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Watch any page's on-page SEO. Get an AI summary the moment titles, meta tags, headings or schema change. Know the moment a page's SEO changes — yours, a client's, or a competitor's. OnPageWatch monitors the on-page elements that actually move rankings: title tag, meta description, robots/noindex, canonical URL, H1/H2 headings, structured data (schema) types, word count and internal links. When something changes, you get a browser notification and an email with a plain-English AI summary of what happened and why it matters. WHAT IT CATCHES • A stray noindex quietly shipped during a redesign • A dev team overwriting your carefully written title tags • A competitor adding FAQ schema or retargeting a keyword • New pages published on a competitor's blog • Broken canonicals, vanished H1s, pages going down WHY IT'S DIFFERENT Pixel-watching tools alert you when a banner rotates. OnPageWatch compares only SEO-relevant fields, so every alert is worth reading — ranked high / medium / low severity, with before-and-after values. HOW IT WORKS Install → create a free account → open any page → click "Watch this page." Our servers check on a schedule (no impact on your browsing) and keep a change history per page. A "Check now" button gives instant re-checks. FREE to start: 3 watched pages, weekly checks. Pro ($9/mo): 30 pages, daily. Agency ($29/mo): 150 pages, every 12 hours. Built by an SEO practitioner who got burned by silent site changes one too many times.
Jul 17, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.