<b>This week in caching: warming the cache before users do</b>

<b>This week in caching: warming the cache before users do</b>
Cold caches after a deploy or purge cost you the worst TTFB of the day:
— <i>Sitemap-driven crawl warming</i> — replaying your sitemap.xml through the cache post-deploy so the first real visitor gets a HIT.
— <i>Prioritizing by traffic, not URL count</i> — warming your top 200 pages from analytics beats crawling all 50k.
— <i>Staggered warm vs big-bang</i> — why hammering your origin to warm everything at once just moves the outage.
— <i>Keeping warm: keep-alive crawlers</i> — lightweight pings that re-warm hot pages just before TTL.
Credits: the WP Rocket and Cloudflare cache-reserve docs.
Bookmark: the traffic-weighted warming approach — 80% of the benefit for 1% of the crawl.