Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
foursquare.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 06:19:38 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx.l.google.com
MX Priorities
- aspmx3.googlemail.com: 30
- aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 20
- alt2.aspmx.l.google.com: 20
- aspmx2.googlemail.com: 30
A / AAAA Records
- 151.101.130.132 (no PTR)
- 151.101.2.132 (no PTR)
- 151.101.66.132
- 151.101.194.132
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.111.26 ↩ bk-in-f26.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
ns-1758.awsdns-27.co.uk hostmaster.foursquare.com 2012031201 7200 900 1209600 86400
Primary NS (mname)
ns-1758.awsdns-27.co.uk
Admin Email (rname)
hostmaster@foursquare.com
Serial
2012031201
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1013.awsdns-62.net
ns-1360.awsdns-42.org
ns-1758.awsdns-27.co.uk
ns-91.awsdns-11.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com include:mg-spf.greenhouse.io include:spf.tipalti.com exists:%{i}._spf.mta.salesforce.com ip4:199.38.176.0/22 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
18 records- pendo-domain-verification=1675bc1d-73c0-4353-bca0-c34afcb40655
- google-site-verification=xY5EWpfbSLTv9INagfm7yl91CQS9rqTmtcWDzdeh9ZI
- mixpanel-domain-verify=c40ce2af-3965-4146-8049-0b625a81b9b1
- DMARCv=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected];
- cursor-domain-verification-4sk5a7=XY3UPRnnlpUU8idlDUHZfVnqQ
- rippling-domain-verification=d1abfa491591ff04
- segment-site-verification=aKyxVCIqlVI3Dcjuca7fXJYvglTcLO9E
- docusign=c677b60e-d213-4c83-a2ea-8939ce46d114
- SPFv=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com include:mg-spf.greenhouse.io include:spf.tipalti.com exists:%{i}._spf.mta.salesforce.com ip4:199.38.176.0/22 -all
- openai-domain-verification=dv-HYfddEsOazWpFcmjumrDkUwC
- google-site-verification=MZDqZ6YFs43PB8rFIrsEMeH7FF16FBHS7PqB_-xfoxQ
- google-site-verification=k83L0vAR4o6gacvlkNSG70uIH33Ttvwk04eVOS7GNLs
- google-site-verification=xjx-CPcKxDmi1Qig1JfFEUGeuyooOI9h02nFPbgkAno
- google-site-verification=S8eMmX7gV97qABWx7R0eRpfzLXwdY895N-ABXbm758Y
- apple-domain-verification=K9xP4O3Kf2AWcoL6
- pardot_310041_*=1a0e9130a62c8fc831730aa8eecf70bee4ac763f893720f4c46998895a4c321c
- google-site-verification=VoTcCzdSA8qmNbg_CumbTrAGczCGq5f9LNjUgHctqzQ
- atlassian-domain-verification=nLNEa/3YX8+FCe4Er7wL2BjSgjDkzeS+Y1dJzIFh48F9oPFFygKek1Sg4Nzl0czw
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for foursquare.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits