Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
manhattanprep.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 04:41:57 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- aspmx2.googlemail.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- aspmx3.googlemail.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
- 35.175.0.241 ↩ ec2-35-175-0-241.compute-1.amazonaws.com
- 18.214.115.217
- 18.208.56.230
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
SOA Record
Raw SOA
ns-1055.awsdns-03.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1055.awsdns-03.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-173.awsdns-21.com
ns-1978.awsdns-55.co.uk
ns-795.awsdns-35.net
ns-1055.awsdns-03.org
SPF Record
✓ Strict (-all)
v=spf1 include:_u.manhattanprep.com._spf.smart.ondmarc.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; ri=43200
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
google._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
6 records- Dynatrace-site-verification=237cf198-c196-4f32-b1fb-386891b42fa2__4thaku4kh0pvngf8437rc96kks
- atlassian-domain-verification=RtXv6uaEMMbRyleHa5jMbQmiUCVy0CxH4Qf3lF/s3fImwTlXN0Cda4AoqkamJwM2
- facebook-domain-verification=ehg00uynkag0ipen5xxnsl3fsgbhi7
- google-site-verification=pWw_VvL3US_GfyAFHJocYqsJdFWPmFpgAnlJomFUsU8
- SPFv=spf1 include:_u.manhattanprep.com._spf.smart.ondmarc.com -all
- 237cf198-c196-4f32-b1fb-386891b42fa2__4thaku4kh0pvngf8437rc96kks
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