huge update from the WebKit team, and for #CoreWebVitals in general 👏
1/3
And we can clearly see it in our data 💪
Dates:
🗓️ Nov 3rd: Safari rolled out support in their 26.2 beta release
🗓️ Dec 12th: Safari released it to the public
Huge update from the WebKit team, and for #CoreWebVitals in general 👏
1/3
December 16, 2025 at 8:45 AM
Look at that 🤩 Safari now supports #LCP and #INP as well!
And we can clearly see it in our data 💪
Dates:
🗓️ Nov 3rd: Safari rolled out support in their 26.2 beta release
🗓️ Dec 12th: Safari released it to the public
Huge update from the WebKit team, and for #CoreWebVitals in general 👏
1/3
And we can clearly see it in our data 💪
Dates:
🗓️ Nov 3rd: Safari rolled out support in their 26.2 beta release
🗓️ Dec 12th: Safari released it to the public
Huge update from the WebKit team, and for #CoreWebVitals in general 👏
1/3
🎉 WebPerformance Report Week #50. Delivered ✅
Ready for next week's #WebPerformance Report? Join our community by subscribing from our website:
👉 webperformancereport.com
#webperf #corewebvitals #ux #seo
Ready for next week's #WebPerformance Report? Join our community by subscribing from our website:
👉 webperformancereport.com
#webperf #corewebvitals #ux #seo
December 15, 2024 at 11:39 AM
🎉 WebPerformance Report Week #50. Delivered ✅
Ready for next week's #WebPerformance Report? Join our community by subscribing from our website:
👉 webperformancereport.com
#webperf #corewebvitals #ux #seo
Ready for next week's #WebPerformance Report? Join our community by subscribing from our website:
👉 webperformancereport.com
#webperf #corewebvitals #ux #seo
RUM for all! 🍹
Being able to monitor real user experiences is more important than ever. And now it's easier than ever, with integrations like this new open-source SpeedCurve
#Magento module and our recent #Shopify RUM app.
#pagespeed #sitespeed #webperf #ux #corewebvitals
Being able to monitor real user experiences is more important than ever. And now it's easier than ever, with integrations like this new open-source SpeedCurve
#Magento module and our recent #Shopify RUM app.
#pagespeed #sitespeed #webperf #ux #corewebvitals
We ❤️ great people building apps that empower other folks to use our tools! The new open‑source #Magento module – from Jesper Ingels and the team at Bluebird Day – lets you integrate our RUM into your Magento project in minutes – no coding required!
www.speedcurve.com/blog/real-us...
#corewebvitals
www.speedcurve.com/blog/real-us...
#corewebvitals
SpeedCurve | NEW! SpeedCurve RUM for your Magento projects
Integrate robust real user monitoring into your Magento project in minutes!
www.speedcurve.com
June 19, 2025 at 6:13 PM
RUM for all! 🍹
Being able to monitor real user experiences is more important than ever. And now it's easier than ever, with integrations like this new open-source SpeedCurve
#Magento module and our recent #Shopify RUM app.
#pagespeed #sitespeed #webperf #ux #corewebvitals
Being able to monitor real user experiences is more important than ever. And now it's easier than ever, with integrations like this new open-source SpeedCurve
#Magento module and our recent #Shopify RUM app.
#pagespeed #sitespeed #webperf #ux #corewebvitals
⚡ Website speed: Before vs After
Slow websites lose users & rankings ❌
Optimized websites win trust & conversions ✅
Page speed = SEO + UX 🚀
#PageSpeed #WebPerformance #CoreWebVitals #SEO #FrontendDeveloper #TofiqueKhan
Slow websites lose users & rankings ❌
Optimized websites win trust & conversions ✅
Page speed = SEO + UX 🚀
#PageSpeed #WebPerformance #CoreWebVitals #SEO #FrontendDeveloper #TofiqueKhan
February 4, 2026 at 1:58 AM
⚡ Website speed: Before vs After
Slow websites lose users & rankings ❌
Optimized websites win trust & conversions ✅
Page speed = SEO + UX 🚀
#PageSpeed #WebPerformance #CoreWebVitals #SEO #FrontendDeveloper #TofiqueKhan
Slow websites lose users & rankings ❌
Optimized websites win trust & conversions ✅
Page speed = SEO + UX 🚀
#PageSpeed #WebPerformance #CoreWebVitals #SEO #FrontendDeveloper #TofiqueKhan
Practical guide to the ![]()
element: from the basics to LCP
joanleon.dev/en/guia-prac...
