Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
headarena.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 01:46:56 UTC · ↺ Refresh
MX Hostnames
- headarena-com.mail.protection.outlook.com
MX Priorities
- headarena-com.mail.protection.outlook.com: 0
A / AAAA Records
- 109.228.52.82 ↩ dcr-plxsvr.qguae.com
Mail Server IPs
- 52.101.147.1 ↩ mail-au1p273cu00101.inbound.protection.outlook.com
- 52.101.148.13 ↩ mail-dx2p273cu00205.inbound.protection.outlook.com
- 52.101.148.3 ↩ mail-dx3p273cu00103.inbound.protection.outlook.com
- 52.101.148.1 ↩ mail-dx1p273cu00301.inbound.protection.outlook.com
- 2a01:111:f403:cc2f:: ↩ mail-au1p273cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc30::1 ↩ mail-dx3p273cu00101.inbound.protection.outlook.com
- 2a01:111:f403:cc30::3 ↩ mail-dx2p273cu00203.inbound.protection.outlook.com
- 2a01:111:f403:cc30:: ↩ mail-dx1p273cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.a1.net domainadmin.a1.net 2023100203 10800 3600 1814400 3600
Primary NS (mname)
dns1.a1.net
Admin Email (rname)
domainadmin@a1.net
Serial
2023100203
Refresh
10800s
Retry
3600s
Expire
1814400s
Minimum TTL
3600s
Nameservers (NS)
dns1.a1.net
dns3.a1.net
dns2.a1.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=03E2D60B7DE899C355803530B7C6FBE29E19AE30
- MS=ms69141413
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