Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
redbrain.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:56:16 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- aspmx2.googlemail.com
- alt1.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 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
- 2800:3f0:4003:c0f::1a (no PTR)
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.63.26 ↩ bi-in-f26.1e100.net
- 2607:f8b0:4004:c23::1a ↩ yuiadrs-in-f26.1e100.net
SOA Record
Raw SOA
ns-cloud-d1.googledomains.com cloud-dns-hostmaster.google.com 1 21600 3600 259200 300
Primary NS (mname)
ns-cloud-d1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
1
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-d4.googledomains.com
ns-cloud-d3.googledomains.com
ns-cloud-d1.googledomains.com
ns-cloud-d2.googledomains.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:spf.eu.exclaimer.net include:_spf.salesforce.com include:sendgrid.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → 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
8 records- DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDKRHmR7gvuJJCZFBsa+Br3D7AYokJfIBuOk/mc7aAFfogSMkS1Sm5xg2t2CUSLAjMZI20PUViFrDxPnHOhlKD5USE0g/wg9WBa7i9FoF9Gs0IxPLhEFSmiTg+eK9/sI3Y03SaS5BfeKDAK3ZXZIqJDQXeJTZFN1O0RvAEsGOBEBwIDAQAB
- pardot696543=778b531174137c3aeada93a9a9bc99bb4651aa88d0062fb6de0c0313427f9971
- SPFv=spf1 include:_spf.google.com include:spf.eu.exclaimer.net include:_spf.salesforce.com include:sendgrid.net ~all
- google-site-verification=2F0M8UcsHTKKwKVGFYi6zPEaAM-978o-4uz9V2h72kQ
- facebook-domain-verification=9q96j64g4cntd6caarpdsa596xggk1
- google-site-verification=4qBcewyxZfnKc_VFIq1rYtZodBQg7FW3EeOxI-DKyAg
- apple-domain-verification=EJcpCKa3U0aZWq9N
- google-site-verification=aJiI3Gdz9gSfsVfJ9iAIpyuzDzIuHF4GRodM0YP1lqg
Full email verification for redbrain.com
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