Mark Williams-CookDirector, Candour · SEO and AI expert

QueryClassifier.com is a free tool based on Google exploit data #seo

9 Jun 2026 · 0 min

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A team that found a major Google search exploit built QueryClassifier.com, a free tool that predicts which of eight semantic classes Google assigns to any query. Input a search term and see what content type and SERP layout Google expects for it, trained on nearly five million queries.

In 2024, our team disclosed one of the largest ever Google search exploits that they paid us over $13,000 for closing. One of the things we discovered is that Google classifies almost all queries into one of 8 refined query semantic classes. QueryClassifier.com is a free tool I made trained on almost 5 million of these queries. You can just type in any search term you like, press classify, and it'll accurately predict how Google will classify these terms, letting you know what content Google expects and what SERP you can expect to see.