Building a full website with Claude or ChatGPT takes about 20 minutes now. Making one that doesn't scream "AI built this" takes considerably longer, and most people skip that second part.
The web is filling up with what's become known as "AI slop" - sites that look polished at first glance but fall apart the moment you start reading. The pattern is so consistent that experienced web users can identify these sites within seconds. If you're using AI tools to build websites or create content, knowing these red flags matters - because your visitors can spot them too.
The Visual Tells
AI-built sites share a remarkably uniform aesthetic. The hero section almost always features a gradient background (usually blue-to-purple) with a centered headline in large sans-serif font. There's a "Get Started" button that either links to nothing or loops back to the same page. The layout follows the exact same pattern: hero, three feature cards with icons, testimonials, pricing table, footer.
Stock-style AI-generated images are another instant tell. They have that specific smoothness - too-perfect lighting, slightly off proportions on hands and text, and a plastic quality to skin tones. When every image on a site has that same synthetic look, visitors notice.
The color palette is almost always one of three combinations: blue-purple gradient, dark mode with neon accents, or clean white with a single accent color. AI models default to these because they dominate the training data.
The Copy Problem
This is where AI slop gets really obvious. Look for these patterns:
- Filler sentences that say nothing. "We believe in delivering exceptional solutions that drive meaningful results" could describe literally any company on earth.
- Repetitive structure. Every feature description follows the same [adjective] + [noun] + "that helps you" + [verb] formula.
- Missing specifics. No real pricing, no actual team names, no concrete use cases. Just vague promises about "transforming your workflow."
- Hallucinated testimonials. Names like "Sarah M., Marketing Director" with quotes that all sound identical. No company names, no photos of real people, no links to verify.
- Perfect grammar with zero personality. Real human writing has quirks, opinions, and occasional rough edges. AI copy reads like it was written by a committee that agreed on everything.
The meta descriptions and page titles are often dead giveaways too. They tend to be unnaturally keyword-stuffed or follow identical patterns across every page.
How to Not Be That Site
The fix isn't to stop using AI for web development - it's genuinely useful for scaffolding and first drafts. The fix is to treat AI output as a starting point, not a finished product.
Replace every generic sentence with something specific to your actual business. Swap the gradient hero for a real photo or a simple solid color. Delete the fake testimonials entirely until you have real ones. Change the three-column feature grid to literally any other layout.
Most importantly, read your own site out loud. If any sentence could appear on a thousand other websites without anyone noticing, rewrite it or cut it. The bar for web content is dropping fast precisely because so many people publish AI first drafts without editing. That's actually an opportunity - a site with genuine, specific, human-touched content now stands out more than it did two years ago.
The irony of AI slop is that the tools themselves are capable of much better output. The problem isn't the AI. It's that people accept the first draft.