Limits RegistryPUBLIC RECORDLimits RegistryResearch Console →DNS-over-UDP historical message-size limit is 512 bytes under original RFC 1035 DNS over UDP. The historical limit excludes IP and UDP headers and predates EDNS.
The question, scope, and sources behind this Registry record.
Under original RFC 1035 DNS over UDP, what exact standards-defined value applies to DNS message length?
Current frontiers derived from accepted Claims.
The accepted equality closes this optimization result.
Assertions tied to evidence, attribution, and review.
The frontier as it changed over time.
Only accepted Claims matching the current specification contribute to the displayed bounds. Strict inequalities remain open; contradictory Claims require editorial review.