Single Page Apps (SPAs) currently do not report Core Web Vitals per these "soft navigations". We're experimenting at changing that. Sites can get involved with an origin trial from Chrome 110.
New blog post from and myself with the details:
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I do like a chart on the cover
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I love when people address criticism like this 👍
During one year:
• TTFB from 2s to 0.3s
• LCP from 4.6s to 1.6s
• Good CLS & interactivity
Making a Shopify alternative with #webperf in mind is a great idea, but actually delivering on the goal is a solid achievement 👏
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In this counter thread, Aleksej , founder of Treo.sh shared his views and concluded that everything I said was was "nonSense".
He also shared a link which showed real world performance data of one Dukaan and two Shopify stores.
twitter.com/alekseykulikov
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The data for November 2022 is easily accessible at Treo: treo.sh/sitespeed
To be precise, this release is 79.7 TB across 239 datasets containing 1,750,533,968 records.
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The 202211 release is now live on BigQuery!
Check out the CrUX Announce post for the full info:
groups.google.com/a/chromium.org
Highlights below
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Good Coffee
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10 principles of good design generated by ChatGPT.
I especially like that Good Design is Iterative. "Iterate. Then Iterate Again." has been my motto for years.
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ChatGPT is mind-blowing at explaining patterns 🤯
I asked it to describe random Amazon links:
• goldbox –> daily deals
• full book title from a URL
• correct extra details about a product
• understanding "the latest" context without any hint in the URL
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I tried to run ChatGPT on a minified version of web-vitals.js
It produced the exact names from the public source.
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who needs javascript deobfuscators?
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ChatGPT knows #webperf optimizations. It also explains changes.
I would never consider the second example, but it makes sense. Trigger async scripts loading and start to render the body quickly.
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I tried out new ChatGPT by OpenAI, threw at it all kind of queries. We are probably just 2-3 yrs away when these models can answer majority of search queries *much* better than classical search engines. This is one of the biggest leaps in info-retri/syn.
chat.openai.com
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Če si tujec in želiš se počutiti kot domačin?
ChatGPT je top! 🇸🇮
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Here's my Spotify Wrapped.
And here's my Spotify account with dozens of playlists I update regularly: open.spotify.com/user/z7a9t8xfs
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This is a big deal: experiment to expose Core Web Vitals metrics for "soft navigations" in SPAs
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Blink: Intent to Experiment: SoftNavigation performance entry groups.google.com/a/chromium.org
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Happy Kherson Liberation Day! 🍉
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Want to make your entire site faster but don’t know where to start? ’s URL-level Core Web Vitals data is an absolute game-changer! (This is NOT an ad—I just really really love using Treo.)
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🆙 The latest CrUX data for Oct 22 is available at Treo: treo.sh/sitespeed
Two new features:
• An extra month of historical data to compare an annual change from Oct 21 to Oct 22;
• Popularity rank is more granular, including 5k, 50k, and 500k #webperf
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I own the old version and immediately ordered the new one.
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Old & New grid design books going out today! counter-print.co.uk/products/grid- | counter-print.co.uk/products/new-p
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How many third-party providers do we have at #perfnow? Do they even know we talk about them all the time?
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Wow! just announced Akamai’s RUM Archive (beta) open-source project 🤩
rumarchive.com
#perfnow #webperf #perfmatters
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The latest CrUX data for September 2022 is available at Treo: treo.sh/sitespeed
Here's the state of Core Web Vitals across some countries:
• 41.4% of origins pass CWV
• LCP is the main issue globally
• CLS doesn't follow LCP/FID #webperf
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Because it's written with CSS it works with ⇧+⌘+C devtools' shortcut.
Hover over an issue and see an element directly, update an order, and see results live.
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I use CT as a bookmark.
It's a simple ON/OFF button to analyze <HEAD> for any website. Because it's written with CSS, it's easy to modify and live debugging.
Here's a bookmark code I use: gist.github.com/alekseykulikov
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CT by is an incredible #webperf tool.
Improve page loading performance just by reordering the <head> tag.
It detects render-blocking resources and shows an optimal order.
It became essential for me, and it's written with CSS (genius!)
→ github.com/csswizardry/ct
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I'm incredibly excited about this!
With soft navigations, INP, and CLS – web performance goes well beyond initial page loading.
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Now playing, in a Canary near you! :) twitter.com/ziyunfei/statu…
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This is the state of the Web. Web Almanac 2022, looking at CSS, JavaScript, fonts, media SEO, accessibility and security, among many other things.
almanac.httparchive.org/en/2022/
Huge kudos to everyone contributing to it! 🎉🥳
#webperf
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Someone started to abuse Treo's free Site Speed tool, fetching 1000s of domains with bots.
It's been a matter of time. And it shows why we can't have nice things :(
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A question to #webperf community: how do you optimize LCP for a search page?
The pattern for a complex search page is that it shows a spinner while a server is searching. Results could be delayed for 5-10 seconds. It's expected by a user and good UX, but LCP is poor.
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I am blown away by the latest album from
Inspired by his analog guy period, I made a playlist of 10 beautiful tunes: open.spotify.com/playlist/5DT9q
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The newest CrUX data for August 2022 is available at Treo: treo.sh/sitespeed
Get free and instant access to real-user data for 23.4M origins (26.6TB of raw BigQuery data across 2868 tables) #webperf
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Proper Core Web Vitals on Single Page Apps? Watch this space!
I wonder if it’ll show the upfront hit is actually a saving for future page loads or not? 🤔
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Made some good progress on my way to TPAC: Got a SoftNavigation performance entry going. (hopefully) Soon in an Origin Trial near you!!
chromium-review.googlesource.com/c/chromium/src
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Excellent thread about Europe's electricity grid. It's a complex topic behind rising prices. The core components are:
• aging infrastructure
• ideology driven policies
• fear of nuclear
• 2022 challenges of gas supply and drought.
Worth a read ↓
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Let's talk electricity.
Europe is in danger of rolling electricity shortages from what I call a crisis of confidence.
I will explain why, back it with data & kindly ask YOU to share it as the fix lies in voting for balanced policies. We must adapt, urgently!
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#Electricity
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