@tammy@webperf.social
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tammy

@tammy@webperf.social

UX and web performance researcher, writer, and speaker. Advocate for a faster web and slower living. SpeedCurve CXO. performance.now() conference co-chair. O'Reilly author.

#UX #SEO #WebPerf #PerfNow #PerfMatters

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tammy, to UX
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If your site uses consent popups/banners (and it probably does), this post is a must-read. CMPs create huge web performance challenges, such as:

  1. Single point of failure
  2. Mask third-party issues
  3. Identify wrong LCP element
  4. Hurt CLS score
  5. Delay INP

https://www.speedcurve.com/blog/web-performance-cookie-consent/

tammy, to UX
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PERFORMANCE HERO • per-FAWR-muhns HEER-oh • A person who's made a huge contribution to the and community, without whom the web would be a sadder, slower place.

Celebrating this month's @speedcurve Performance Hero, Estela Franco (@guaca)!

https://www.speedcurve.com/blog/web-performance-hero-estela-franco/

tammy, to random
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Seven years since I jumped at the opportunity to work with @zeman and Steve Souders at @speedcurve!

These have been some of the most fun and rewarding years of my career. I've learned so much and have been so lucky to see our little work family grow to include Elena Kay, @cliff, @andydavies, Andy Biggs, @Joseph_Wynn, and @tkadlec. Looking forward to the next seven years – and beyond!

tammy, (edited ) to accessibility
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There's more to web performance than page speed. A performant, usable site needs to be:

⏱️ Fast
✋ Accessible

So happy to see my Complete Guide to Performance Budgets included in the latest issue of A11y Weekly, alongside some fantastic other resources!

https://a11yweekly.com/issue/394/

tammy, to UX
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What you can learn about the world's leading websites on @speedcurve's interactive Page Speed Benchmarks dashboard:

💡 Current & historic of top retail/media/travel sites in the US, EU, UK & Japan

💡 Filter by metric (including Core Web Vitals like LCP & CLS)

💡 Filter by fast desktop vs slow mobile

💡 Drill down for Lighthouse audits, waterfall charts & more!

https://app.speedcurve.com/benchmarks/europe/media/slow/largest-contentful-paint/

tammy, to random
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Wall-E (2008) looks like the bowling machine in The Big Lebowski (1998). Intentional or coincidental?

tammy, to random
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tammy, to UX
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PERFORMANCE HERO • per-FAWR-muhns HEER-oh • noun • A person who has made a huge contribution to the and community, without whom the web would be a sadder, slower place.

Celebrating our inaugural @speedcurve Performance Hero, @paulcalvano!

https://www.speedcurve.com/blog/web-performance-hero-paul-calvano/

tammy, to UX
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I'm brainstorming topics for a brand-new / conference talk. Tell me, folks... what burning questions/problems would you love to get answers for?

Bonus points for suggestions that are not about INP. 😉

tammy,
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@jpvincent Good to know! Thank you!

tammy, to random
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I can't remember the last time I read a novel in one sitting, but Prophet Song by Paul Lynch was impossible to put down. If any book should be made required reading in our current times, it's this one.

https://thebookerprizes.com/the-booker-library/books/prophet-song

tammy,
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@brucelawson It's so good. You're going to love it, Bruce.

tammy,
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@brucelawson Yikes. I can manage one bummer novel roughly every six months, so I'll look that one up in the fall.

tammy, to UX
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I had such a great time chatting with @grigs on the @cloudfour podcast! Among other things, we demystified Interaction to Next Paint – including what it does and does not measure. (It's a great metric, but it's definitely not one-size-fits-all!)

https://cloudfour.com/thinks/demystifying-googles-recent-switch-to-inp/

tammy, to UX
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Another great analysis from @cliff. If your site uses a consent management platform (CMP), it's probably messing with your performance metrics.

Cliff breaks down the five most common issues – which affect all three Core Web Vitals, among other things – and he also provides some helpful scripting workarounds.

https://www.speedcurve.com/blog/web-performance-cookie-consent/

tammy, to UX
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Putting the last touches on the next issue of the Speed Matters newsletter, going out next week. Shockingly, it includes content beyond INP! 😉

Browse the archive and join the 14K extremely smart and discerning folks on our subscriber list: https://www.speedcurve.com/newsletter/

tammy, to UX
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Your time is the most precious thing you have. When I talk to customers, one of the best things I hear is how much time they DON'T spend using @speedcurve:

"We actually don't log in much. We've set up performance budgets and deploy testing. We just wait to get alerts and then dive in to fix things."

Learn more about how to efficiently fight regressions in @tkadlec's excellent post: https://www.speedcurve.com/blog/continuous-web-performance/

tammy, to UX
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The best time to set up performance budgets was years ago. The next best time is today.

If you're not using budgets to fight page speed regressions, you're missing a vital tool in your / toolkit. Here's everything you need to get started.

https://www.speedcurve.com/blog/performance-budgets/

tammy, to UX
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Every year I revisit the topic of web performance budgets. Here's my updated guide, including:

✅ What are performance budgets?
✅ Why are they a crucial tool in fighting page speed regression?
✅ Best metrics to track
✅ Determining thresholds
✅ Pro tips

https://www.speedcurve.com/blog/performance-budgets/

tammy,
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@mrtnvh You're most welcome!

tammy, to UX
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One thing fast sites have in common: they use performance budgets to fight regressions and deliver a consistently fast experience to their users. Here's a VERY detailed guide that covers:

⭐ Budgets vs goals
⭐ Which metrics to track (including and beyond Core Web Vitals)
⭐ How to set thresholds
⭐ Getting stakeholder buy-in
⭐ Integrating budgets with your CI/CD process

https://www.speedcurve.com/blog/performance-budgets/

zachleat, to random
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the spiciest web performance leaderboard would rank saas company home pages making “blazingly fast”-esque claims 👀

tammy,
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@zachleat We track a bunch of tools similar to ours (or at least those that haven't blocked our test agents), and yeah, there are some surprising results.

tammy, to UX
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Now that the INP hoopla has died down, here's a must-read post about how to improve it.
@andydavies shares:

▶ How he helps people identify causes of poor INP
▶ Examples of common issues
▶ Approaches he uses to optimize INP

https://speedcurve.com/blog/debugging-interaction-to-next-paint-inp/

tammy, to UX
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"Putting up the appropriate guardrails to protect ourselves from regressions – then pairing that with a trail of breadcrumbs so that we can dive in and quickly identify what the source is when a regression occurs – are essential steps to ensure that when we make our sites fast, they stay that way."

Awesome post by @tkadlec, filled with high-level wisdom and ground-level best practices.

https://www.speedcurve.com/blog/continuous-web-performance/

tammy, to random
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Some day I want to organize a conference where everyone does a talk about their favourite thing to do outside their day job.

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