The phrases that give away AI-written website copy

AI-written website copy has a recognisable voice. When someone asks an AI app builder for a landing page, the builder asks a language model for the words, and language models reach for the same phrases again and again. Read enough vibe coded sites and you start to hear it: everything is elevated, unlocked and seamless.

Kitsuvo's detector counts these phrases as one signal among many. This guide shares the list we use, explains why a single phrase proves nothing, and shows what a fair reading looks like.

The phrases

These phrases turn up far more often in text written by language models than in text written by people. Kitsuvo's detector matches them as whole words:

• Lift and transformation: elevate your, transform your, take your … to the next level, next-level, supercharge
• Unlocking: unlock your, unlock the power, harness the power, unleash
• Smoothness: seamless, seamlessly, effortlessly, streamline, intuitive
• Novelty: cutting-edge, revolutionize, game-changer, like never before, built for the future
• Openers: in today's fast-paced, whether you're, look no further, say goodbye to
• Filler adjectives and verbs: stunning, robust, leverage, empower, delve, tapestry
• Self-description: AI-powered, all-in-one, at your fingertips, designed to help, your journey

Put a few together and you get a sentence like this one, which no person has ever needed: Unlock your creativity with stunning designs and seamlessly elevate your brand to the next level.

Placeholders: the stronger tell

Phrases are a matter of taste. Placeholders are a matter of fact: someone shipped a template without filling it in. Look for:

• Testimonials from John Doe, Jane Doe or Jane Smith
• Lorem ipsum anywhere on the page
• Your Company, Company Name or Acme in the footer
• Contact details like 123 Main Street, hello@example.com or (555) 123-4567
• A copyright year a year or two out of date on a site that otherwise looks brand new
• Round, unsourced claims such as 10,000+ happy customers on a business that launched last month

A placeholder doesn't prove AI was involved, since human templates have them too, but on a site that also carries a builder fingerprint, it fills in the story: generated, published, never edited.

Why one phrase proves nothing

Copywriters wrote cutting-edge and seamless long before chatbots existed; language models learned these phrases from them. A single hit is noise. What separates AI-written copy is density: several of these phrases per paragraph, across every section of the page, in copy that otherwise says little about the actual business.

That is how Kitsuvo weighs it. It ignores fewer than three hits, counts the rest per thousand words, and caps how much the wording can add to the score. Copy can nudge a score up; the code and the hosting decide it.

Patterns beyond single phrases

• Triplets. Lists of exactly three benefits, three adjectives, three cards: Fast, secure, and reliable.
• Headline formula. A verb, a noun, a promise: Build faster. Ship smarter. Grow bigger.
• Vague specifics. Lots of adjectives and no prices, names, opening hours or places.
• Same voice everywhere. The about page, the FAQ and the privacy policy all sound like the hero section.

Why not just use an AI text detector?

Text detectors try to judge authorship from wording alone, and they are unreliable on exactly this kind of text: short, formulaic and edited. Researchers at Stanford found popular detectors flagged most essays by non-native English writers as AI-generated. Website copy is shorter and more formulaic than an essay. The study and OpenAI's withdrawn detector are covered in are AI content detectors accurate?

Build evidence doesn't have that problem. A Lovable runtime script in the source is there or it isn't. Use the wording to support what the code says, as described in how to tell if a website was made with AI, not as the verdict.

If you write website copy

If you used AI to draft your site and want it to sound like you, a quick pass helps: replace each phrase above with something specific to your business, cut adjectives that could describe any company, and add facts only you know, such as prices, names, places and how long you have been doing this. Readers trust specifics, and search engines increasingly reward pages that show first-hand knowledge.

We hold ourselves to the same rule. Every post on this blog is checked against the phrase list above before it is published.