#sitespeed
LightNews LightNews
infrequently.org
It's a minor footnote in the trail of prevarications and half-truths that follow React everywhere it goes, but it's pretty incredible that the poster children are *this* bad given 2024 devices and networks:

treo.sh/sitespeed/www.in…

treo.sh/sitespeed/www.ai…
November 25, 2024 at 5:00 PM
bearstech.com
sitespeed.io 40.0 : une refonte majeure pour l’analyse des performances web

👉 www.sitespeed.io/sit...

interface sitespeed
May 26, 2026 at 8:43 PM
csswizardry.com
It’s Treo! treo.sh/sitespeed/cs...
treo.sh
May 23, 2025 at 9:10 AM
henrihelvetica.bsky.social
📢 Yup. That's right. I'm back with #100DaysOfPerf. I'll share more about this tomorrow, but let's have fun again. 👂🏾 🔊 🙃

#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
March 4, 2025 at 1:08 AM
henrihelvetica.bsky.social
The Wes Bos video about the McMaster website performance *may* achieve 1M views by end of this week (currently at ~940k), if not by the 4th week. Just about web performance. Imagine that!

#ecommerce #webperformance #sitespeed #webperf #perfmatters #corewebvitals #pagespeed
November 11, 2024 at 4:49 AM
jeroenheijmans.nl
First #Fronteers presentation was by @karlijnlowik.bsky.social and @erwinhofman.bsky.social, about web performance and RUM!
Sketch notes with highlights of terms "SUX" ("Sitespeed User Experience"), "Work Together", "RUM", "Percentiles Matter", and a "Name and Shame List".
October 3, 2025 at 10:22 PM
tunetheweb.com
Great post from @erwinhofman.bsky.social on webperf Interop proposals:

www.rumvision.com/blog/interop...

Upvote your favourite ones to let us know which are important to you!
Interop 2026: Key APIs for sitespeed & RUM
Real User Monitoring
www.rumvision.com
September 18, 2025 at 9:29 AM
tammyeverts.com
There's a lot of slop out there, which is why my @speedcurve.com comrades and I decided to create this guide to web performance – written for humans by humans.

😀 Why #webperf & #ux matter
😀 Core Web Vitals
😀 Optimization techniques
😀 Metrics & charts

www.speedcurve.com/web-performa... #sitespeed
A purple-haired six-eyed but otherwise humanoid alien sitting on a park bunch and smiling while using a laptop.
February 27, 2025 at 6:35 PM
tammyeverts.com
RUM for all! 🍹

Being able to monitor real user experiences is more important than ever. And now it's easier than ever, with integrations like this new open-source SpeedCurve
#Magento module and our recent #Shopify RUM app.

#pagespeed #sitespeed #webperf #ux #corewebvitals
speedcurve.com SpeedCurve @speedcurve.com · Jun 19
We ❤️ great people building apps that empower other folks to use our tools! The new open‑source #Magento module – from Jesper Ingels and the team at Bluebird Day – lets you integrate our RUM into your Magento project in minutes – no coding required!

www.speedcurve.com/blog/real-us...

#corewebvitals
SpeedCurve | NEW! SpeedCurve RUM for your Magento projects
Integrate robust real user monitoring into your Magento project in minutes!
www.speedcurve.com
June 19, 2025 at 6:13 PM
rikeshno1.bsky.social
DM us 'CRO' for a free technical conversion audit of your website #ConversionOptimization #CRO #WebDevelopment #AustralianBusiness #DigitalMarketing #WebDesign #SEO #B2BMarketing #Ecommerce #WebPerformance #MarketingStrategy #BusinessGrowth #TechAustralia #SiteSpeed #UXDesign
July 20, 2026 at 10:47 AM
tammyeverts.com
How fast is fast enough? I'll be exploring this question in my #PerfNow keynote. I hope to see you there! And if you have your own thoughts on this question, I'd love to hear them!

#webperf #sitespeed #pagespeed #ux
perfnow.nl performance.now() conference @perfnow.nl · Sep 15
performance.now() is coming!

@tammyeverts.com asks a seemingly-simple question: How Fast Is Fast Enough? She'll touch on questions — ranging from neuroscience to business metrics — to get you thinking about how you create, measure, and report your performance goals.

perfnow.nl/speakers.htm...
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 15, 2025 at 9:40 PM
tammyeverts.com
Currently working on the March edition of Speed Matters, and it's a good one, chock full of #UX and #webperf goodness!

Join our 15K+ email subscribers (and browse the archive): www.speedcurve.com/newsletter/

Sign up for the LinkedIn edition: www.linkedin.com/newsletters/...

#sitespeed #pagespeed
SpeedCurve | Speed Matters Newsletter
Get great performance content – no filler! – delivered to your inbox every month.
www.speedcurve.com
March 11, 2025 at 5:35 PM
speedcurve.com
New to the world of web performance? Welcome! Here's everything you need to know to master website monitoring, analytics, and diagnostics. Learn how to deliver a fast, joyous experience to all your users.

www.speedcurve.com/web-performa...

