On no blocklists we checked, valid HTTPS, the site answered 200 in 807 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 37.9.169.172 37.9.169.173 37.9.169.171 |
|---|---|
| AAAA | 2a00:4b40:1000:4:37:9:169:172 2a00:4b40:1000:4:37:9:169:171 2a00:4b40:1000:4:37:9:169:173 |
| MX | 10 mailin2.websupport.sk 5 mailin1.websupport.sk |
| NS | ns3.websupport.sk ns2.websupport.sk ns1.websupport.sk |
| TXT | google-site-verification=3AhFX8HwXouID9DxeC5fIn6zq3tIwY1TjMztIH_s1UU MS=E006C8D779336112F636B8773201E7B28680B86B amazonses:bfxBPJgE4vixZnXscm6n9/dTcm5Iy0zWxsVOvKHROj0= v=spf1 a mx include:_spf.websupport.sk include:spf.mandrillapp.com ip4:80.86.241.3 ip6:2a07:9144:0:100:80:86:241:3/64 -all |
| CAA | {'type': 'CAA', 'issue': 'sectigo.com', 'critical': 0} {'type': 'CAA', 'issue': 'usertrust.com', 'critical': 0} {'type': 'CAA', 'issue': 'letsencrypt.org', 'critical': 0} {'type': 'CAA', 'issue': 'amazon.com', 'critical': 0} |
| registrar | WEBS-0001 |
|---|---|
| status | clientTransferProhibited clientUpdateProhibited clientDeleteProhibited |
| valid | yes |
|---|---|
| issuer | Sectigo Limited |
| covers | *.websupport.sk, websupport.sk |
| protocol | TLSv1.3 |
Domain is properly signed — chain validated by an independent validating resolver
| SPF | pass v=spf1 a mx include:_spf.websupport.sk include:spf.mandrillapp.com ip4:80.86.241.3 ip6:2a07:9144:0:100:80:86:241:3/64 -all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: mail |
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 websupport.sk.
Reference: /llms.txt.
IPv6. Does websupport.sk work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch websupport.sk. 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