SSL/TLS Certificate Lookup

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

sf-nett.no

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for sf-nett.no

Hostname mismatch
Issued by (CA)
GoDaddy.com
Subject
www.altibox.no
Valid from
Oct 30, 2026
Valid until
May 16, 2027 (183 days remaining)
Public key
RSA 4096-bit
Serial
F7BE98B7E5E9690D
SHA-256 fingerprint
AA:63:78:E2:EA:95:2A:74:3B:DF:A4:3C:D4:20:B0:57:A3:EA:C9:88:7F:01:89:23:D7:59:FE:76:20:1B:75:5A
Chain
GoDaddy TLS Intermediate CA DV - R1v1 → GoDaddy TLS Root CA - R1 → Go Daddy Root Certificate Authority - G2
Subject Alternative Names (16)
altibox.no, lyse.altibox.no, nte.altibox.no, www.altibox.no, www.bkkfiber.no, www.dabb.no, www.haugnett.no, www.hlkbb.no, www.kebas.no, www.kleppnett.no, www.lofotkraft.net, www.nenett.no, www.signalbox.no, www.sklbb.no, www.vabb.no, www.vkbb.no

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by sf-nett.no's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch sf-nett.no 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.