Observed arrival · 2026-10-21
Glitchmark checks sites across screen sizes
Glitchmark says it tests websites in real browsers at mobile, tablet, and desktop widths, then reports bugs with screenshots and suggested fixes.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Web builders checking responsive sites before release
- Worth noticing
- The example report tests at 390, 768, and 1440 pixels and ties each finding to a screen width and page element.
Field notes
The example report assigns findings a severity, screen width, and affected element, and includes a marked-up screenshot. Its sample fix prompt points to a file and line number, explains the narrow-screen grid issue, and shows a replacement class string. The homepage lists seven check categories and says checks run at 390, 768, and 1440 pixels; these are presented as product descriptions, not verified scan results.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue