DEV Community

Web Performance

All things speed and scalability on the web.

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
Angular SSR renders your page for every visitor. Here is what that costs.

Angular SSR renders your page for every visitor. Here is what that costs.

Comments
5 min read
Your store weighs 1.7 MB and still takes 18 seconds: the number that matters is 364 requests

Your store weighs 1.7 MB and still takes 18 seconds: the number that matters is 364 requests

Comments
6 min read
What happens when you upload a PDF online

What happens when you upload a PDF online

1
Comments
7 min read
Your page weight is not a number, it's a range: 14 MB one visit, 55 MB the next

Your page weight is not a number, it's a range: 14 MB one visit, 55 MB the next

Comments
4 min read
Why your Wix site feels slow: 4.9 MB of HTML before a single image, and which half you can actually fix

Why your Wix site feels slow: 4.9 MB of HTML before a single image, and which half you can actually fix

Comments
5 min read
Four false positives in one evening: telling a broken web app from a broken measurement

Four false positives in one evening: telling a broken web app from a broken measurement

Comments
6 min read
A 4 MB logo drawn at 36 pixels: the two files that skipped the image optimiser

A 4 MB logo drawn at 36 pixels: the two files that skipped the image optimiser

Comments
4 min read
Your dropdown menu is 7 MB, and it ships on every page you have

Your dropdown menu is 7 MB, and it ships on every page you have

Comments
4 min read
Chrome is downloading your 22 MB mp4 while the 3.8 MB webm sits one line below

Chrome is downloading your 22 MB mp4 while the 3.8 MB webm sits one line below

Comments
4 min read
Stop Polling: Real-Time SSE Architecture in Next.js 📡

Stop Polling: Real-Time SSE Architecture in Next.js 📡

1
Comments 1
4 min read
Zero Latency UX: Optimistic UI in Next.js ⚡

Zero Latency UX: Optimistic UI in Next.js ⚡

Comments
4 min read
Is PageSpeed Insights a good reference for web page structure/performance?

Is PageSpeed Insights a good reference for web page structure/performance?

Comments 2
7 min read
Rendering Math Formulas When Your Content Has Two Different Pasts

Rendering Math Formulas When Your Content Has Two Different Pasts

Comments
3 min read
Progressive UI: Streaming & Suspense in Next.js ⚡

Progressive UI: Streaming & Suspense in Next.js ⚡

1
Comments
4 min read
How I cut a 1.1 GB image gallery to 30 MB without touching a single database row

How I cut a 1.1 GB image gallery to 30 MB without touching a single database row

Comments
5 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.