Registered 24 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 207 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 85.236.105.135 |
|---|---|
| MX | 10 ALT4.ASPMX.L.GOOGLE.com 10 ALT3.ASPMX.L.GOOGLE.com 5 ALT1.ASPMX.L.GOOGLE.com 1 ASPMX.L.GOOGLE.com 5 ALT2.ASPMX.L.GOOGLE.com |
| NS | ns2-bos.vivox.com ns4-bos.vivox.com ns3-bos.vivox.com ns6-se.vivox.com ns2-1-bos.vivox.com ns5-eu.vivox.com |
| TXT | _21kbcxl1pharla1xhwgye4e6cj9nty0 v=spf1 mx a:mailrelay-viv0use2-1202.vivox.com a:vir2oa.vivox.com a:mx5oa.vivox.com a:mx5ob.vivox.com a:mail.zendesk.com include:_spf.google.com ip4:54.14.37.159 include:mail.zendesk.com include:sendgrid.net include:mercerrd.com ~all google-site-verification=yt6tDkG1SqeOn5e7n-Q4qzdL9o7xXrMeIT0dylvA20k |
| registrar | MarkMonitor Inc. |
|---|---|
| registered | 2003-01-17 |
| expires | 2027-01-17 |
| last changed | 2025-09-08 |
| owner | REDACTED FOR PRIVACY |
| nameservers | ns2-1-bos.vivox.com ns2-bos.vivox.com ns3-bos.vivox.com ns4-bos.vivox.com ns5-eu.vivox.com ns6-se.vivox.com |
| status | client delete prohibited client transfer prohibited client update prohibited |
| valid | yes |
|---|---|
| issuer | DigiCert Inc |
| covers | *.vivox.com, vivox.com |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 mx a:mailrelay-viv0use2-1202.vivox.com a:vir2oa.vivox.com a:mx5oa.vivox.com a:mx5ob.vivox.com a:mail.zendesk.com include:_spf.google.com ip4:54.14.37.159 include:mail.zendesk.com include:sendgrid.net include:mercerrd.com ~all |
|---|---|
| DMARC | none |
| 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 vivox.com.
Reference: /llms.txt.
IPv6. Does vivox.com work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch vivox.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