SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nw-architekten.de
SSL/TLS Certificate
SSL/TLS Certificate for nw-architekten.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- nw-architekten.de
- Valid from
- Jul 3, 2026
- Valid until
- Jan 17, 2027 (73 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 727C5D59187219B698F6612A5AA7E479
- SHA-256 fingerprint
- DB:23:AA:9B:40:DB:1A:AF:3A:F8:A2:07:9D:B3:08:9D:C7:F3:9A:44:61:FE:5A:D2:B9:9F:5F:95:43:89:F1:D6
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust 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 Oct 10, 2026.
Never get surprised by nw-architekten.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nw-architekten.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.