Tammy Everts π
@tammyeverts.com
I contain multitudes, but for brevity: reader, writer, speaker, baker, quilter, yoga-er, mom-joke teller, lover of lakes and mountains.
π«Ά Building #UX / #webperf / #o11y community at @embrace.io (which acquired @speedcurve.com)
π«Ά Co-chair of @perfnow.nl
π«Ά Building #UX / #webperf / #o11y community at @embrace.io (which acquired @speedcurve.com)
π«Ά Co-chair of @perfnow.nl
Pinned
Tammy Everts π
@tammyeverts.com
Β· Oct 29
If you want to know the real me, then you need to know that at any given time, roughly 10% of my processing power is revving on the subject of quilts and quilting. I typically have multiple projects in various states of completion. Here's a sampling of quilts I've finished over the past few years.
I β€οΈ writing these annual wrap-up posts. From broad browser support for key metrics to nuanced metrics for diagnosing issues, 2025 has been filled with huge wins β not just for @speedcurve.com but for our entire #webperf community. Go, us!
www.speedcurve.com/blog/2025-we...
www.speedcurve.com/blog/2025-we...
SpeedCurve | 2025 was a big year! Here are some highlights...
From broad browser support for key metrics to nuanced metrics for diagnosing issues, 2025 has been filled with wins.
www.speedcurve.com
December 18, 2025 at 10:29 PM
I β€οΈ writing these annual wrap-up posts. From broad browser support for key metrics to nuanced metrics for diagnosing issues, 2025 has been filled with huge wins β not just for @speedcurve.com but for our entire #webperf community. Go, us!
www.speedcurve.com/blog/2025-we...
www.speedcurve.com/blog/2025-we...
WKRP Turkey Drop
YouTube video by Brian Henigin
www.youtube.com
November 26, 2025 at 10:15 PM
If you only have time to do ONE THING to make your site holiday-ready (so you can relax and enjoy the next few days off) it's this: CREATE PERFORMANCE BUDGETS
π No code changes required
π Literally takes just 1-2 minutes
π You get alerts if your pages slow down
π www.speedcurve.com/web-performa...
π No code changes required
π Literally takes just 1-2 minutes
π You get alerts if your pages slow down
π www.speedcurve.com/web-performa...
November 25, 2025 at 7:56 PM
If you only have time to do ONE THING to make your site holiday-ready (so you can relax and enjoy the next few days off) it's this: CREATE PERFORMANCE BUDGETS
π No code changes required
π Literally takes just 1-2 minutes
π You get alerts if your pages slow down
π www.speedcurve.com/web-performa...
π No code changes required
π Literally takes just 1-2 minutes
π You get alerts if your pages slow down
π www.speedcurve.com/web-performa...
Reposted by Tammy Everts π
What happens when observability merges with front-end performance monitoring? You get the best of all worlds β performance, reliability, and UX across web and mobile!
Join our founder @markzeman.com, CPO @cliffcrocker.bsky.social, and @embrace.io President Andrew Tunall on December 9 to learn more!
Join our founder @markzeman.com, CPO @cliffcrocker.bsky.social, and @embrace.io President Andrew Tunall on December 9 to learn more!
π₯ Fireside chat: The future of user-focused #observability
With the Embrace + @speedcurve.com acquisition now live, hear whatβs ahead from Andrew Tunall, Mark Zeman, and Cliff Crocker.
π Dec 9 at 11 AM PST
π Save your seat β ow.ly/M6QQ50XvcB2
With the Embrace + @speedcurve.com acquisition now live, hear whatβs ahead from Andrew Tunall, Mark Zeman, and Cliff Crocker.
π Dec 9 at 11 AM PST
π Save your seat β ow.ly/M6QQ50XvcB2
Fireside chat: The future of user-focused observability with Embrace and SpeedCurve
In this fireside chat, learn about Embrace and newly acquired SpeedCurve's shared vision to connect technical performance in apps and sites to how users actually experience them.
ow.ly
November 24, 2025 at 8:29 PM
What happens when observability merges with front-end performance monitoring? You get the best of all worlds β performance, reliability, and UX across web and mobile!
Join our founder @markzeman.com, CPO @cliffcrocker.bsky.social, and @embrace.io President Andrew Tunall on December 9 to learn more!
Join our founder @markzeman.com, CPO @cliffcrocker.bsky.social, and @embrace.io President Andrew Tunall on December 9 to learn more!
Reposted by Tammy Everts π
It's been almost three years, but CrystalCon, the accessibility conference created from spite, is back. This January, I'm giving you six sessions of content over two days, all made by me. Given the current state of tech and digital accessibility, most sessions will focus on artificial intelligence.
