The Telltale Signatures of LLM-Generated Writing and Web Design

A blogger documents recurring stylistic fingerprints that betray LLM-assisted output across both prose and web design. In writing, the giveaways go well beyond em-dashes: a compulsion for aphoristic punchlines, staccato runs of two or three short declarative sentences, the ‘X is the Y of Z’ construction, and the ‘not just X, it’s Y’ rhetorical pivot. The author noticed these patterns first in their own LLM-polished math blog, then watched the identical structures spread across the internet within months.

The same homogenization shows up in AI-generated websites. JetBrains Mono has become the default code font, paired with a recognizable visual vocabulary: numbered ‘step’ layouts, identical pill-shaped buttons, uniform card components, and a blinking-dot status badge that appears on landing page after landing page. The piece frames this not as an anti-AI argument but as an observation that model-assisted work converges on a narrow aesthetic, making AI involvement increasingly easy to spot once you know the tells.