Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
apartments.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 13:22:04 UTC · ↺ Refresh
MX Hostnames
- costar-com.mail.protection.outlook.com
MX Priorities
- costar-com.mail.protection.outlook.com: 10
A / AAAA Records
- 23.208.34.109 ↩ a23-208-34-109.deploy.static.akamaitechnologies.com
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.costar.com hostmaster.costar.com 2026031007 10800 3600 604800 60
Primary NS (mname)
ns1.costar.com
Admin Email (rname)
hostmaster@costar.com
Serial
2026031007
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
60s
Nameservers (NS)
a9-64.akam.net
a4-66.akam.net
a22-64.akam.net
a6-67.akam.net
a1-73.akam.net
a3-65.akam.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:66.231.92.15 ip4:50.28.24.60 include:costar.com include:sendgrid.net ~all
📊 DNS lookups: 2/10
~ 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
33 records- pardot996072=c091476c7bca82c000e2271219016f0921e9a45c58333beb8e8fa49f28671a8b
- google-site-verification=CdfaOW5EN8TU-UrG37aDd28lT6pLXXkI4bP5OV4uOPc
- 780t66jsf2qt277tm40hhrr4mf
- ZOOM_verify_QAk3jcPUQNiCuuz2NmOEeA
- MS=ms58553701
- google-site-verification=reLNJiJK5KfKXzzcee7Y3hlZ73PZg5sdoj_hKy3ZsvE
- pardot493101=d798261be3ca1a2a535cb2fa4c30f36d1d81d96a1a0550c24a9c2ba15a907475
- docker-verification=cd506ccd-194c-45cc-ae11-5081bd7acb88
- 42AooJmfIgvX9KgOPQZlHVAsWSIIIhcxzpM6bc8yCaoiqqA10YQI8OM94BSxX2pzSqeVQADbY6OJI4kJhkvsJg==
- MS=ms17401908
- facebook-domain-verification=blzpc0q6mru30nvl1cwi7pixo7q954
- 31ALMRAhvem5Gg7q/bjQ/KJhokT/KfJ/ogegsNc1DTk7ZPEzJXjZHz5/lTTC78KDjpdMY3MjHloaHGEItZq/Pg==
- mpose1ilmcrr00r9pn1895jg5p
- _cnubl8n2zq6bvmvr4xiod8wm1hk2578
- figma-domain-verification=8232118525ac89d71aa3f807657ba9e5e26cfa8f711f2e3144c4c5c7fc2aec1e-1734372308
- openai-domain-verification=dv-JeqrQtGD0NY6bXFHkSGTFtt3
- logmein-verification-code=a1867f0b-e1e6-4c97-b274-e9dc582eaedc
- cut8t3r196sjr7fgsk307ra8o8
- google-site-verification=Tpn27Kak5cXTf7dW68tWaLkWP6urgnYfbkGsseuRDv0
- h3s61j4hmu97dbmm9l2vct9s83
- pardot996072=cb2f92a2e077cddab8fbb2625d44dfafe9f758bfa8a7b47118cd7d0ef166f9a4
- 41fbud3l7r86mqm81seu30gei
- spf2.0/pra ip4:65.222.180.0/24 ip4:65.210.120.0/24 ip4:65.200.12.0/24 ~all
- qr3uq5ks8rlqurppvsco8a0p09
- SPFv=spf1 ip4:66.231.92.15 ip4:50.28.24.60 include:costar.com include:sendgrid.net ~all
- google-site-verification=KAL0Nc2c9ul60rYQ_zIcihv6Ed_ZTHQFfnqklPOTEAw
- hodd31f155oqgiru8gikg8jl11
- atlassian-domain-verification=LAkz2FUxxMo9oBp9qlpKyMPkFQT3p7fXn2F/dz0S07Gt8LASUog19dNicOe7njFJ
- segment-site-verification=q0z1saoeZsvBPtFMTNitAqw8W7nJBTXC
- _tdkq9tvjbh9k2bl3z6dydxibfcvk0nh
- _2j4f57rzo6nut1kznqclkbmwmiyhqw2
- google-site-verification=CJktYhZSLS1FaKg_SKiGWqmx7AI6M29xKYWPuWkZXh0
- p7ss17s6g826fq4ukou3r35ctg
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