SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lj-design.org
SSL/TLS Certificate
SSL/TLS Certificate for lj-design.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.lj-design.ch
- Valid from
- Jul 7, 2026
- Valid until
- Oct 5, 2026 (75 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05AA221ADEA43E6D7F3F8021BCF2440E918D
- SHA-256 fingerprint
- 32:ED:EC:38:2B:7F:F5:9B:9B:99:4D:4C:BC:0A:F8:33:DD:3F:0B:14:66:17:AF:03:4E:2E:80:5D:B7:5E:40:F7
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
Never get surprised by lj-design.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch lj-design.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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