Annie Sullivan
@anniesullie.com
Chrome Web Platform Engineer (Core Web Vitals). USDS alum. Mom. Loves OCR training, making and crafting. Hates facists.
Reposted by Annie Sullivan
A new W3C Community Group is being created to promote minimising dependencies and simplifying development.
I am attempting to launch a new No Build W3C Community Group. Sign up if you are interested in under-engineering on the web. www.w3.org/community/bl...
June | 2026 | Community and Business Groups
www.w3.org
June 29, 2026 at 9:37 AM
A new W3C Community Group is being created to promote minimising dependencies and simplifying development.
Reposted by Annie Sullivan
What have you always wanted to know about CrUX?
Tee me up with questions in your replies or, better yet, tune in to ask your question live!
Tee me up with questions in your replies or, better yet, tune in to ask your question live!
✨ SPDY STREAM 038 ✨ with @tunetheweb.com
Optimizing real world UX requires navigating CrUX. Our guest Barry Pollard, Performance Advocate for Google will chat all things CrUX: from the Daily + Historical API and much more...
📅 Tuesday June 30th
⏰ 11am EST, 4pm 🇬🇧
🔗 YT: youtube.com/live/qo3aCzd...
Optimizing real world UX requires navigating CrUX. Our guest Barry Pollard, Performance Advocate for Google will chat all things CrUX: from the Daily + Historical API and much more...
📅 Tuesday June 30th
⏰ 11am EST, 4pm 🇬🇧
🔗 YT: youtube.com/live/qo3aCzd...
June 26, 2026 at 1:42 PM
What have you always wanted to know about CrUX?
Tee me up with questions in your replies or, better yet, tune in to ask your question live!
Tee me up with questions in your replies or, better yet, tune in to ask your question live!
Reposted by Annie Sullivan
This is me! We're focusing on a few areas next month and I'm leading the "Paper cuts" area. So spam me with your bugs, please - and please file them yourselves first so I can triage them internally 😁
The Chrome DevTools team are doing a "papercuts" sprint where they try to address lots of small, irritating bugs and annoyances.
Reply with crbug.com links (no bug, no fix—that's the deal!) and will see what we can do.
No promises though as some may be features/too big/unclear how to solve.
Reply with crbug.com links (no bug, no fix—that's the deal!) and will see what we can do.
No promises though as some may be features/too big/unclear how to solve.
Chromium
crbug.com
June 20, 2026 at 11:52 AM
This is me! We're focusing on a few areas next month and I'm leading the "Paper cuts" area. So spam me with your bugs, please - and please file them yourselves first so I can triage them internally 😁
Reposted by Annie Sullivan
We just sent out a TEST MAIL to our mailing list.
Last year quite a few people didn't see the announcement mail and missed the early bird ticket sale.
So this year we run a test first. If you're subscribed to our mailing list, please make sure you got the test mail.
Or perfnow.nl/subscribe
Last year quite a few people didn't see the announcement mail and missed the early bird ticket sale.
So this year we run a test first. If you're subscribed to our mailing list, please make sure you got the test mail.
Or perfnow.nl/subscribe
May 11, 2026 at 12:06 PM
We just sent out a TEST MAIL to our mailing list.
Last year quite a few people didn't see the announcement mail and missed the early bird ticket sale.
So this year we run a test first. If you're subscribed to our mailing list, please make sure you got the test mail.
Or perfnow.nl/subscribe
Last year quite a few people didn't see the announcement mail and missed the early bird ticket sale.
So this year we run a test first. If you're subscribed to our mailing list, please make sure you got the test mail.
Or perfnow.nl/subscribe
Reposted by Annie Sullivan
✨ SPDY MEETUP 005 ✨
📍 New Performance API, Data On CWV Navigations
We're back in the @mozilla.org Toronto office w/ great presentations
🗣️ @anniesullie.com
🗣️ @mmocny.com
🗣️ @basschouten.bsky.social
🗣️ Lightning talk?
📆 Wednesday May 13th
🎟️ RSVP below if in Toronto
www.meetup.com/spdy-meetup-...
📍 New Performance API, Data On CWV Navigations
We're back in the @mozilla.org Toronto office w/ great presentations
🗣️ @anniesullie.com
🗣️ @mmocny.com
🗣️ @basschouten.bsky.social
🗣️ Lightning talk?
📆 Wednesday May 13th
🎟️ RSVP below if in Toronto
www.meetup.com/spdy-meetup-...
