Glossary · Delivery and rendering

Hydration mismatch

A difference between the server-rendered HTML and the DOM the client script produces. A fetcher reading only the first response records the server version, which may not be what any person saw.

Terms this definition uses

Rendered HTML

Delivery and rendering

What arrives on the wire, and what only exists after something else runs.

payload ratio · render dependence · render dependence gap · edge cache pinning · TTFB · Core Web Vitals · CrUX · field data · prompt injection · Dynamic rendering · DOM depth · Edge transformation · 202 interstitial · rate limiting · bot management platform

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