Registered 31 years ago, on no blocklists we checked, valid HTTPS, the site answered 200 in 129 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 150.171.28.10 150.171.27.10 |
|---|---|
| AAAA | 2620:1ec:33::10 2620:1ec:33:1::10 |
| MX | 10 bing-com.mail.protection.outlook.com |
| NS | dns4.p09.nsone.net dns1.p09.nsone.net ns2-204.azure-dns.net ns3-204.azure-dns.org dns2.p09.nsone.net dns3.p09.nsone.net ns1-204.azure-dns.com ns4-204.azure-dns.info |
| TXT | v=spf1 include:spf.protection.outlook.com -all facebook-domain-verification=09yg8uzcfnqnlqekzsbwjxyy8rdck7 google-site-verification=SHuSHN0Hv3nwBI9So329KwfbQ7xLif64SRwcGSdWNAU google-site-verification=OkRY8R261shK5B8uEwvsFZp9nQ2gRoHavGlruok1azc v=msv1 t=6097A7EA-53F7-4028-BA76-6869CB284C54 |
| CAA | {'type': 'CAA', 'issue': 'microsoft.com', 'critical': 0} {'type': 'CAA', 'issue': 'globalsign.com', 'critical': 0} {'type': 'CAA', 'issue': 'digicert.com', 'critical': 0} {'type': 'CAA', 'critical': 0, 'contactemail': 'caarecordaware@microsoft.com'} |
| registrar | MarkMonitor Inc. |
|---|---|
| registered | 1996-01-29 |
| expires | 2027-01-30 |
| last changed | 2025-12-29 |
| owner | Microsoft Corporation |
| nameservers | dns1.p09.nsone.net dns2.p09.nsone.net dns3.p09.nsone.net dns4.p09.nsone.net ns1-204.azure-dns.com ns2-204.azure-dns.net ns3-204.azure-dns.org ns4-204.azure-dns.info |
| status | client delete prohibited client transfer prohibited client update prohibited server delete prohibited server transfer prohibited server update prohibited |
| valid | yes |
|---|---|
| issuer | Microsoft Corporation |
| covers | *.platform.bing.com, *.bing.com, bing.com, ieonline.microsoft.com, *.api.bing.com, *.cn.bing.net, *.cn.bing.com, ssl-api.bing.com, *.api.bing.net, *.bingapis.com, feedback.microsoft.com, insertmedia.bing.office.net |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 include:spf.protection.outlook.com -all |
|---|---|
| DMARC | pass policy reject |
| 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 bing.com.
Reference: /llms.txt.
Watch bing.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