Registered 19 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 181 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.
| A | 3.170.3.81 3.170.3.15 3.170.3.16 3.170.3.28 |
|---|---|
| AAAA | 2600:9000:28dc:600:19:133b:2800:93a1 2600:9000:28dc:2e00:19:133b:2800:93a1 2600:9000:28dc:7600:19:133b:2800:93a1 2600:9000:28dc:ae00:19:133b:2800:93a1 2600:9000:28dc:4a00:19:133b:2800:93a1 2600:9000:28dc:1a00:19:133b:2800:93a1 2600:9000:28dc:a00:19:133b:2800:93a1 2600:9000:28dc:d200:19:133b:2800:93a1 |
| MX | 10 aspmx3.googlemail.com 10 aspmx2.googlemail.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 1 aspmx.l.google.com |
| NS | ns-483.awsdns-60.com ns-1150.awsdns-15.org ns-644.awsdns-16.net ns-1722.awsdns-23.co.uk |
| TXT | google-site-verification=U-FUvU0VS4falHBMujbJtZpgqy95I2EFC08ADvrqlSQ adobe-idp-site-verification=7ba00fd005454fcba9ed31a7ad48786fef98ee97ccc28d469c180d51d3aa792b apple-domain-verification=G4AVkC9r63d1Wgp7 docusign=740bb1dc-f7a3-4027-b408-aed4bd2824d0 google-site-verification=8Oe3JXELIVSWdd5P6OY4UM5pF_aqaApPAbdvsIqjvtY 00d700000008awveam v=spf1 ip4:72.34.113.100 ip4:69.194.143.140 include:spf.rubiconproject.com include:sendgrid.net include:_spf.google.com include:mktomail.com include:spf.mandrillapp.com include:aspmx.pardot.com ~all slack-domain-verification=mlIG4ylJounirRIFXuVrwirxvgiAUa63gagbhqV0 logmein-domain-confirmation 90DIFG9EEUT8U8R48952255 |
| registrar | GoDaddy.com, LLC |
|---|---|
| registered | 2007-05-02 |
| expires | 2027-05-02 |
| last changed | 2026-05-02 |
| nameservers | ns-1150.awsdns-15.org ns-1722.awsdns-23.co.uk ns-483.awsdns-60.com ns-644.awsdns-16.net ns-cloud-a1.googledomains.com ns-cloud-a2.googledomains.com ns-cloud-a3.googledomains.com ns-cloud-a4.googledomains.com |
| status | client delete prohibited client renew prohibited client transfer prohibited client update prohibited |
| valid | yes |
|---|---|
| issuer | Amazon |
| covers | rubiconproject.com |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 ip4:72.34.113.100 ip4:69.194.143.140 include:spf.rubiconproject.com include:sendgrid.net include:_spf.google.com include:mktomail.com include:spf.mandrillapp.com include:aspmx.pardot.com ~all |
|---|---|
| DMARC | warning policy quarantine |
| DKIM | found: google, 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 rubiconproject.com.
Reference: /llms.txt.
Watch rubiconproject.com. 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