Unverified50% confidenceFactExact time
np标签依赖的前提NXDOMAIN等价于子域名不存在，在DNSSEC的复杂签名机制下并不总是成立
1
Sources
50%
Confidence
Long-term
Relevance
7/6/2026
First Seen
Sources
Why DMARC's NP Tag Conflicts with DNSSEC
hackernewshackernews7/5/2026
Related Claims
UnverifiedThe np tag was introduced after RFC 7489 via a DMARC working group proposal and is formally discussed in the draft-ietf-dmarc-dmarcbis specification.62% similarUnverifiedThe self-signed root certificate of a local proxy is not on Cursor's built-in certificate pinning list, and in strict verification mode Cursor throws a validation error during the TLS handshake.55% similar
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Stable URI
https://kongchang.com/claim/115162API
curl https://kongchang.com/api/v1/knowledge/claims/115162MCP
get_claim(id=115162)