Registered 17 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 333 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 212.42.73.103 |
|---|---|
| MX | 15 mx-wind.ukr.net |
| NS | dns1.fwdcdn.net dns2.fwdcdn.net dns3.fwdcdn.net dns4.fwdcdn.net |
| TXT | v=spf1 ~all ca3-b4634346db4b4651ba9c284a6bb5e1cc google-site-verification=q4-9Czx6-OI228L8XY5rQ1QsTXqZYV8mZC8MIc1gF-8 |
| CAA | {'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0} {'type': 'CAA', 'iodef': 'mailto:hostmaster@ukr.net', 'critical': 0} |
| registrar | Internet Invest LLC |
|---|---|
| registered | 2010-02-16 |
| expires | 2028-02-16 |
| last changed | 2026-06-15 |
| nameservers | dns1.fwdcdn.net dns2.fwdcdn.net dns3.fwdcdn.net dns4.fwdcdn.net |
| status | active |
| valid | yes |
|---|---|
| issuer | Sectigo Limited |
| covers | sinoptik.uk, en.sinoptik.pl, pinformer.sinoptik.ua, sinoptik.de, sinoptik.pl, sinoptik.ua, sinst.fwdcdn.com, ua.sinoptik.ua, www.sinoptik.de, www.sinoptik.pl, www.sinoptik.ua, www.sinoptik.uk |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 ~all |
|---|---|
| DMARC | none |
| DKIM | none of 1 common selectors |
Whether mail claiming to be from this domain can be checked as genuine.
Green: clean. Red: listed. Grey: the list did not answer.
Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on sinoptik.ua.
Reference: /llms.txt.
Watch sinoptik.ua. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.
Watch — $1 / 30 days