| Subdomain | First seen | Last seen | DNS | Certificate issuer | Report |
|---|
| mail.cantonwa.com | Jul 2023 | Jul 2025 | No DNS | ZeroSSL | Report → |
| www.cantonwa.com | Jul 2023 | Jul 2025 | — | ZeroSSL | Report → |
Found in public certificate transparency logs, which record every publicly trusted certificate. Some subdomains may no longer exist.