SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sas-ns.de
SSL/TLS Certificate
SSL/TLS Certificate for sas-ns.de
Self-signed- Issued by (CA)
- default ssl certifcate
- Subject
- default ssl certifcate
- Valid from
- Jun 16, 2022
- Valid until
- Jun 16, 2023 (expired 1137 days ago)
- Public key
- RSA 2048-bit
- Serial
- 62AAFE6B0004655D
- SHA-256 fingerprint
- 76:F7:9A:49:A4:84:A9:E3:72:D9:34:7C:38:48:80:8B:49:65:3A:88:77:93:00:86:89:71:4F:A4:4F:01:5B:76
- Chain
- default ssl certifcate
Certificate Authority Authorization (CAA)
CAA restricts issuance to letsencrypt.org; we couldn't map the serving CA (default ssl certifcate) to one of these identifiers.
Never get surprised by sas-ns.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sas-ns.de 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.