SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
happ-vpn.surf
SSL/TLS Certificate
SSL/TLS Certificate for happ-vpn.surf
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- test2origin.marusya.cc
- Valid from
- Nov 4, 2026
- Valid until
- Feb 2, 2027 (80 days remaining)
- Public key
- EC 256-bit
- Serial
- 068D90BB83DC51A7FEEDE201CFD0F40D9D82
- SHA-256 fingerprint
- 22:FF:A6:9B:1F:A1:37:32:D1:1F:D5:08:5B:EA:AE:F7:D4:3B:28:7B:54:7C:B8:49:1D:64:9D:BB:87:FC:BC:87
- Chain
- YE1 → 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 happ-vpn.surf's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch happ-vpn.surf 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.