SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
journalisten-n.com
SSL/TLS Certificate
SSL/TLS Certificate for journalisten-n.com
Expired- Issued by (CA)
- COMODO CA Limited
- Subject
- www.expertise-nachhaltigkeit.de
- Valid from
- Apr 12, 2018
- Valid until
- Jul 11, 2019 (expired 2676 days ago)
- Public key
- RSA 2048-bit
- Serial
- 79DDBD4C1D9A3FF52F8AA1151DCD10A3
- SHA-256 fingerprint
- 12:D7:76:87:CD:63:95:A7:70:E9:A3:C8:9D:86:71:B1:AF:D1:6E:19:FF:89:A2:B9:9A:C6:D4:E7:50:E4:8E:F0
- Chain
- COMODO RSA Domain Validation Secure Server CA → COMODO RSA Certification Authority
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 Sep 28, 2026.
Never get surprised by journalisten-n.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch journalisten-n.com 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.