SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
icarus-urbansecurityrepository.org
SSL/TLS Certificate
SSL/TLS Certificate for icarus-urbansecurityrepository.org
Valid- Issued by (CA)
- SwissSign AG
- Subject
- www.icarus-urbansecurityrepository.org
- Valid from
- Sep 25, 2026
- Valid until
- Apr 11, 2027 (152 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 61A6A6636175DF40F6061B6C17DB1AA87CE1FD3D
- SHA-256 fingerprint
- B4:D9:18:D0:99:B6:DE:1B:55:11:9C:BF:E6:A2:78:01:05:3E:3A:8A:08:D6:46:7C:82:9B:17:48:51:26:1F:69
- Chain
- SwissSign RSA TLS OV ICA 2022 - 1 → SwissSign RSA TLS Root CA 2022 - 1
Certificate Authority Authorization (CAA)
CAA restricts issuance to swisssign.com; we couldn't map the serving CA (SwissSign AG) to one of these identifiers.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 30, 2026.
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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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