Bing.com Domain Trust Report
bing.com shows moderate health — Security Headers and Email Auth need attention. Review the breakdown below.
Registration & ownership
| Registrar | MarkMonitor Inc. |
| Registered | Jan 29, 1996 |
| Updated | Dec 29, 2025 |
| Expires | Jan 30, 2027 116d |
| Status | client delete prohibit.server delete prohibit. |
DNS records
| A | 150.171.27.10150.171.28.10 |
| AAAA | 2620:1ec:33:1::102620:1ec:33::10 |
| MX | bing-com.mail.protection.outlook.com (pri 10) |
| NS | ns1-204.azure-dns.comns2-204.azure-dns.netns3-204.azure-dns.orgns4-204.azure-dns.infodns1.p09.nsone.netdns2.p09.nsone.netdns3.p09.nsone.netdns4.p09.nsone.net |
| TXT | facebook-domain-verification=09yg8uzcfnqnlqekzsbwjxyy8rdck7google-site-verification=OkRY8R261shK5B8uEwvsFZp9nQ2gRoHavGlruok1azcgoogle-site-verification=SHuSHN0Hv3nwBI9So329KwfbQ7xLif64SRwcGSdWNAUv=msv1 t=6097A7EA-53F7-4028-BA76-6869CB284C54v=spf1 include:spf.protection.outlook.com -all |
| CAA | digicert.comglobalsign.commicrosoft.com |
Hosting & network
| IP address | 150.171.27.10150.171.28.10 |
| IPv6 | 2620:1ec:33:1::102620:1ec:33::10 |
| Nameservers | ns1-204.azure-dns.comns2-204.azure-dns.netns3-204.azure-dns.orgns4-204.azure-dns.infodns1.p09.nsone.netdns2.p09.nsone.netdns3.p09.nsone.netdns4.p09.nsone.net |
| Protocol | HTTPS HTTP/2 |
| IPv6 support | ENABLED |
SSL / TLS
Technology detected
30-day availability
Email authentication
Monitoring events
What we know about Bing.com
Bing.com has been registered for 30 years (since Jan 29, 1996), managed through MarkMonitor Inc., ranked #34 globally by Tranco, categorised as search & tech. Its current health score is 75/100 (grade C) — generally healthy but with some configuration gaps worth reviewing. As a major internet platform, its SSL certificate chain, DNS propagation, and email authentication practices are scrutinised by security researchers worldwide.
bing.com's security posture: SSL is valid (issued by Microsoft Corporation), expiring in 145 days; security headers are largely missing; no blacklist entries found.
SPF is configured, restricting which servers can send email as this domain. DMARC policy is set to "reject" — spoofed emails are rejected.
bing.com resolves to 2 IP addresses (150.171.27.10 and 1 more), IPv6 is enabled, DNS is managed through ns1-204.azure-dns.com and ns2-204.azure-dns.net (+6 more), email routed through 1 MX record.
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