A page targets a query but the words searchers use for it are absent from the title element, the H1 and the first paragraph, appearing only later in the body or not at all. Lexical ranking functions such as BM25 and BM25F give the most weight to query terms in high value fields. Google has not confirmed BM25, but the US v. Google liability opinion confirms a Term Weighting signal exists, so this check measures a proxy, not the signal itself.
Why does core query terms missing from title, h1 and opening copy matter for AI search?
Lexical ranking functions such as BM25 and BM25F give the most weight to query terms in high value fields. Google has not confirmed BM25, but the US v. Google liability opinion confirms a Term Weighting signal exists, so this check measures a proxy, not the signal itself.
How do you fix it?
Rewrite the title, H1 and opening sentence to include the primary query terms in natural phrasing. Do not repeat them beyond that; saturation means repetition adds little.
How do you find it on your site?
- Export the top queries per landing page from Search Console for the last three months.
- Crawl the same pages and extract the title, H1 and first 100 words of main content.
- For each page, check whether the head terms of its top three queries appear in those fields, allowing for plurals.
- Flag pages where the primary query terms are missing from all three fields.
Which ranking and citation factors does it touch?
Written for the Okapi BM25 page (evidence: General theory). Google has not documented this system in a way a site can test directly, so this check measures a proxy for it, not the system itself.
What is the impact?
Direct for lexical retrieval, indirect for final ranking. Estimate only.
What is the evidence?
Robertson and Zaragoza (2009) on BM25 and BM25F; Judge Mehta's 2024 liability opinion naming a Term Weighting signal.
Sources
Frequently asked questions about core query terms missing from title, h1 and opening copy
What does "Core query terms missing from title, H1 and opening copy" mean?
A page targets a query but the words searchers use for it are absent from the title element, the H1 and the first paragraph, appearing only later in the body or not at all.
How do you fix core query terms missing from title, H1 and opening copy?
Rewrite the title, H1 and opening sentence to include the primary query terms in natural phrasing. Do not repeat them beyond that; saturation means repetition adds little.