November 20, 2025 at 8:48 PM
It's been almost three years, but CrystalCon, the accessibility conference created from spite, is back. This January, I'm giving you six sessions of content over two days, all made by me. Given the current state of tech and digital accessibility, most sessions will focus on artificial intelligence.
Thanks to all who joined me and @seancdavis.com for our #PixelPalooza fireside chat about how image optimization (and lack thereof) affects your users and your business! And thanks to @remotesynthesis.com for inviting me!
I put together some interesting stats here: speakerdeck.com/tammyeverts/...
I put together some interesting stats here: speakerdeck.com/tammyeverts/...
The Hidden Cost of Media on the Web [PixelPalooza 2025]
Images, video, audio and other media are a big part of what brings the web to life and visitors have come to expect a multimedia experience across the w…
speakerdeck.com
November 20, 2025 at 9:11 PM
Thanks to all who joined me and @seancdavis.com for our #PixelPalooza fireside chat about how image optimization (and lack thereof) affects your users and your business! And thanks to @remotesynthesis.com for inviting me!
I put together some interesting stats here: speakerdeck.com/tammyeverts/...
I put together some interesting stats here: speakerdeck.com/tammyeverts/...
Unoptimized images are STILL a common problem, and they hurt things like:
π #A11y
π #webperf and #UX metrics like LCP and CLS
π Conversions
π #SEO
π Sustainability
I'll be talking about this (and solutions!) today (12:15pm PT / 3:15pm ET) at #PixelPalooza.
Get your FREE ticket: lnkd.in/g_N8YFrs
π #A11y
π #webperf and #UX metrics like LCP and CLS
π Conversions
π #SEO
π Sustainability
I'll be talking about this (and solutions!) today (12:15pm PT / 3:15pm ET) at #PixelPalooza.
Get your FREE ticket: lnkd.in/g_N8YFrs
November 20, 2025 at 6:09 PM
Unoptimized images are STILL a common problem, and they hurt things like:
π #A11y
π #webperf and #UX metrics like LCP and CLS
π Conversions
π #SEO
π Sustainability
I'll be talking about this (and solutions!) today (12:15pm PT / 3:15pm ET) at #PixelPalooza.
Get your FREE ticket: lnkd.in/g_N8YFrs
π #A11y
π #webperf and #UX metrics like LCP and CLS
π Conversions
π #SEO
π Sustainability
I'll be talking about this (and solutions!) today (12:15pm PT / 3:15pm ET) at #PixelPalooza.
Get your FREE ticket: lnkd.in/g_N8YFrs
Third parties represent a MASSIVE potential single point of failure for your site.
1. AUDIT & remove unused tags
2. DEFER or load asynchronously
3. TRACK scripts & create #webperf budgets
4. KNOW your SLAs with vendors
5. CREATE a playbook for failures
π www.speedcurve.com/web-performa... #ux
1. AUDIT & remove unused tags
2. DEFER or load asynchronously
3. TRACK scripts & create #webperf budgets
4. KNOW your SLAs with vendors
5. CREATE a playbook for failures
π www.speedcurve.com/web-performa... #ux
Third-Party Web Performance | SpeedCurve
Ads, analytics, and social widgets can seriously hurt page speed. Find out how to measure and optimize the third parties on your pages.
www.speedcurve.com
November 19, 2025 at 9:12 PM
Third parties represent a MASSIVE potential single point of failure for your site.
1. AUDIT & remove unused tags
2. DEFER or load asynchronously
3. TRACK scripts & create #webperf budgets
4. KNOW your SLAs with vendors
5. CREATE a playbook for failures
π www.speedcurve.com/web-performa... #ux
1. AUDIT & remove unused tags
2. DEFER or load asynchronously
3. TRACK scripts & create #webperf budgets
4. KNOW your SLAs with vendors
5. CREATE a playbook for failures
π www.speedcurve.com/web-performa... #ux
If your backend times are slow, that hurts all your other key performance and UX metrics, including Core Web Vitals!
Find out how to track your CDN's health and get backend transparency β along with 24 more holiday readiness tips!
#corewebvitals #webperf #ux #sitespeed #pagespeed
Find out how to track your CDN's health and get backend transparency β along with 24 more holiday readiness tips!
#corewebvitals #webperf #ux #sitespeed #pagespeed
π Holiday Readiness Tip 7: Track your CDN!
CDN performance can be a black box. Did you know you can track CDN health using Server Timing headers?
π How to get backend transparency from your CDN: www.speedcurve.com/blog/server-...
π More holiday readiness tips: www.speedcurve.com/blog/holiday...
CDN performance can be a black box. Did you know you can track CDN health using Server Timing headers?
π How to get backend transparency from your CDN: www.speedcurve.com/blog/server-...