#webperf #pagespeed #sitespeed #ux #corewebvitals
Cartoon-style illustration of a friendly, six-eyed humanoid alien sitting on a park bench while using a laptop.
August 19, 2025 at 7:05 PM
erwinhofman.bsky.social
@fronteers.bsky.social speaking gig is coming up soon (Oct 3rd), but first:

Visiting #MeetMagento Italy!

📍 happening in Rome
📅 Thursday September 25th
☕ Coffee break sponsored by RUMvision.com

Travelling with @karlijnlowik.bsky.social as she will be talking about #sitespeed, #RUM, #memes + more
September 18, 2025 at 7:09 PM
tammyeverts.com
Slow-loading pages could have 2X more impact on revenue than site outages. This post covers how to:

👉 Calculate losses due to site slowdowns
👉 Compare those losses to downtime losses
👉 Estimate lost customer lifetime value

www.speedcurve.com/blog/downtim...

#webperf #ux #sitespeed #pagespeed
Column chart showing the potential average revenue loss of $21,000 due to site outages compared to $41,000 for site slowdowns.
April 23, 2025 at 5:55 PM
tammyeverts.com
Have you ever asked yourself:

"Which should I invest in – synthetic *or* real user monitoring – to track the speed of my site?"

This article is for you.

www.speedcurve.com/web-performa...

#webperf #ux #sitespeed #pagespeed
Synthetic versus Real User Monitoring | SpeedCurve
Here are the pros and cons of synthetic and real user monitoring, and why you need both.
www.speedcurve.com
March 14, 2025 at 7:01 PM
tammyeverts.com
James and Per talked about my latest blog post (link below) about six things that slow down your site's UX and why you have no control over them, and I've honestly rarely felt like my work has been so thoroughly see. Thank you!

www.speedcurve.com/blog/six-thi... #webperf #ux #sitespeed #pagespeed
March 4, 2025 at 6:14 PM
erwinhofman.bsky.social
New with updated header with logo from github.com/web-platform... 😀

www.rumvision.com/blog/interop...
Interop 2026: Key APIs for sitespeed & RUM
Real User Monitoring
www.rumvision.com
September 18, 2025 at 12:23 PM
infrequently.org
Skeetdeck makes bsky usable. The base experience? Woof:

www.webpagetest.org/video/compar...

RUM data backs this up. Bsky is another React superfund site, and that's bad for growth:

treo.sh/sitespeed/bs...
www.webpagetest.org
November 23, 2024 at 3:20 PM
tammyeverts.com
If you have a #Shopify store and you want to monitor your site speed and how it affects metrics like Core Web Vitals, bounce rate, and conversions, this app is a game changer. Plus, there's no coding or developer time required to get started!

#webperf #ux #pagespeed #sitespeed #corewebvitals
sia.codes Sia Karamalegos @sia.codes · Jun 17
I was excited when @speedcurve.com reached out to me to build their #Shopify app - now it's easier to integrate full real-user performance data collection in Shopify storefronts and correlate that data with bounce rates and conversions.

Now you can see exactly how #webperf impacts your bottom line!
SpeedCurve | NEW! SpeedCurve RUM for your Shopify store
Track Core Web Vitals, identify performance issues, measure the impact of site speed on conversion rates, and stay ahead of page slowdowns – all with no coding required.
www.speedcurve.com
June 18, 2025 at 6:48 PM
tammyeverts.com
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 — along with 24 more holiday readiness tips!

#corewebvitals #webperf #ux #sitespeed #pagespeed
speedcurve.com SpeedCurve @speedcurve.com · Nov 18
🎄 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?

👉 How to get backend transparency from your CDN: www.speedcurve.com/blog/server-...

👉 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
dracos.co.uk
Alex Russell has written a long and interesting post about “frameworkism”/React etc: infrequently.org/2024/11/if-n...

I recommend you see how your website does in the real world with tools like:
• cruxvis.withgoogle.com
• treo.sh/sitespeed
• pagespeed.web.dev
If Not React, Then What? - Infrequently Noted
Frameworkism is now the dominant creed of today's frontend discourse, and it's bullshit. We owe it to ourselves and to our users to reject dogma and embrace engineering as a discipline that strives to...
infrequently.org
November 30, 2024 at 6:54 AM
tammyeverts.com
Calculating downtime loss is pretty simple: if your site averages $100K/hour in revenue and you suffer a 3-hour outage, you lost ~$300K.

Calculating loss due to #sitespeed is a bit trickier, but doable. Here's one formula you can use: www.speedcurve.com/blog/downtim...

#webperf #ux #pagespeed
SpeedCurve | Downtime vs slowtime: Which costs you more?
Page slowdowns can cause as much damage as downtime, hurting revenue, brand health, and permanent abandonment rate.
www.speedcurve.com
May 13, 2025 at 8:29 PM
machal.bsky.social
Web performance is about conversions, not just metrics. ⚡

Google measures #CoreWebVitals on real users, not machines. If your site feels slow to them, your business pays the price.

#CoreWebVitals #SiteSpeed
#WebPerf #SEO
January 8, 2026 at 9:48 AM