Is there a browser compatibility checker for websites? (lemmy.world)

submitted 6 days ago by Maroon@lemmy.world to c/opensource@lemmy.ml

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I have made a website in simple HTML and CSS (no JS).

I hope it would be compatible with as many browsers as possible.

Is there a free and open source solution that can test and reveal the oldest version of each browser compatible with my site? I want to be able to say something like: This site is compatible with FF v60, Chromium v50, Safari vxx, etc.

Or make a compatibility table so users can know that this was tested.

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[-] PiraHxCx@lemmy.dbzer0.com 1 points 6 days ago* (last edited 6 days ago)

Hmm, I have a blink and a gecko browser on desktop and mobile, and open the site on both to check how it's being displayed :S

I hear a lot of people complaining about sites breaking on Firefox, but I never experienced that, only on secure forks that removed canvas, webgl and webgpu.

I have a few static sites as well and I use JS. The only thing I noticed changing, that can push elements weirdly, is scroll bars, buttons, the default audio player... but you can edit those with css to look similar on both browsers.

this post was submitted on 05 Jan 2026

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