DNSSEC analyzer

Walks the trust chain from root to leaf, validates every signature.

DNSSEC: SIGNED
Chain data found for github.com
Demo chain preview
DS / DNSKEY data available

Chain of trust

Each step's DS hash must match the child's DNSKEY. All signatures must validate.

Root zone (.)
DNSKEY · KSK 20326 · 4096-bit RSA · published 2017-10-11
VALID
.com TLD
DS 30909 · ECDSAP256SHA256 · matches root signature
VALID
github.com → DNSKEY
3 DNSKEY records observed
VALID
github.com → RRSIG (A, MX, TXT...)
11 RRSIG records observed
VALID
NSEC3 denial-of-existence
Salt: AB9F · 1 iteration · opt-out off
VALID
DS records
2
DNSKEY records
3
RRSIG records
11
Sig expires
6d 14h