SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
js-sicherheit.com
SSL/TLS Certificate
SSL/TLS Certificate for js-sicherheit.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- js-sicherheit.com
- Valid from
- Oct 1, 2026
- Valid until
- Apr 6, 2027 (142 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 18A7A6AFAEC573B8BF86C1AC62B536BE
- SHA-256 fingerprint
- 32:73:7D:D2:85:D3:7E:13:4B:EF:35:20:3D:DB:AE:C5:66:EC:8E:6F:7E:3D:2B:96:ED:B0:BF:3B:EE:FE:39:14
- 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.
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This is today's certificate. Turn on monitoring and we'll watch js-sicherheit.com 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.
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