Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gcd.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 02:15:03 UTC · ↺ Refresh
MX Hostnames
- gcd-com.mail.protection.outlook.com
MX Priorities
- gcd-com.mail.protection.outlook.com: 0
A / AAAA Records
- 160.153.0.91 ↩ 91.0.153.160.host.secureserver.net
Mail Server IPs
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
a1-245.akam.net hostmaster.gcd.com 2020102651 3600 600 604800 300
Primary NS (mname)
a1-245.akam.net
Admin Email (rname)
hostmaster@gcd.com
Serial
2020102651
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
a8-67.akam.net
a20-65.akam.net
a9-67.akam.net
a6-66.akam.net
a1-245.akam.net
a11-64.akam.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.createsend.com include:6215687.spf05.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com include:_spf.createsend.com include:6215687.spf05.hubspotemail.net -all
- dropbox-domain-verification=pimrdb59l49e
Full email verification for gcd.com
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