SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for air-eiger.com

Valid
Issued by (CA)
Let's Encrypt
Subject
*.air-eiger.com
Valid from
Jul 31, 2026
Valid until
Oct 29, 2026 (37 days remaining)
Public key
RSA 2048-bit
Serial
06D0D2E208004FD69B3FC6447F3865AF511C
SHA-256 fingerprint
84:61:2B:CA:9A:A6:63:4C:C6:3B:6D:18:0F:87:26:07:26:C3:64:6E:AC:EE:68:BA:03:74:17:E9:93:CA:02:45
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.air-eiger.com, air-eiger.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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