SPDY MEETUP 005: New Performance API, Data On CWV Navigations, Wed, May 13, 2026, 6:00 PM | Meetup
**SPDY MEETUP 005**
Welcome back! Following up on last week’s announcement, we are thrilled to schedule **SPDY MEETUP 005**. As always, we’ll be joined by incredible engin
www.meetup.com
May 6, 2026 at 3:00 PM
✨ SPDY MEETUP 005 ✨
📍 New Performance API, Data On CWV Navigations
We're back in the @mozilla.org Toronto office w/ great presentations
🗣️ @anniesullie.com
🗣️ @mmocny.com
🗣️ @basschouten.bsky.social
🗣️ Lightning talk?
📆 Wednesday May 13th
🎟️ RSVP below if in Toronto
www.meetup.com/spdy-meetup-...
📍 New Performance API, Data On CWV Navigations
We're back in the @mozilla.org Toronto office w/ great presentations
🗣️ @anniesullie.com
🗣️ @mmocny.com
🗣️ @basschouten.bsky.social
🗣️ Lightning talk?
📆 Wednesday May 13th
🎟️ RSVP below if in Toronto
www.meetup.com/spdy-meetup-...
Reposted by Annie Sullivan
Look, the Web Engines Hackfest is now a W3C-endorsed conference: www.w3.org/events/confe...
Some working groups might arrange meetings at the hackfest. Thanks to W3C for your support and collaboration.
Some working groups might arrange meetings at the hackfest. Thanks to W3C for your support and collaboration.
2026 Web Engines Hackfest
Yearly web platform community event for people working on the different engines, testing, specifications, web compat, documentation.
www.w3.org
April 7, 2026 at 9:02 AM
Look, the Web Engines Hackfest is now a W3C-endorsed conference: www.w3.org/events/confe...
Some working groups might arrange meetings at the hackfest. Thanks to W3C for your support and collaboration.
Some working groups might arrange meetings at the hackfest. Thanks to W3C for your support and collaboration.
Reposted by Annie Sullivan
ICE out in Ypsilanti today
Stay safe and keep your folks safe
Please
Stay safe and keep your folks safe
Please
March 18, 2026 at 11:40 AM
ICE out in Ypsilanti today
Stay safe and keep your folks safe
Please
Stay safe and keep your folks safe
Please
Reposted by Annie Sullivan
I'm a part of ParaCliffHangers. It is a group that makes rock climbing accessible to disabled athletes (and future athletes!)
We're hosting Owl Night at Pacific Pipe on Saturday 3/14. The gym will be open until 3am. Get tickets paracliffhangers.rallybound.org
We're hosting Owl Night at Pacific Pipe on Saturday 3/14. The gym will be open until 3am. Get tickets paracliffhangers.rallybound.org
Owl Night
Help support ParaCliffHangers today!
paracliffhangers.rallybound.org
March 13, 2026 at 7:01 PM
I'm a part of ParaCliffHangers. It is a group that makes rock climbing accessible to disabled athletes (and future athletes!)
We're hosting Owl Night at Pacific Pipe on Saturday 3/14. The gym will be open until 3am. Get tickets paracliffhangers.rallybound.org
We're hosting Owl Night at Pacific Pipe on Saturday 3/14. The gym will be open until 3am. Get tickets paracliffhangers.rallybound.org
Reposted by Annie Sullivan
Gretchen Whitmer is on point: We need more homes and allowing more choices and more building will help get us there.
@abundanthousingmi.bsky.social
#a2council #shareourcity #neighborsformoreneighbors #annarbor #a2 #michigan
@abundanthousingmi.bsky.social
#a2council #shareourcity #neighborsformoreneighbors #annarbor #a2 #michigan
February 26, 2026 at 1:35 PM
Gretchen Whitmer is on point: We need more homes and allowing more choices and more building will help get us there.
@abundanthousingmi.bsky.social
#a2council #shareourcity #neighborsformoreneighbors #annarbor #a2 #michigan
@abundanthousingmi.bsky.social
#a2council #shareourcity #neighborsformoreneighbors #annarbor #a2 #michigan
Reposted by Annie Sullivan
FBI, HSI, and ICE detaining someone at the corner of Forest and Prospect in Ypsilanti. 5 unmarked cars. ~ 10 officers.
February 25, 2026 at 2:13 PM
FBI, HSI, and ICE detaining someone at the corner of Forest and Prospect in Ypsilanti. 5 unmarked cars. ~ 10 officers.