π More holiday readiness tips: www.speedcurve.com/blog/holiday...
SpeedCurve | 2025 Holiday Readiness Checklist (Page Speed Edition!)
25 things you can do to keep your site fast and your users happy through the holidays and beyond!
www.speedcurve.com
November 18, 2025 at 7:35 PM
If your backend times are slow, that hurts all your other key performance and UX metrics, including Core Web Vitals!
Find out how to track your CDN's health and get backend transparency β along with 24 more holiday readiness tips!
#corewebvitals #webperf #ux #sitespeed #pagespeed
Find out how to track your CDN's health and get backend transparency β along with 24 more holiday readiness tips!
#corewebvitals #webperf #ux #sitespeed #pagespeed
Reposted by Tammy Everts π
The "i" in "iPhone" stands for "inequality", late 2025 edition:
November 18, 2025 at 3:51 AM
The "i" in "iPhone" stands for "inequality", late 2025 edition:
#PixelPalooza is coming up this Thursday!
This awesome FREE online event covers how to make sure all those helpful images and videos on your site don't hurt #webperf and #a11y.
I'm joining @seancdavis.com to talk about the hidden cost of media on the web.
Get your ticket π cfe.dev/events/pixel...
This awesome FREE online event covers how to make sure all those helpful images and videos on your site don't hurt #webperf and #a11y.
I'm joining @seancdavis.com to talk about the hidden cost of media on the web.
Get your ticket π cfe.dev/events/pixel...
PixelPalooza 2025
PixelPalooza will explore all the best practices we, as developers, can leverage media like images, video, audio and documents across our sites and applications.
cfe.dev
November 17, 2025 at 9:57 PM
#PixelPalooza is coming up this Thursday!
This awesome FREE online event covers how to make sure all those helpful images and videos on your site don't hurt #webperf and #a11y.
I'm joining @seancdavis.com to talk about the hidden cost of media on the web.
Get your ticket π cfe.dev/events/pixel...
This awesome FREE online event covers how to make sure all those helpful images and videos on your site don't hurt #webperf and #a11y.
I'm joining @seancdavis.com to talk about the hidden cost of media on the web.
Get your ticket π cfe.dev/events/pixel...
Reposted by Tammy Everts π
β‘Featured posts this week:
β¨ AI assistance for performance: @matthiasrohmer.bsky.social
β¨ The Web Animation Performance: @citizenofnowhe.re
β¨ How Fast Is Fast Enough?: @tammyeverts.com
β¨ Performance is about people: @markzeman.com
π Special thanks to the authors!
#webperf
β¨ AI assistance for performance: @matthiasrohmer.bsky.social
β¨ The Web Animation Performance: @citizenofnowhe.re
β¨ How Fast Is Fast Enough?: @tammyeverts.com
β¨ Performance is about people: @markzeman.com
π Special thanks to the authors!
#webperf
November 16, 2025 at 2:15 PM
β‘Featured posts this week:
β¨ AI assistance for performance: @matthiasrohmer.bsky.social
β¨ The Web Animation Performance: @citizenofnowhe.re
β¨ How Fast Is Fast Enough?: @tammyeverts.com
β¨ Performance is about people: @markzeman.com
π Special thanks to the authors!
#webperf
β¨ AI assistance for performance: @matthiasrohmer.bsky.social
β¨ The Web Animation Performance: @citizenofnowhe.re
β¨ How Fast Is Fast Enough?: @tammyeverts.com
β¨ Performance is about people: @markzeman.com
π Special thanks to the authors!
#webperf
Video of my @perfnow.nl keynote is up! In this talk, I challenged the false choice between magic and pragmatism.
Don't settle for "fast enough". Instead, aim to create a user experience that's #pragmagical β blending user delight with measurable business impact.
conffab.com/presentation...
Don't settle for "fast enough". Instead, aim to create a user experience that's #pragmagical β blending user delight with measurable business impact.
conffab.com/presentation...
How Fast Is Fast Enough?
<p>It sounds like a simple question, but if youβve been working in performance long enough, you know the answer is far from straightforward. In this Day 1 keynote, Tammy asks questionsβfrom neuroscien...
conffab.com
November 14, 2025 at 12:10 AM
Video of my @perfnow.nl keynote is up! In this talk, I challenged the false choice between magic and pragmatism.
Don't settle for "fast enough". Instead, aim to create a user experience that's #pragmagical β blending user delight with measurable business impact.
conffab.com/presentation...
Don't settle for "fast enough". Instead, aim to create a user experience that's #pragmagical β blending user delight with measurable business impact.
conffab.com/presentation...
We're joining forces with @embrace.io!
Together we'll give you visibility into how users experience your site and your app, so you can create fast, seamless experiences everywhere! AND you'll be able to tie this back to user engagement and business metrics.
