Validexpires in 48d
Certificate
Issuer (CA)YR2↗Let's Encrypt⌕ reverse certs from this CA →
Subject (CN)vpn-ca.iad.github.com
ValidityJul 27 23:30:09 2026 GMT→Oct 25 23:30:08 2026 GMT· 48 d left
ValidationDV
Serial06989255C5ACEA21A3B3950F7B5DE29B07D1
KeyRSA · 2048-bit
SignatureSHA-256 with RSA
Fingerprint (SHA-256)067ef8ff16d8f838475e52b7a2e9c6580645b027ff9ea99db6d8be1b220ae7f1
SAN domains — covered by this certificate
vpn-ca.iad.github.com↗⌕ reverse by SAN →
Certificate Transparency (crt.sh)
Certificate Transparency logs unavailable right now (crt.sh).
Security (TLS)
ProtocolTLSv1.3
CipherTLS_AES_128_GCM_SHA256
HTTP protocolsHTTP/1.1HTTP/2HTTP/3
HSTSnot setno Strict-Transport-Security header
Chain
leafvpn-ca.iad.github.com← YR2
intermediateYR2← Root YR
intermediateRoot YR← ISRG Root X1
rootISRG Root X1
Same certificate — neighbour domains
No other domains share this certificate in our graph yet — this grows as domains are scanned.
host: vpn-ca.iad.github.comcollected just now↻ Refresh