SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
paedagogische-hochschule-ludwigsburg.org
SSL/TLS Certificate
SSL/TLS Certificate for paedagogische-hochschule-ludwigsburg.org
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- www.ph-ludwigsburg.de
- Valid from
- Jul 14, 2022
- Valid until
- Jul 14, 2023 (expired 1105 days ago)
- Public key
- RSA 2048-bit
- Serial
- 7BD22DC853FFB5886F743316CF68E570
- SHA-256 fingerprint
- 3D:46:B2:18:EF:19:B4:EB:B6:07:6E:F6:B8:D4:03:24:38:0D:FD:12:79:10:10:97:94:8F:18:0D:CA:57:7D:E9
- Chain
- Sectigo RSA Organization Validation Secure Server CA → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by paedagogische-hochschule-ludwigsburg.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch paedagogische-hochschule-ludwigsburg.org 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.