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Slop Check by NightMarquee
See if your site looks AI-made, and what to change
2 followers
See if your site looks AI-made, and what to change
2 followers
Paste a link. The check opens your page in a real browser at desktop and phone width and scores it out of 100. It looks for the patterns that make sites look generated: overused fonts, glows, gradient text, bouncy motion, cards inside cards. Each problem comes with how to fix it, and one prompt holds every fix to paste into Lovable, Bolt, Cursor, Claude or Codex. Free, no account, no email. Publish your result to the public board, or keep it private.
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Hi, I'm Ant.
I build NightMarquee, a library of website prompts for Lovable, Bolt, Cursor, Claude and Codex on my own.
The slop check started as a tool for myself. Every demo in the library has to pass Paul Bakaus's open-source Impeccable detector before it ships, and I wanted the same test for any page, not only mine. So I put it on a page where you paste a link.
What it does: it opens your page in a real browser at 1280px and 390px wide and looks for the patterns that make a site read as generated. Overused fonts, purple gradients, glowing buttons, gradient text, bouncy easing, cards inside cards. You get a score out of 100 and a card for every pattern it found, with why it matters and how to fix it. "Copy all fixes" gives you one prompt to paste back into the tool you built with. Contrast, spacing and broken scripts get their own design quality score, so they never drag the headline number down.
It's free, with no account and no email. Your result goes on the public board only if you leave the box ticked. If you own a site that someone else published, you can verify it and hide it.
What it isn't: a 100 doesn't mean your site is well designed, only that none of the known generic patterns showed up. It checks one page at a time, the one you paste. I run the detector unmodified, so its rules are the rules.
I used it on the homepages of recent YC startups and wrote up what came out: the YC report.
I'll be here all day. Tell me where the score feels wrong. Those are the reports I learn the most from.
Ant