Table of Core Web Vitals geographic breakdown ordered by number of origins showing how Core Web Vitals differ by country for a particular technology. For many technologies countries like Japan Germany, and the UK have much better Core Web Vitals than other countries like India and Brazil.

We just added a Core Web Vitals geographic breakdown to the Core Web Vitals tech report when looking at a single technology

httparchive.org/reports/tech...

Many thanks to @alonko.bsky.social for contributing this!

Illustration with the text “Web Almanac 2025” and “HTTP Archive’s annual state of the web report”, showing a large document and small characters beside it, and a “Start exploring” button.

2025 Web Almanac by @httparchive.org is out. A comprehensive, data-backed view of the web, built with trusted experts, across 15 chapters on content, user experience, publishing, and distribution. It also includes a PDF version for offline reading. #almanac #report

almanac.httparchive.org/en/2025/

HTTP Archive 2025 Web Almanac | CSS-Tricks I love me some good web research reports. I'm a sucker for them. HTTP Archive's Web Almanac is one report I look forward to every year, and I know I'm not

Haven't taken the time to digest everything, of course, but The @httparchive.org's 2025 Web Almanac is now out. Dig in!

css-tricks.com/http-archive...

We miss you @rviscomi.dev !

The Almanac is out! If you work in digital, then you should read it to understand where the web is at.
Thanks for the opportunity to work with so many brilliant people on the page weight again and SEO chapters, eg, @tamethebots.com @not-a-robot.com @chris-green.net

Very pleased to have helped out as an editor on the Cookies chapter of the 2025 Web Almanac, which had 70 contributors this year. Congratulations to everyone who worked on it, and a massive thanks to @tunetheweb.com who does so much behind the scenes to get it published.

Page weights look to be getting worse, due to image formats?...

GPTbot is an unpopular visitor then!

The new Web Almanac is out. 🎉

If you don't know the Web Almanac, it's pretty much a summary and analysis of the state of the web based on real data from the HTTP Archive.

As a yearly tradition, I'll go over it and highlight/comment on the things that stand out. Let's go! 🧵

So glad I (finally) put myself forward for this. Such an epic project, I learned so much and got to work with some really great people.

The rumour are true @tunetheweb.com is a legend

Whoop whoop! Almanac is out! Really enjoyed being an analyst this year for the page weight chapter, & am hugely impressed by what @not-a-robot.com & @barkseo.bsky.social wove with that data.

👏 to @montsecano.bsky.social for editorial chops & of @tunetheweb.com, who is a whole new plane of helpful!

Generative AI | 2025 | The Web Almanac by HTTP Archive Generative AI chapter of the 2025 Web Almanac covering the transition to local browser-based AI, the adoption of WebNN and Built-in AI, new discoverability standards like llms.txt, and the emergence o...

The wait is over! The @httparchive.org has officially released the 2025 Web Almanac. 🚀 I led the new #GenerativeAI chapter, which "delves" ;) into the hard numbers of AI adoption on the web, backed by data from millions of sites.

➡️ almanac.httparchive.org/en/2025/gene...

#theWebAlmanac #WebAI

The 2025 Web Almanac by HTTP Archive has been officially released! 🚀

We would like to thank all of our contributors from around the globe who made this extensive report possible!

Check out the full report here: almanac.httparchive.org

Got something to share real soon...

My contribution to this years Web Performance Calendar is all about Third Parties and Single Points of Failure (SPOF). Based on @httparchive.org data I found that 67% of websites have at least 1 render blocking third party - and quite a few of them are SPOF risks!

There's still more things we want to add, and please do let us know what YOU want, but we've achieved feature parity with the old report (and then some!) so it's time to make the commitment and move forward!

Let us know any issues or requests here:
github.com/HTTPArchive/...

A massive "thank you!" to @fossheim.bsky.social for creating such a beautiful front end, and to @maxostapenko.com for doing all the backend work!

🙏 Thank you both 🙏

We've taken the new version of the Core Web Vitals Tech Report out of Beta and now consider this the report to use:

httparchive.org/reports/tech...

Anyone still using the old Looker Studio-based report, it's time to check out the new goodness with much quicker response times and improved UX!

New @httparchive.org analysis about sites adding AI Bots and Crawlers to their robots.txt files. While robots.txt doesn't "block" bots by itself, it's a clear demonstration of the preferences of site owners and the sentiment towards AI crawlers on today's web. paulcalvano.com/2025-08-21-a...

We're please to welcome Nurullah Demir as the newest maintainer of the HTTP Archive project!

Nurullah has helped lead the Web Almanac over the last two years and we look forward to seeing what this year's edition comes up with!

Welcome to the team Nurullah!

🚨 Calling all web experts! 🚨

The 2025 Web Almanac is still open for contributors!

Know someone perfect for it? Mention them here and help us reach the right folks. 🙌

📢 Please help us spread the word!

🔗 Learn more: github.com/HTTPArchive/...

Contribute to the 2025 Web Almanac · HTTPArchive almanac.httparchive.org · Discussion #4062 Dear all, We are excited to announce the Call for Contributions for the 2025 Web Almanac (6th Edition)! The Web Almanac is an annual report that provides an overview of the state of the web, based ...

It's that time of year where the web almanac is seeking contributors for the next edition.
It takes a fair amount of work,but it's ridiculously rewarding,
& guaranteed warm fuzzy feelings when you see the chapter you contributed towards published.

I encourage you to give it a go see:

Contribute to the 2025 Web Almanac · HTTPArchive almanac.httparchive.org · Discussion #4062 Dear all, We are excited to announce the Call for Contributions for the 2025 Web Almanac (6th Edition)! The Web Almanac is an annual report that provides an overview of the state of the web, based ...

The @httparchive.org 's Web Almanac is looking for contributors for this year's edition.

github.com/HTTPArchive/...

What do you think? Shall we do another Web Almanac this year? Diving deep into all the data we collect to see what’s changing in web trends?

Check out this post if interested in getting involved:
github.com/HTTPArchive/...

Or nominate your favorite experts that you’d love to see author a chapter.

John Mueller on stage in front of a graph of Page Weight by year

Ask me how excited I got seeing @johnmu.com cite my and @tamethebots.com ‘s Page Weight chapter at Search Central Live

illustration of an video camera projecting a PLAY BUTTON . caption: "MEDIA"

Day 010 #100DaysOfPerf: In an apt compliment and follow up to the page weight post, working with media is one rife with challenges. Media loading, media formats, media codecs... But it's what makes the web so valuable.
✨ MEDIA ✨ chapter from the @httparchive.org is another worth checking 🧵⬇️

chart indication page weight of desktop and mobile pages between February 1 2020 and February 1 2025 MEDIAN DESKTOP 2678.0 KB up 28.7% MEDIAN MOBILE 2409.8 KB up 27.8%

Though I shared a link from the @httparchive.org and the 2024 Web Almanac, sharing a chart from the the actual archive: over 5 yrs, the page weight has grown almost 30%, and there has never been an indication of slowing down. The almanac chapter covers much of the data proving so. 🧵⬇️

JavaScript | 2024 | The Web Almanac by HTTP Archive JavaScript chapter of the 2024 Web Almanac covering the usage of JavaScript on the web, libraries and frameworks, compression, web components, and source maps.

Web Almanac 2024: JavaScript
@httparchive.org
almanac.httparchive.org/en/2024/java...

#ECMAScript #JavaScript

Fonts | 2024 | The Web Almanac by HTTP Archive Fonts chapter of the 2024 Web Almanac covering where fonts are loaded from, font formats, font loading performance, variable fonts, and color fonts.

Thoughtful font loading can provide performance benefits. This @httparchive.org Web Almanac FONT chapter surprisingly touches on quite a bit, from formats, sizes and more. You can read it all here:
📚: almanac.httparchive.org/en/2024/fonts
Enjoy! #100DaysOfPerf

Illustration of 'F' font being pushed down a conveyor belt by illustrated characters. Caption "fonts"

Day 007 #100DaysOfPerf: Since I touched on the @httparchive.org Web Almanac, decided to continue sharing more of their content. A note: The HTTP Archive really started as a way to see how the web was built, and its performance. So it will always have a hint of performance discussion. Today? FONTS 🧵⬇️