WebPerf / WPO Tips

Useful information about Web Performance Optimisation and tips how to speed up your websites. #webperf #sitespeed
// tweets by @kamilhavlicek

[Chrome for Developers @ChromiumDev]

Learn how @QuintoAndar boosted conversions by 36% with an 80% INP reduction → https://t.co/9VnJaSBBeX

Prioritizing web performance with "Code Yellow," optimizing long tasks, and implementing robust governance delivered a significantly better UX!

[WebPerf / WPO Tips @WPOtips]

Very interesting article for everyone struggling with cookie banners impacting their #CoreWebVitals:

https://t.co/QgLdyByy3S

[DebugBear @DebugBear]

Cookie banners can cause web performance and Core Web Vitals issues.

Check out this new article to learn about different problems and what you can do about them.

https://t.co/N0RkKuuBbt

[WebPerf / WPO Tips @WPOtips]

🔖 Blogpost Tip: Bringing site speed metrics back to GA4 (by @thyng)

#googleanalytics #ga4 #webperf

[David Vallejo @thyng]

New blog post:

Performance Timing tracking on Google Analytics 4 ( Legacy Site Speed Reporting on Universal )

https://t.co/4y3rNQxNXy

[WebPerf / WPO Tips @WPOtips]

💡#Webperf TIP: Don't forget to make sure that common marketing parameters are included in your caching rules (fbclid, gclid, msclkid, utm_ parameters, etc.)

Otherwise the website might load significantly slower for users coming through your marketing campaigns!

#webperformance

[RUMvision - Page speed monitoring @suxbyrumvision]

This company had Facebook #ads running... but someone forgot to add fbclid to the #caching rules, ouch. 😬

Luckily we've spotted this right away with some #realusermonitoring

[WebPerf / WPO Tips @WPOtips]

📗 Some nice reading for the weekend: A new article from @gtmetrix about Slow TTFB issue and who to talk to about it - Developer or the Hosting Provider?
https://t.co/6T7GCOiE0Y #webperf

[WebPerf / WPO Tips @WPOtips]

What do you imagine when you see the job title "Web Performance Manager"?
A marketing job role, or rather something #webperf-related?

[WebPerf / WPO Tips @WPOtips]

💡#WebPerformance Tip! Scrollbars can cause unwanted layout shifts and influence the CLS metric.

You can fix that using the `scrollbar-gutter:stable` CSS property: https://t.co/JmWuLm2XeB

#cls #webperf #pagespeed

[Tim Vereecke @TimVereecke]

After implementing "scrollbar-gutter:stable" the amount of page-views with a layout shift dropped nicely!
#AimForZero #CLS #WebPerf

[WebPerf / WPO Tips @WPOtips]

📺 #WebPerf Video Recommendation for Sunday afternoon:

Maciek Palmowski (@palmiak_fp) made a very interesting interview with @HenriHelvetica about web performance and next steps in the web evolution. Including Q&A section at the end...

https://t.co/ay7DOdVcl2

[WebPerf / WPO Tips @WPOtips]

Or if you prefer to work with CLI - you can use directly the SVGO tool: https://t.co/bra33oqFI5

[WebPerf / WPO Tips @WPOtips]

💡#Webperf tip: Decrease the file size and complexity of your SVG files.
SVG Files (especially when exported from graphic editors) contain a lot of unnecessary metadata and elements that are not needed. You can use a tool called SVGOMG to minify them: https://t.co/ep6RunjYg5

[Dan Shappir @DanShappir]

Are you interested in #webperf and #CWV ? We've had several episodes on @JSJabber podcast discussing what they are, how they're measured, and how they impact #UX and #SEO. Here are the most relevant ones: 🧵➡️

[WebPerf / WPO Tips @WPOtips]

🔧 Great news! A new Performance Insights panel! #webperf

[Chrome DevTools @ChromeDevTools]

⚠️ Spoiler alert! A new Performance Insights panel is coming in Chrome Canary. 👀

It's experimental, so... give it a try and share with us your thoughts! https://t.co/b0KZcAr5im

[WebPerf / WPO Tips @WPOtips]

💡A great #webperf tip from @Steve8708:

[Steve (Builder.io) @Steve8708]

Performance tip: make your page load feel more instant by using priority hints to help the browser prioritize the most critical resources

More you can do with priority hints in 🧵:

[Simon Hearne @simonhearne]

Today's #WebPerf pro tip: don't lazy load LCP images! This one crept in on one of my client's sites, discovered because LCP started creeping up on a key template.

[WebPerf / WPO Tips @WPOtips]

📗 Great #webperf book tips:

[Joan León 🏞️⚡️ @nucliweb]

Books that have helped and continue to help me understand Web Performance 📚

#WebPerf #Performance #WPO #ImagePerf #PerfCrafters

🧵

[WebPerf / WPO Tips @WPOtips]

FYI: Core Web Vitals for error pages are not counted in the Chrome UX Report (CrUX):

[Annie Sullivan (@anniesullie.bsky.sociall) @anniesullie]

@blue2blond @KamilHavlicek @ChromeUXReport @philwalton 404 and other error pages are not counted. Here's the documentation on the code that does the filtering: https://t.co/0MdZWevfSE

[WebPerf / WPO Tips @WPOtips]

https://t.co/FOctQ6r4RV

[Catchpoint @Catchpoint]

Join the journey with us and @RealWebPageTest to see where we're headed next in #observability and #webperf.

We're hiring 👉 https://t.co/aCFBbiHSyk

#Catchpointer #CatchpointCrew #monitoring #hiring #career #winningteam

[WebPerf / WPO Tips @WPOtips]

Let's start a thread with #webperf related job opportunities:

[WebPerf / WPO Tips @WPOtips]

Does anyone know?

[Kamil Havlicek @KamilHavlicek]

Question about @ChromeUXReport: Are visits of 404 error pages included in the CWV metrics? For example, what if the 404 error page has an incredibly huge layout shift - will this be counted in the CLS metric?
#WebPerformance #PageSpeedInsights

[WebPerf / WPO Tips @WPOtips]

💡#Webperf tip/reminder: Monitor closely all the changes published in your Google Tag Manager and their influence on the web performance:

[Colin Bendell @colinbendell]

A Shopify merchant was struggling to explain why their daily lighthouse speed scores dropped 5 days ago, despite:
• NO code changes
• NO new apps

Can you spot when the marketing team made changes with Google Tag Manager?

Lesson: Marketing ships code changes too!