#WebPerf #ImagePerf #Performance #LCP #CoreWebVitals
joanleon.dev/en/guia-prac...
#WebPerf #ImagePerf #Performance #LCP #CoreWebVitals
Practical guide to the <img> element: from the basics to LCP | Joan León
The <img> element has attributes that make a real difference in performance: loading, decoding, fetchpriority, srcset and sizes. A practical guide to using them well.
joanleon.dev
February 22, 2026 at 12:29 PM
Practical guide to the ![]()
element: from the basics to LCP
joanleon.dev/en/guia-prac...
#WebPerf #ImagePerf #Performance #LCP #CoreWebVitals
joanleon.dev/en/guia-prac...
#WebPerf #ImagePerf #Performance #LCP #CoreWebVitals
Web performance is about conversions, not just metrics. ⚡
Google measures #CoreWebVitals on real users, not machines. If your site feels slow to them, your business pays the price.
#CoreWebVitals #SiteSpeed
#WebPerf #SEO
Google measures #CoreWebVitals on real users, not machines. If your site feels slow to them, your business pays the price.
#CoreWebVitals #SiteSpeed
#WebPerf #SEO
January 8, 2026 at 9:48 AM
Web performance is about conversions, not just metrics. ⚡
Google measures #CoreWebVitals on real users, not machines. If your site feels slow to them, your business pays the price.
#CoreWebVitals #SiteSpeed
#WebPerf #SEO
Google measures #CoreWebVitals on real users, not machines. If your site feels slow to them, your business pays the price.
#CoreWebVitals #SiteSpeed
#WebPerf #SEO
Huge thanks to @andydavies.me for mentioning the LoAF Helpers WebPerf Snippet at @perfnow.nl!
Honored to be part of the amazing Web Performance community 🫶
🔗 webperf-snippets.nucliweb.net/Interaction/...
#WebPerf #PerfNow #Performance #LoAF #INP #CoreWebVitals
Honored to be part of the amazing Web Performance community 🫶
🔗 webperf-snippets.nucliweb.net/Interaction/...
#WebPerf #PerfNow #Performance #LoAF #INP #CoreWebVitals
October 31, 2025 at 10:21 AM
Huge thanks to @andydavies.me for mentioning the LoAF Helpers WebPerf Snippet at @perfnow.nl!
Honored to be part of the amazing Web Performance community 🫶
🔗 webperf-snippets.nucliweb.net/Interaction/...
#WebPerf #PerfNow #Performance #LoAF #INP #CoreWebVitals
Honored to be part of the amazing Web Performance community 🫶
🔗 webperf-snippets.nucliweb.net/Interaction/...
#WebPerf #PerfNow #Performance #LoAF #INP #CoreWebVitals
[CrUX Announce] The 202410 dataset is live ⚡
Thanks Barry @tunetheweb.com 🙌
groups.google.com/a/chromium.o...
#webperf #crux #corewebvitals
Thanks Barry @tunetheweb.com 🙌
groups.google.com/a/chromium.o...
#webperf #crux #corewebvitals
November 12, 2024 at 8:05 PM
[CrUX Announce] The 202410 dataset is live ⚡
Thanks Barry @tunetheweb.com 🙌
groups.google.com/a/chromium.o...
#webperf #crux #corewebvitals
Thanks Barry @tunetheweb.com 🙌
groups.google.com/a/chromium.o...
#webperf #crux #corewebvitals
New to the world of web performance? Welcome! Here's everything you need to know to master website monitoring, analytics, and diagnostics. Learn how to deliver a fast, joyous experience to all your users.
www.speedcurve.com/web-performa...
#webperf #pagespeed #sitespeed #ux #corewebvitals
www.speedcurve.com/web-performa...
#webperf #pagespeed #sitespeed #ux #corewebvitals
August 19, 2025 at 7:05 PM
New to the world of web performance? Welcome! Here's everything you need to know to master website monitoring, analytics, and diagnostics. Learn how to deliver a fast, joyous experience to all your users.
www.speedcurve.com/web-performa...
#webperf #pagespeed #sitespeed #ux #corewebvitals
www.speedcurve.com/web-performa...
#webperf #pagespeed #sitespeed #ux #corewebvitals