Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bigblueswimschool.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:02:28 UTC · ↺ Refresh
MX Hostnames
- d354235a.ess.barracudanetworks.com
- d354235b.ess.barracudanetworks.com
MX Priorities
- d354235b.ess.barracudanetworks.com: 20
- d354235a.ess.barracudanetworks.com: 10
A / AAAA Records
- 52.85.31.43 ↩ server-52-85-31-43.jfk50.r.cloudfront.net
- 52.85.31.4 ↩ server-52-85-31-4.jfk50.r.cloudfront.net
- 52.85.31.97 ↩ server-52-85-31-97.jfk50.r.cloudfront.net
- 52.85.31.108 ↩ server-52-85-31-108.jfk50.r.cloudfront.net
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns-2007.awsdns-58.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-2007.awsdns-58.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-878.awsdns-45.net
ns-1166.awsdns-17.org
ns-2007.awsdns-58.co.uk
ns-40.awsdns-05.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:198.37.147.129 include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
13 records- klaviyo-site-verification=VjEpj3
- pinterest-site-verification=172a4a7a75f15414b2863ee95e9db87b
- postman-domain-verification=def2915231ccdd4ad8c7a109d0315cf2e35abec789eab0241e02906c0339991467943c31e8e78cf4114283982a36fdc5edb7eaa6f48913032ccad734a8d5928c
- SPFv=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:198.37.147.129 include:spf.ess.barracudanetworks.com -all
- 1password-site-verification=AS7JDS4Q75ATLHHEXZ7LUAS7EM
- MS=ms64171002
- SFMC-q8qUAeZHT3d0oPwOw1Be7mG2kv7eeadC5grp_pgN
- apple-domain-verification=kNf10wKtYS-wtF3ba49AX7OldzoW1OFWLNQgIGOFUOw
- apple-domain-verification=uY1qlha85r1OK7Cj
- atlassian-domain-verification=nY1MUgJjkVDmocqfaEnZi/2eIGpae/ATLbyxFxMQq20Tf0p1X7z1Ya/q3w1jRwOQ
- evidence-domain-verification-ke9z33=uqsm5Gq8nC7TQEDY3XYSWZPUF
- facebook-domain-verification=7frocxkbubj9nkm6bdym3be0e7ylvo
- google-site-verification=pHW72p-4mUb_u12_UDMQM8vZNqWyKMU1axsWye11ZM4
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