[DNS] Expand negative caching troubleshooting section - #29833
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TownLake merged 2 commits intoApr 14, 2026
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* Add cache troubleshooting for login flows * Expand DNS troubleshooting guidance * Expand registrar transfer troubleshooting * Document Origin CA expiry alert limitation * Add Cloudflare One troubleshooting details * Add WAF rule interaction guidance * Document AWS route issue for 523 * Add HTTP/3 troubleshooting guidance * Fix link URL * WAF updates * Removed incorrect difference * Update phase-interactions.mdx (#29831) * [DNS] Expand negative caching troubleshooting section (#29833) * [DNS] Expand negative caching troubleshooting for newly created records * [DNS] Add dig example to check negative cache TTL --------- Co-authored-by: Dane Knecht <dane@cloudflare.com> Co-authored-by: Pedro Sousa <680496+pedrosousa@users.noreply.github.com> Co-authored-by: danielegm <74369360+danielegm@users.noreply.github.com> Co-authored-by: Hannes <105781579+hannes-cf@users.noreply.github.com>
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Summary
explanation of negative caching, links to purge public resolver caches, and
digcommands for debugging against authoritative nameservers
digexample showing how to check if a negative cache entry is active andhow long it will persist
Based on review suggestions from hannes-cf and colinbendell on Dane/support knowledge gaps - check with SRhea before approving #29782.