SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lofar-se.org
SSL/TLS Certificate
SSL/TLS Certificate for lofar-se.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- lofar-se.org
- Valid from
- Aug 31, 2026
- Valid until
- Nov 29, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06381CB319667E5AA91487081B505289D205
- SHA-256 fingerprint
- 19:97:B5:8B:19:0C:B8:4F:AD:A3:8C:36:36:89:C8:B7:9B:17:A1:2D:F0:22:89:EB:E6:32:4E:E6:33:D7:F4:68
- Chain
- YR1 → Root YR → ISRG Root X1
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 Sep 24, 2026.
Never get surprised by lofar-se.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lofar-se.org 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.