SSL/TLS Certificate Lookup

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

lukom-a.ro

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for lukom-a.ro

Valid
Issued by (CA)
Let's Encrypt
Subject
traun.ro
Valid from
Aug 28, 2026
Valid until
Nov 26, 2026 (38 days remaining)
Public key
RSA 4096-bit
Serial
05019B1E6C9297EBA60653400BC4EE279B4D
SHA-256 fingerprint
CC:1B:F8:33:58:F7:D1:71:BC:36:87:7F:D1:00:94:D0:5A:B7:E3:F8:2E:E2:35:40:32:B3:DC:79:17:AF:1E:2E
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (6)
*.traunguard.ro, lukom-a.ro, traun.ro, traunguard.ro, www.lukom-a.ro, www.traun.ro

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

Never get surprised by lukom-a.ro's certificate expiring

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

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.