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Hey friends 👋 Let's make the web fast 🚀

We've got the easiest way to track your Core Web Vitals, understand real-user performance, and boost your PageSpeed.

Here's what our customers say: "I love Request Metrics! It gives me the easy real-time monitoring I need to improve my b Vitals."

It's easy to install and free for small sites. Ready blast off?

#webperf #perfmatters #corewebvitals #realusermonitoring
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Polymarket's CSP allowed every request that drained its users. The URL never changed, only the bytes.

Bundle our agent from npm or pin it with SRI.

requestmetrics.com/web-performanc…

#WebPerf #WebSecurity
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The starting point for web performance work is not a Lighthouse score.

It's your users. What are they experiencing, on which devices, on which pages.

Synthetic tests run in labs. Labs are not your users.

#WebPerformance #RUM
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Lighthouse tells you what a page can do. CrUX shows a slice. WebPageTest benchmarks a single run.

None of them show what your users are actually experiencing.

Eroan Boyer: "There is no choice. You have to use RUM."

#WebPerformance #RUM
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The dashboard was flat for weeks. Then LCP spiked.

That moment is exactly what weekly RUM monitoring is for. Not just knowing something changed, but being able to trace when, where, and why.

#CoreWebVitals #LCP
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Green across the board does not mean no problems. It means no problems on average.

Edge cases hide in the aggregate. Specific devices, referral sources, page groups.

Real user data is how you find them.

#WebPerformance #RUM
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🗓️ TODAY at 5:00 UTC

Our founder @toddhgardner shares his investigation into whether webperf actually matters for SEO in 2025.

Join the free online meetup at performanceobserver.dev
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The new Lab Scan email is 🔥

We automatically scan your busiest pages, rollup your scores and common issues from Mobile and Desktop, and show details from your slowest pages.

Why are you still manually scanning your website?
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Ever tapped a button and nothing happened? That’s a Long Animation Frame (LoAF) messing with your smooth experience.

LoAFs are the hidden lag spikes of the web! 🔥 Learn why they suck and how to fix them:
🔗 requestmetrics.com/web-performanc…

#webperf #perfmatters
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Picking the wrong image format kills performance! JPG for photos, PNG for graphics, WebP/AVIF for modern compression.

Choosing wisely cuts file sizes in half!

Full breakdown: requestmetrics.com/web-performanc…

#WebPerf #CoreWebVitals
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Vector images (SVG) scale infinitely, stay crisp at any size, and have tiny file sizes—perfect for icons, logos, and graphics. Ditch PNGs when you can!

Just don’t export a PNG as SVG—that’s cheating. 😉

Full breakdown here: 👉 requestmetrics.com/web-performanc…
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Request Metrics retweeted
Replying to @requestmetrics
@requestmetrics I discovered only yesterday how well RM tracks errors and sessions, this is amazing 🤩
I didn’t find a way to jump from an error to sessions containing this error, is that possible?
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