After spending two weeks debugging issues that only showed up in production — a sitemap _redirects rule that was blocking my own sitemap-index.xml and a Bluesky image upload race against Cloudflare Pages deploy lag — I added three post-deploy checks to my workflow. They're fast and specific to the failure modes I've actually hit, not a full end-to-end test suite. Three sites (aiappdex.com, findindiegame.com, ossfind.com) on Cloudflare Pages with Astro 5 SSG. Here's what I check. Check 1: Sitemap