Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
costar.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 12:05:15 UTC · ↺ Refresh
MX Hostnames
- costar-com.mail.protection.outlook.com
MX Priorities
- costar-com.mail.protection.outlook.com: 10
A / AAAA Records
- 96.16.196.22 ↩ a96-16-196-22.deploy.static.akamaitechnologies.com
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.costar.com hostmaster.costar.com 2026032002 10800 3600 1209600 3600
Primary NS (mname)
ns1.costar.com
Admin Email (rname)
hostmaster@costar.com
Serial
2026032002
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
a4-66.akam.net
a3-65.akam.net
a22-64.akam.net
a6-67.akam.net
a1-73.akam.net
a9-64.akam.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:38.109.150.133 ip4:38.64.74.205 ip4:65.200.12.0/24 ip4:204.253.48.0/24 ip4:65.222.180.0/23 ip4:65.210.23.0/24 ip4:50.202.211.161 ip4:160.34.15.18 ip4:160.34.15.19 ip4:64.106.173.20 ip4:64.106.173.15 ip4:64.106.173.19 ip4:64.106.173.18 ip4:156.70.121.222 ip4:156.70.151.69 ip4:198.244.55.16 ip4:64.106.173.0/25 ip4:192.69.130.0/23 include:spf.mandrillapp.com include:amazonses.com include:spf.protection.outlook.com include:helpscoutemail.com include:spf_c.oraclecloud.com -all
📊 DNS lookups: 5/10
✓ 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
✓ 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
60 records- apple-domain-verification=3Hl7EZad01YToBh5
- zoho-verification=zb12043825.zmverify.zoho.com
- jamf-site-verification=QWSVWWA4w4y3SFU1kdygUg
- logmein-verification-code=c500c4a7-6682-4ec6-ab3f-bc3d76171809
- _tdkq9tvjbh9k2bl3z6dydxibfcvk0nh
- SFMC-OArIRZ64KVaZCjcyxWhZdRhjNiC9nYYtFPEvOMP8
- canva-site-verification=Kmo16jkO2-WjqzDGoE0acQ
- sending_domain1030241=b6ee5db66498bb0fdf5b7f1cd4b0c46d42d99fbe2bca3b920ffbae6f207361b6
- docker-verification=ef9b7765-4c24-45f5-8954-bbd7a03350e0
- pardot936613=1f9f0b029f18f80c6d6562ff5bedfde2a2700edfd856ca3aaf27143551c2cf16
- atlassian-domain-verification=LAkz2FUxxMo9oBp9qlpKyMPkFQT3p7fXn2F/dz0S07Gt8LASUog19dNicOe7njFJ
- pendo-domain-verification=7b6980df-a870-4f26-83fb-64115a303935
- uk5eC5UVfArThmqrcka1_WlhzQk8sXHCthcO8sseb8k
- MS=ms77657212
- atlassian-sending-domain-verification=09f967f5-912a-44ba-a84c-c386e6b534c0
- google-site-verification=a2XukE9v_rJumYMecgCt6PqTMDMJFf5plZThPacWxT4
- paloaltonetworks-site-verification=aede92cc0ebbab4a06c087effbdc5b2abae8f8f772cc92295961ee800022eb16
- logmein-verification-code=e04efccc-e7f2-4ba3-b4ee-0ff3ebcdf694
- docker-verification=4a705f7d-c11e-4aea-b874-2d1f0bc1ee22
- stripe-verification=31852AFD4697653A5503BFEA79C5829F187633A2847CCAA88BEE1CB145079956
- _jkosg4f5l7m4011lwqiyg4kvknppspy
- logmein-verification-code=6343f47d-66e6-420d-9d7e-00b416ceb76f
- VjJZWzI5TzrMtQD7aJ650kBVz1H0AEAlko83aqYlMWs=