Reposted by Annie Sullivan
A shocking 8.5% of sites that use CDNs deliver some static content directly to end users via cloud storage! Many are not compressing or caching this content either. This comes at a significant performance cost. Details, examples and @httparchive.org stats here - paulcalvano.com/2026-02-09-s...
February 9, 2026 at 12:34 PM
A shocking 8.5% of sites that use CDNs deliver some static content directly to end users via cloud storage! Many are not compressing or caching this content either. This comes at a significant performance cost. Details, examples and @httparchive.org stats here - paulcalvano.com/2026-02-09-s...
Reposted by Annie Sullivan
January 27, 2026 at 3:10 PM
Vigil in Ann Arbor for Alex Pretti.
January 27, 2026 at 1:47 AM
Vigil in Ann Arbor for Alex Pretti.
Reposted by Annie Sullivan
Here are a few ways to support our immigrant neighbors in Washtenaw County, from the Washtenaw Interfaith Coalition for Immigrant Rights (WICIR). #a2council
January 26, 2026 at 12:57 AM
Here are a few ways to support our immigrant neighbors in Washtenaw County, from the Washtenaw Interfaith Coalition for Immigrant Rights (WICIR). #a2council
Reposted by Annie Sullivan
here's a brief look ahead at what we have planned in the e18e community for 2026 🎉
great collaborations, and many useful developer tools are in the works.
also a huge thanks to all who contributed so far - many of the libraries, tools, and frameworks we use today are faster because of you 💙
great collaborations, and many useful developer tools are in the works.
also a huge thanks to all who contributed so far - many of the libraries, tools, and frameworks we use today are faster because of you 💙
The Year Ahead (2026)
A look ahead at what's coming in 2026 for the e18e community
e18e.dev
January 24, 2026 at 2:21 PM
here's a brief look ahead at what we have planned in the e18e community for 2026 🎉
great collaborations, and many useful developer tools are in the works.
also a huge thanks to all who contributed so far - many of the libraries, tools, and frameworks we use today are faster because of you 💙
great collaborations, and many useful developer tools are in the works.
also a huge thanks to all who contributed so far - many of the libraries, tools, and frameworks we use today are faster because of you 💙
Reposted by Annie Sullivan
I just merged the code change for this. We'll now have new Device Memory API limits from Chrome 146 and other Chromium-based browsers:
- Android: 2, 4, 8
- Others: 2, 4, 8, 16, 32
Replacing the old values of 0.25, 0.5, 1, 2, 4, 8 which have grown outdated.
Next up, updating MDN documentation...
- Android: 2, 4, 8
- Others: 2, 4, 8, 16, 32
Replacing the old values of 0.25, 0.5, 1, 2, 4, 8 which have grown outdated.
Next up, updating MDN documentation...
Blink: Intent to Ship: Update Device Memory API limits
Blink: Intent to Ship: Update Device Memory API limits
Blink: Intent to Ship: Update Device Memory API limits
groups.google.com
January 23, 2026 at 6:56 PM
I just merged the code change for this. We'll now have new Device Memory API limits from Chrome 146 and other Chromium-based browsers:
- Android: 2, 4, 8
- Others: 2, 4, 8, 16, 32
Replacing the old values of 0.25, 0.5, 1, 2, 4, 8 which have grown outdated.
Next up, updating MDN documentation...
- Android: 2, 4, 8
- Others: 2, 4, 8, 16, 32
Replacing the old values of 0.25, 0.5, 1, 2, 4, 8 which have grown outdated.
Next up, updating MDN documentation...
Reposted by Annie Sullivan
Big news! Google have sponsored the @e18e.dev community $10k via their Chrome performance fund 🎉
I'm very thankful we've managed to create a space and a community people appreciate. Sponsorships like this will benefit the ecosystem, not just this community
I'm very thankful we've managed to create a space and a community people appreciate. Sponsorships like this will benefit the ecosystem, not just this community
January 22, 2026 at 10:24 AM
Big news! Google have sponsored the @e18e.dev community $10k via their Chrome performance fund 🎉
I'm very thankful we've managed to create a space and a community people appreciate. Sponsorships like this will benefit the ecosystem, not just this community
I'm very thankful we've managed to create a space and a community people appreciate. Sponsorships like this will benefit the ecosystem, not just this community
Reposted by Annie Sullivan
I am running for #A2Council in the Fourth Ward! Please support our people-powered campaign and help us lead Ann Arbor forward. secure.actblue.com/donate/sova2...
