SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
hs-augsburg.de
SSL/TLS Certificate
SSL/TLS Certificate for hs-augsburg.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- nightcrawler.rz.hs-augsburg.de
- Valid from
- Sep 7, 2026
- Valid until
- Mar 25, 2027 (141 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 7BAC1FC0B183AC3ADAA555CFCCD784CA
- SHA-256 fingerprint
- 8B:98:A4:90:17:07:45:BD:1D:F7:5B:98:95:70:94:74:91:1E:5F:C7:9F:C3:B2:0D:CF:3B:C6:7D:5D:0A:3A:1C
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Certificate Authority Authorization (CAA)
CAA restricts issuance to harica.gr, letsencrypt.org, pki.dfn.de, sectigo.com; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.
This certificate has been served since Oct 12, 2026.
Never get surprised by hs-augsburg.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch hs-augsburg.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, 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.