SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
next-step.li
SSL/TLS Certificate
SSL/TLS Certificate for next-step.li
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- next-step.li
- Valid from
- Aug 17, 2026
- Valid until
- Nov 15, 2026 (58 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 061F3DFE089F752BA2C9E6DE83866149FB95
- SHA-256 fingerprint
- EF:8A:AA:0C:0B:19:41:1B:09:1B:2C:29:95:75:49:F6:C9:70:73:41:D8:E2:8A:7D:65:84:0E:4D:06:DB:0A:F2
- 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 next-step.li's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch next-step.li 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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