Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
loopnet.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 05:33:50 UTC · ↺ Refresh
MX Hostnames
- costar-com.mail.protection.outlook.com
MX Priorities
- costar-com.mail.protection.outlook.com: 10
A / AAAA Records
- 72.247.65.37 ↩ a72-247-65-37.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:485::29f7 ↩ g2600-141b-1c00-0485-0000-0000-0000-29f7.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:4a5::29f7
Mail Server IPs
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.costar.com webmaster.costar.com 2026011604 10800 3600 604800 86400
Primary NS (mname)
ns1.costar.com
Admin Email (rname)
webmaster@costar.com
Serial
2026011604
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
a3-65.akam.net
a4-66.akam.net
a9-64.akam.net
a6-67.akam.net
a1-73.akam.net
a22-64.akam.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:65.222.180.0/24 ip4:65.222.181.0/24 ip4:65.210.23.128/25 ip4:204.253.48.0/24 include:costar.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
8 records- google-site-verification=ZyByqJXIua4WIQ-cznVY_U8WCxx1cMPSULZjSYSeUBs
- MS=ms96486161
- _s2slr9rivuadd9djd5qmnsi6hd5c4yh
- 3rc0di5kvn36qafuct32dlmqit
- 7bvq4qvj0su15v331c9ok7hj12
- a56kkqbik84ujcaeoa8g9gnls2
- google-site-verification=atUraLerZ4LCKr6uy36M0HMyxxSf7N2CJxLkvfuX7E4
- SPFv=spf1 ip4:65.222.180.0/24 ip4:65.222.181.0/24 ip4:65.210.23.128/25 ip4:204.253.48.0/24 include:costar.com ~all
Full email verification for loopnet.ca
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits