SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
so-what.com
SSL/TLS Certificate
SSL/TLS Certificate for so-what.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- so-what.com
- Valid from
- Nov 2, 2026
- Valid until
- Jan 31, 2027 (79 days remaining)
- Public key
- EC 256-bit
- Serial
- 05DF69E4406E6D03D15FD764ADCF237DA51B
- SHA-256 fingerprint
- C9:BE:56:2E:15:91:87:E7:38:C6:BB:6C:70:5E:79:73:51:3E:32:D7:FE:CC:AD:03:2D:64:96:48:A5:D6:5A:F7
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 so-what.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch so-what.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.