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 gdansk-airport.pl

Valid
Issued by (CA)
Let's Encrypt
Subject
gdansk-airport.pl
Valid from
Aug 2, 2026
Valid until
Oct 31, 2026 (81 days remaining)
Public key
RSA 2048-bit
Serial
052242D00ED200D6D17B5DAB1C12059BF95B
SHA-256 fingerprint
19:B6:A8:57:4E:6F:3B:F1:CC:11:07:9C:2B:7D:C0:CD:7D:1B:B1:46:78:1E:D0:C9:50:AB:EB:97:F1:44:BA:8E
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
gdansk-airport.pl, www.gdansk-airport.pl

Certificate Authority Authorization (CAA)

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

This certificate has been served since Jul 29, 2026.

Never get surprised by gdansk-airport.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gdansk-airport.pl continuously, notifying you the moment anything moves across all three signals:

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.