SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
smsc-sa.net
SSL/TLS Certificate
SSL/TLS Certificate for smsc-sa.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- smsc-sa.net
- Valid from
- Oct 5, 2026
- Valid until
- Jan 3, 2027 (80 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0501E6FEBD06D6AA233CFE722224E2EAA3EE
- SHA-256 fingerprint
- 3B:83:FA:5E:C2:7C:55:DE:85:12:0C:53:0C:BE:65:E2:68:87:B6:02:2C:2D:5C:90:0E:7E:32:9B:45:47:72:21
- 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.
This certificate has been served since Aug 26, 2026.
Never get surprised by smsc-sa.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch smsc-sa.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.