SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
xarxa-omnia.org
SSL/TLS Certificate
SSL/TLS Certificate for xarxa-omnia.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- xarxaomnia.gencat.cat
- Valid from
- Oct 8, 2026
- Valid until
- Jan 6, 2027 (83 days remaining)
- Public key
- EC 256-bit
- Serial
- 050A28DA56EBD31F240D8DE6E475A1989721
- SHA-256 fingerprint
- 2D:B4:92:38:EF:BD:58:91:39:32:F1:45:CF:E9:88:3D:42:98:45:6C:1B:CD:4F:65:DE:1C:95:D5:88:64:B9:CA
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 26, 2026.
Never get surprised by xarxa-omnia.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch xarxa-omnia.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.