SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wits-it.com
SSL/TLS Certificate
SSL/TLS Certificate for wits-it.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- antonsmit.nl
- Valid from
- Oct 7, 2026
- Valid until
- Jan 5, 2027 (58 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0526B80046E51E483FFE0EE367CC8D116CE2
- SHA-256 fingerprint
- 2E:29:D0:27:E3:6E:F6:73:DC:D2:2F:80:6E:F1:B2:25:75:D9:B4:7D:2D:5B:2C:CD:AD:01:41:DC:A0:DE:F4:29
- Chain
- YR2 → 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 Sep 14, 2026.
Never get surprised by wits-it.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch wits-it.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.