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 bt-as.no
Valid- Issued by (CA)
- Google Trust Services
- Subject
- bt-as.no
- Valid from
- Oct 30, 2026
- Valid until
- Jan 28, 2027 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 250FC85830C3F7E9117C88DE205A964C
- SHA-256 fingerprint
- 71:32:10:76:00:75:68:DD:92:7B:43:87:66:15:52:5B:AF:93:24:4D:4C:1F:FD:21:21:D7:FE:3D:86:2E:9A:33
- Chain
- WR1 → GTS Root R1
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 Oct 27, 2026.
Never get surprised by bt-as.no's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch bt-as.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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.