January 21, 2026 at 3:00 PM
I am running for #A2Council in the Fourth Ward! Please support our people-powered campaign and help us lead Ann Arbor forward. secure.actblue.com/donate/sova2...
Reposted by Annie Sullivan
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
Reposted by Annie Sullivan
Calling all web developers! Browsers are all meeting up next week (www.w3.org/events/tpac/...). I want your voice to be heard! Tell me your biggest problems, and tell me what you want to see from the platform. What problems are tough to solve, but could be easier?
TPAC 2025 - Hybrid meeting
Our major event of the year gathers our community for thought-provoking discussions and coordinated work.
www.w3.org
November 6, 2025 at 9:44 AM
Calling all web developers! Browsers are all meeting up next week (www.w3.org/events/tpac/...). I want your voice to be heard! Tell me your biggest problems, and tell me what you want to see from the platform. What problems are tough to solve, but could be easier?
Reposted by Annie Sullivan
There is an election today in the Washtenaw Intermediate School District. I think you should vote Yes on the Career Technical Education Millage: www.damnarbor.com/2025/11/elec...
#a2Council
#YpsiCouncil
#a2Council
#YpsiCouncil
Election 2025: Vote in favor of the WISD millage
Gentle readers, it's election day if you are registered to vote in the Washtenaw Intermediate School District (WISD). The one item on the ...
www.damnarbor.com
November 4, 2025 at 2:58 PM
There is an election today in the Washtenaw Intermediate School District. I think you should vote Yes on the Career Technical Education Millage: www.damnarbor.com/2025/11/elec...
#a2Council
#YpsiCouncil
#a2Council
#YpsiCouncil
Reposted by Annie Sullivan
We have a special visitor at the Downtown Library today! Thanks, @davidzinn.bsky.social!
October 28, 2025 at 4:38 PM
We have a special visitor at the Downtown Library today! Thanks, @davidzinn.bsky.social!
Reposted by Annie Sullivan
It’s gonna be a fun day at the Downtown Library! Join us for Dead Media Day from 11-3 Sunday and enjoy the vintage arcade. No tokens required!
October 12, 2025 at 1:47 PM
It’s gonna be a fun day at the Downtown Library! Join us for Dead Media Day from 11-3 Sunday and enjoy the vintage arcade. No tokens required!
Reposted by Annie Sullivan
Really excited to be speaking @perfnow.nl this year—my favourite conference run by some of my favourite people!
If you're into web performance (or wanna be!) and like a great conference with a super friendly vibe then pop along to Amsterdam at the end of October. Tickets selling fast!
perfnow.nl
If you're into web performance (or wanna be!) and like a great conference with a super friendly vibe then pop along to Amsterdam at the end of October. Tickets selling fast!
perfnow.nl
performance.now(); 30th and 31st of October, Amsterdam
On 30th and 31st of October, 2025, the sixth edition of performance.now() will take place in Amsterdam—a single track conference, covering today’s most important web performance insights.
perfnow.nl
September 2, 2025 at 6:42 PM
Really excited to be speaking @perfnow.nl this year—my favourite conference run by some of my favourite people!
If you're into web performance (or wanna be!) and like a great conference with a super friendly vibe then pop along to Amsterdam at the end of October. Tickets selling fast!
perfnow.nl
If you're into web performance (or wanna be!) and like a great conference with a super friendly vibe then pop along to Amsterdam at the end of October. Tickets selling fast!
perfnow.nl
Reposted by Annie Sullivan
Exclusive: a Michigan Campaign Finance Act complaint has been filed against Ann Arbor's Library Green Conservancy. The complaint alleges LGC's advocacy against Props A & B violates state law limiting how 501(c)(3)s can engage in politics. Read more here: www.damnarbor.com/2025/07/excl...
#a2Council
#a2Council
Exclusive: Complaint filed against Ann Arbor's Library Green Conservancy for Michigan Campaign Finance Act violation
A screenshot of the complaint filed against the Library Green Conservancy Andrew Robins, a researcher at U of M, has filed a complaint a...
www.damnarbor.com
July 31, 2025 at 11:36 PM
Exclusive: a Michigan Campaign Finance Act complaint has been filed against Ann Arbor's Library Green Conservancy. The complaint alleges LGC's advocacy against Props A & B violates state law limiting how 501(c)(3)s can engage in politics. Read more here: www.damnarbor.com/2025/07/excl...
#a2Council
#a2Council