Tag: Caching
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Magento TTFB: Varnish, Redis and the Backend Cost
Magento TTFB is the floor every other Core Web Vitals fix sits on: production mode, Varnish, Redis, database indexes, and the PHP work underneath them.
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Rolling out AVIF without breaking your CDN
AVIF CDN rollout done safely: one misconfigured Vary header corrupts the URL for every visitor. Vary first, convert a subset, then scale.