ipyellow

DNS propagation checker

Two resolver networks

Compare independent recursive resolver views to spot cached answers that have not converged.

Two fixed queries run concurrently with five-second deadlines and a two-minute comparison cache.

Choose a name and record typeThe comparison highlights agreement and divergence without pretending an unavailable resolver agrees.

What this comparison means

Cloudflare and Google operate independent globally distributed anycast resolvers. Different cached answers can indicate a rollout still converging, geo-aware DNS behavior, load balancing, or resolver policy—not necessarily a configuration error.

These results come from the IP Yellow server's route to each anycast network. They are resolver perspectives, not controlled probes physically located in named regions.

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