- K4yoJEJ-JUHR0t2F6_WoqSDdE_5p8SWd4SCgX8eTwm8
- citrix-verification-code=42c6f62f-b974-4c3a-b70a-6428068290db
- 780t66jsf2qt277tm40hhrr4mf
- hodd31f155oqgiru8gikg8jl11
- segment-site-verification=B4D17fO1iOGJwRHpvxgLskQaG5hvSunB
- SFMC-QWOkVs09M8M0xNZ3LF4s_ICFTRYIQj789Xoj0HRu
- kiro-site-verification=528df5b9-065d-4b7b-931a-906cc269aa37
- SPFv=spf1 ip4:38.109.150.133 ip4:38.64.74.205 ip4:65.200.12.0/24 ip4:204.253.48.0/24 ip4:65.222.180.0/23 ip4:65.210.23.0/24 ip4:50.202.211.161 ip4:160.34.15.18 ip4:160.34.15.19 ip4:64.106.173.20 ip4:64.106.173.15 ip4:64.106.173.19 ip4:64.106.173.18 ip4:156.70.121.222 ip4:156.70.151.69 ip4:198.244.55.16 ip4:64.106.173.0/25 ip4:192.69.130.0/23 include:spf.mandrillapp.com include:amazonses.com include:spf.protection.outlook.com include:helpscoutemail.com include:spf_c.oraclecloud.com -all
- airtable-verification=d8829d6ff85e7cf8c37fb844b54c7115
- adobe-sign-verification=1d48bbfc701435de69aaa739f3760b3a
- facebook-domain-verification=gx1cs3gbyrsju4n0u8rnja67ki8kf9
- k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCnV0wUprMs0NuP7RPIYSVTlxzSwC9J6pr1J0b7ReaZtx+yCxZU7Ufc/TdGgIpgWDmQMv9wiX/jx2wxog2z6CT/cDl7qysuH6tEiTjIOp2eoSrdCTuI45EfHwCuAFSDDygz0ArZygI7CciYfTzbtiIF502hVjiazbdXD2dkRU0b+QIDAQAB
- 8niIaC4lkHKUdeF/qMfOiBO6ohbU5THo1O6NNTx1CfbVZBMuoZ5wUEBN0SlYFjAVdcUe4QCi4V8mEtwLzUyOEw==
- pexip-ms-tenant-domain-verification=318ce639-8a27-4b78-81ba-f4a17ff0481e
- stripe-verification=593EAB1A1F416307F649330A70E1B04850D64993B5A9D2252F6396BF4A99EED7
- figma-domain-verification=8232118525ac89d71aa3f807657ba9e5e26cfa8f711f2e3144c4c5c7fc2aec1e-1734372308
- cut8t3r196sjr7fgsk307ra8o8
- mongodb-site-verification=Jmlbij5w9fcnSpB2PXeaPULBsrGZcEW5
- anthropic-domain-verification-81c0ss=v2WPeZ9SSaxuDYpbugsxNJJ50
- 2edq73atnub1his6k6llktrm3a
- Ha0IA3PsZyDHzosXQ7tyJugLvW1hIJ0nbhFLwA-mgnk
- asv=ae6926660c4e673adcbc5b40d545cae3
- openai-domain-verification=dv-7hWxp0Ovvq5HToSHGpIreZIu
- box-domain-verification=020d25dcb4d7b7f9d799e33b10a7c3bd64370e394803e0086948701e56d2a7fc
- ZOOM_verify_rOvGIJUtTvG5kvufbSxFOA
- EcTZ1T4xJEF6F139XKM8dtBSSfWt3VSdHrJo7jGY+ig=
- onetrust-domain-verification=a7bac093f2524098b840a5cddfbfa64f
- cloudflare_dashboard_sso=70b89cc39f15b9e939fd74c1d1b1bdc2
- pardot1030241=deabbab9a4cedfbed5a5763ec087e4e8c8ee7ada173710ce3af9f1798af79de4
- MS=ms31196382
- onetrust-domain-verification=97a96971e65f467089b15999423fae35
- _o9i81f66vw13ol9clpglw0wgz5i0e8a
- wiz-domain-verification=5fd193874a07240b784f0a3fe229ae86677cbeb7873b06003060f611fcfb59bb
- _2j4f57rzo6nut1kznqclkbmwmiyhqw2
- 5rsuh1m8hp3v5a36vrnidt8sl9
- 67mtlu6fdae5354kdksdj9nsre
- RJ6AzQCcMr_CZxEc-76GKePx3xkUGA2oEDtMMhQwlw0
Full email verification for costar.com
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