Registered 23 years ago, listed on 1 blocklist, valid HTTPS, the site answered 200 in 538 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 207.207.17.80 |
|---|---|
| MX | 10 mail.kinnser.net |
| NS | pdns79.ultradns.biz pdns79.ultradns.com pdns79.ultradns.net pdns79.ultradns.org |
| TXT | 3vrpshnl033b3f2t0kv86zp1lbcpmsxb _07gw6vwaeof5190y44jqvvs9z0yrz5v _9vyvxygpi61w978kiaaof87ydkiqesk nqytmnd4c42qd2hlz521hfpm390rpgb0 whfz87kl688h2vqc8pcv2pb8f9xh8m9z v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all dtm-domain-verification=rLnr9EYUKYx1GOjBO5dyhj4KYvkhR4ulwNX4WXD4qxI |
| registrar | GoDaddy.com, LLC |
|---|---|
| registered | 2003-06-05 |
| expires | 2027-06-05 |
| last changed | 2026-06-06 |
| nameservers | pdns79.ultradns.biz pdns79.ultradns.com pdns79.ultradns.net pdns79.ultradns.org |
| status | client delete prohibited client renew prohibited client transfer prohibited client update prohibited |
| valid | yes |
|---|---|
| issuer | DigiCert Inc |
| covers | *.kinnser.net, kinnser.net |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all |
|---|---|
| DMARC | pass policy reject |
| DKIM | found: s1, s2 |
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 kinnser.net.
Reference: /llms.txt.
IPv6. Does kinnser.net work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch kinnser.net. 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