Mark Zeman

Founder @SpeedCurve, Hopeful idealist. I've moved to BlueSky.

[Mark Zeman @MarkZeman]

This place is 💩. You can find me here... https://t.co/RBRG10jobP

[Tammy Everts @tameverts]

Real user data is great. Actionable real user data is better!

Great post from @tkadlec showing how to make more meaningful, intuitive attributions for your RUM metrics (including Core Web Vitals) – making it easier for you to home in on #webperf issues.

https://t.co/hwJXt1Rmgi

[Tammy Everts @tameverts]

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

Celebrating this month's @SpeedCurve Performance Hero, Michelle Vu (@micvu)!

https://t.co/Yzwfws1kMI

[Tammy Everts @tameverts]

Our customers often tell us how much they appreciate the user-friendliness of the articles we create for them. So we recently decided to make them available to everyone (not just @SpeedCurve users). Introducing the Web Performance Guide!

https://t.co/EbqnXHHbTI #ux #webperf

[SpeedCurve @SpeedCurve]

The takeaway: Don't just look at the numbers for your performance metrics. Visually validate them to make sure they're measuring the right things!

#webperf #ux #sitespeed #pagespeed #corewebvitals

[SpeedCurve @SpeedCurve]

NEW: Our latest release includes RUM attribution and subparts for INP! @cliffcrocker explains:

🟡 Element attribution
🟢 Where time is spent within INP, leveraging subparts
🔴 How to use this information to fix INP issues

https://t.co/EWAXiNIZ30 #corewebvitals #webperf #ux

[SpeedCurve @SpeedCurve]

NEW! You asked and we delivered more capabilities for on-demand testing. This how-to post covers:

🟡 Scheduled vs on-demand tests
🟡 Run on-demand tests for site or custom URL
🟡 View & compare test details
🟡 Group tests as a deploy

https://t.co/mjHwppqaIc #webperf #sitespeed

[SpeedCurve @SpeedCurve]

Site speed isn’t something you fix once and walk away from. @tkadlec offers pro tips on how to set up continuous monitoring – as part of your CI/CD process – so you can fight regressions and stay fast.

https://t.co/Rjsf3aGTxQ #webperf #sitespeed #pagespeed #cicd

[Tim Kadlec @tkadlec]

👀 Well hello there! @SpeedCurve

[Mark Zeman @MarkZeman]

Awesome to see tangible and detailed examples of tracking down INP issues from @AndyDavies, the guru of web perf debugging. Get yourself ready for INP becoming a Core Web Vital in a few weeks... https://t.co/NVSlGPvA6T

[Tim Kadlec @tkadlec]

Kind of snuck under the radar, but love that @speedcurve has navigation types as a filter now. Extremely useful!!

[Tammy Everts @tameverts]

If you're using Akamai, Amazon Cloudfront, Cloudflare, Fastly, or Shopify, this post is a must-read. Among other things, @cliffcrocker provides clear examples of how you can use server-timing headers to get more visibility into your CDN.

https://t.co/ypa6ejVuyF #webperf

[Mark Zeman @MarkZeman]

Backend or Frontend? Which 🔥 do you put out first?

[SpeedCurve @SpeedCurve]

Backend time can have a big impact on Largest Contentful Paint and other metrics. @cliffcrocker explains how to use server-timing headers to find out what's happening inside the black box of Time to First Byte.

https://t.co/jZLdjguOTL #webperf #pagespeed #corewebvitals

[Mark Zeman @MarkZeman]

Welcome to the perf gang Tim!

[Tim Kadlec @tkadlec]

Super excited to be joining the @SpeedCurve team and working alongside folks I've called friends for a long time!

[Mark Zeman @MarkZeman]

INP is coming in March. Get your house in order now!

[SpeedCurve @SpeedCurve]

So your Interaction to Next Paint (INP) time is slow. What do you do next? @cliffcrocker explains how to triangulate on the troublesome interaction elements on your pages.

https://t.co/P711LiUK1N #webperf #ux #corewebvitals

[Mark Zeman @MarkZeman]

Good things are happening! https://t.co/xMI8YWyedX

[SpeedCurve @SpeedCurve]

In his latest post, @Joseph_Wynn shows how you can use our new @GitHub integration to get #webperf feedback for your code changes directly in the environment you are working in – so you can fight regressions and keep your pages fast!

https://t.co/XmLV39DczG #ux #cicd

[Mark Zeman @MarkZeman]

@WebTwitr @tameverts @SpeedCurve Yep, we added it earlier this year. Be great to see more folks using it!

[SpeedCurve @SpeedCurve]

We now offer great consulting to go with our great tools! Our amazing team of #webperf and #ux experts will help you make your site faster, your users happier, and your business more successful.

Find the right consulting package for you: https://t.co/w6Rl3AUOxO #corewebvitals

[Mark Zeman @MarkZeman]

Is INP any better than FID?

[SpeedCurve @SpeedCurve]

Now that INP has arrived to dethrone FID as the #CoreWebVitals responsiveness metric, it's time to scrutinize its effectiveness. @cliffcrocker looks at real-world data and asks: What correlation does INP have with #UX and business metrics?
https://t.co/clgnjiVAEp #webperf