SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
freifunk-boenen.de
SSL/TLS Certificate
SSL/TLS Certificate for freifunk-boenen.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- freifunk-boenen.de
- Valid from
- Oct 27, 2026
- Valid until
- Jan 25, 2027 (70 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06BEA054F21748F7038467186DC6B694F667
- SHA-256 fingerprint
- 3D:0F:02:82:23:49:AC:81:B9:D6:C9:54:C3:37:CA:2D:4E:FC:03:F2:3B:24:E3:3F:5B:13:F7:4E:6F:39:8C:72
- Chain
- YR1 → 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 freifunk-boenen.de's certificate expiring
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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.
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