Stoked about this huge next step! π
Together we'll give you visibility into how users experience your site and your app, so you can create fast, seamless experiences everywhere! AND you'll be able to tie this back to user engagement and business metrics.
Stoked about this huge next step! π
SpeedCurve has been acquired by @embrace.io! Weβre combining forces to connect performance, reliability and UX across web and mobile apps.
And yes, our team and tools will remain the same. π
Our founder @markzeman.com shares how our 12-year journey led us here: www.speedcurve.com/blog/perform...
And yes, our team and tools will remain the same. π
Our founder @markzeman.com shares how our 12-year journey led us here: www.speedcurve.com/blog/perform...
November 12, 2025 at 11:09 PM
We're joining forces with @embrace.io!
Together we'll give you visibility into how users experience your site and your app, so you can create fast, seamless experiences everywhere! AND you'll be able to tie this back to user engagement and business metrics.
Stoked about this huge next step! π
Together we'll give you visibility into how users experience your site and your app, so you can create fast, seamless experiences everywhere! AND you'll be able to tie this back to user engagement and business metrics.
Stoked about this huge next step! π
I love heatmaps so much! They're the best way to get instant insight into where #webperf issues are lurking across your site.
Taking it even further, you also get breakdowns across dimensions like page label, browser, device, and location. *chef's kiss*
π www.speedcurve.com/blog/new-hea...
Taking it even further, you also get breakdowns across dimensions like page label, browser, device, and location. *chef's kiss*
π www.speedcurve.com/blog/new-hea...
SpeedCurve | NEW! Heatmaps now available on Favorites Dashboards
Weβve finally added heat maps to your Favorites (custom) dashboards β one of our most requested features ever! It feels great to finally make this available to everyone.
www.speedcurve.com
November 6, 2025 at 7:39 PM
I love heatmaps so much! They're the best way to get instant insight into where #webperf issues are lurking across your site.
Taking it even further, you also get breakdowns across dimensions like page label, browser, device, and location. *chef's kiss*
π www.speedcurve.com/blog/new-hea...
Taking it even further, you also get breakdowns across dimensions like page label, browser, device, and location. *chef's kiss*
π www.speedcurve.com/blog/new-hea...
Thereβs always a long overnight stopover in Vancouver, because the last flight to my regional airport only goes out once a day. Without it, the trip would βonlyβ be about 18 hours.
November 2, 2025 at 7:23 PM
Thereβs always a long overnight stopover in Vancouver, because the last flight to my regional airport only goes out once a day. Without it, the trip would βonlyβ be about 18 hours.
Yeah, that seems to have been slowly in the works for a few years now. Next year weβll need to let all our non-EU speakers know how to apply for their visa well in advance.
November 2, 2025 at 6:11 PM
Yeah, that seems to have been slowly in the works for a few years now. Next year weβll need to let all our non-EU speakers know how to apply for their visa well in advance.
No Wunderbars left, sadly. Very NOT-wunderbar!
November 2, 2025 at 5:46 PM
No Wunderbars left, sadly. Very NOT-wunderbar!
Itβs a great museum. I used to live in Vancouver, and I visited it often!
November 2, 2025 at 5:21 PM
Itβs a great museum. I used to live in Vancouver, and I visited it often!
Also, I hope Iβm never too old to get excited like a weird nerdy little kid about waking up at an airport hotel with this view of the tarmac.
November 2, 2025 at 4:41 PM
Also, I hope Iβm never too old to get excited like a weird nerdy little kid about waking up at an airport hotel with this view of the tarmac.
I know everyone has been avidly following my progress home from #PerfNow so Iβm happy to say that after 29.5 hours in airports and planes, only 2 more hours till I arrive home! π π π
And yes, if youβre wondering, the long haul in both directions is totally worth it!
And yes, if youβre wondering, the long haul in both directions is totally worth it!
November 2, 2025 at 4:38 PM
I know everyone has been avidly following my progress home from #PerfNow so Iβm happy to say that after 29.5 hours in airports and planes, only 2 more hours till I arrive home! π π π
And yes, if youβre wondering, the long haul in both directions is totally worth it!
And yes, if youβre wondering, the long haul in both directions is totally worth it!
Iβm on the final leg nowβ¦ sitting in Vancouver waiting to board my flight home. T-minus two hours!
November 2, 2025 at 4:32 PM
Iβm on the final leg nowβ¦ sitting in Vancouver waiting to board my flight home. T-minus two hours!
Same same! Iβve just landed in Toronto. Only 22 more hours to go!
November 1, 2025 at 8:02 PM
Same same! Iβve just landed in Toronto. Only 22 more hours to go!