Semantic Coherence: Seafood Watch โ€“ Signal Evidence & AI Readability

Seafood Watch

(https://seafoodwatch.org) ๐Ÿ“ธ Data Snapshot: June 19, 2026
Semantic Coherence โ€” The Lens

Pull the main entities out of the H1, then check whether they actually recur through the body. A page that announces one thing and then talks about another drifts. Headings with no real sentences underneath read as pseudo-substance.

Semantic Coherence Homepage promise vs. Sub-page reality.
7 Impact Weight: 20 / 100
35% Reputation

Maximum semantic drift is observed through omission; the homepage lacks an H1 and hero section, failing to deliver any signal for sub-pages to support. There is no cross-page messaging consistency to measure as only one page is provided, but the lack of a functional heading hierarchy (5 points) ensures that no logical story or value proposition is communicated to the user.

Semantic Coherence is read from the heading hierarchy first: what each page announces in its H1 and headings, then whether the body actually delivers on it. Below is the structure the engine mapped, followed by the clean text to check for drift between promise and reality.

๐Ÿ—๏ธ Semantic Structure โ€” heading hierarchy & page identity (the promise the page makes)
HOMEPAGE (https://seafoodwatch.org)
๐Ÿ“ The Narrative โ€” clean text per page (homepage promise vs. sub-page reality)
HOMEPAGE ยท THIN (https://seafoodwatch.org)
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