SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
swa-hamburg.org
SSL/TLS Certificate
SSL/TLS Certificate for swa-hamburg.org
Self-signed- Issued by (CA)
- swa-hamburg.org.df-503655.dummy
- Subject
- swa-hamburg.org.df-503655.dummy
- Valid from
- Dec 10, 2025
- Valid until
- Dec 10, 2026 (126 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 013D634691
- SHA-256 fingerprint
- 76:6C:95:BF:F5:7B:B3:1E:E5:D9:12:B9:AF:AC:99:29:B2:B2:EF:52:25:E8:72:BF:E4:71:E4:72:9B:57:D8:20
- Chain
- swa-hamburg.org.df-503655.dummy
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by swa-hamburg.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch swa-hamburg.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.
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