SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sm-planet.net
SSL/TLS Certificate
SSL/TLS Certificate for sm-planet.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.sm-planet.net
- Valid from
- Jul 2, 2026
- Valid until
- Sep 30, 2026 (63 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0514C0F54491D5ACD0CEF4D226A39A1E2FBA
- SHA-256 fingerprint
- 35:32:4B:1C:1D:C6:3C:73:91:21:B9:96:73:3B:DB:C5:12:91:9F:8A:9A:A4:4B:32:2E:2D:C6:B1:F7:B9:6C:F8
- 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 sm-planet.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sm-planet.net 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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