SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
niedersachsen-it.de
SSL/TLS Certificate
SSL/TLS Certificate for niedersachsen-it.de
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- confixx.azhaldv12.niedersachsen-it.de
- Valid from
- Jul 30, 2026
- Valid until
- Oct 28, 2026 (88 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F602EA3F72FA8419193AB4F58C241A8678
- SHA-256 fingerprint
- 49:EB:5A:62:5B:79:72:AD:F2:F8:9A:6C:9F:E6:F5:71:3B:9C:A2:E0:99:BF:DB:57:D1:95:E0:65:C3:74:AE:EC
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by niedersachsen-it.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch niedersachsen-it.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.