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 a-tex.no
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- a-tex.no
- Valid from
- Jul 18, 2026
- Valid until
- Oct 16, 2026 (13 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053A79E1822B4BDB1537EE07B592F72ECE43
- SHA-256 fingerprint
- AF:4C:33:1D:C4:44:5F:1C:4E:B3:35:04:8F:31:8A:9C:E1:4E:82:65:3E:BA:91:43:D5:BA:39:6A:29:3B:84:E8
- 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 20, 2026.
Never get surprised by a-tex.no's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch a-tex.no 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.