Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rubiconproject.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 04:50:17 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx3.googlemail.com
- aspmx2.googlemail.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 69.194.143.123 ↩ cust-69.194.143.123.switchnap.com
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 142.250.31.26 ↩ bj-in-f26.1e100.net
- 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
SOA Record
Raw SOA
ns-644.awsdns-16.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-644.awsdns-16.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-cloud-a4.googledomains.com
ns-cloud-a1.googledomains.com
ns-cloud-a2.googledomains.com
ns-cloud-a3.googledomains.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:72.34.113.100 ip4:69.194.143.140 include:spf.rubiconproject.com include:sendgrid.net include:_spf.google.com include:mktomail.com include:spf.mandrillapp.com include:aspmx.pardot.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=50; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 50% of failing messages only
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
9 records- apple-domain-verification=G4AVkC9r63d1Wgp7
- google-site-verification=8Oe3JXELIVSWdd5P6OY4UM5pF_aqaApPAbdvsIqjvtY
- slack-domain-verification=mlIG4ylJounirRIFXuVrwirxvgiAUa63gagbhqV0
- docusign=740bb1dc-f7a3-4027-b408-aed4bd2824d0
- SPFv=spf1 ip4:72.34.113.100 ip4:69.194.143.140 include:spf.rubiconproject.com include:sendgrid.net include:_spf.google.com include:mktomail.com include:spf.mandrillapp.com include:aspmx.pardot.com ~all
- logmein-domain-confirmation 90DIFG9EEUT8U8R48952255
- google-site-verification=U-FUvU0VS4falHBMujbJtZpgqy95I2EFC08ADvrqlSQ
- 00d700000008awveam
- adobe-idp-site-verification=7ba00fd005454fcba9ed31a7ad48786fef98ee97ccc28d469c180d51d3aa792b
Full email verification for rubiconproject.com
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