Hashing Rendered HTML Would Re-Announce 426 Pages on Every Deploy, So IndexNow Hashes Page Data

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Munchable publishes 426 URLs generated from TypeScript modules, and a sitemap alone does not signal when content changes, so the IndexNow protocol is used to notify search engines. The main challenge is deciding which URLs to submit, since official guidance warns against resubmitting unchanged pages. Hashing rendered HTML fails because frameworks like Next.js embed a new build ID on every deploy, making all pages appear changed. Instead, each page's fingerprint is a hash of the underlying data it renders, such as a version constant for legal pages. Index pages hash only the fields they actually display, so changes to unrelated child details do not trigger unnecessary submissions.

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