Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
o3world.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 14:00:21 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 10
- aspmx3.googlemail.com: 10
- aspmx2.googlemail.com: 10
- alt1.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 10
A / AAAA Records
- 23.185.0.1 (no PTR)
- 2620:12a:8001::1
- 2620:12a:8000::1
Mail Server IPs
- 192.178.155.27 ↩ yuiadrs-in-f27.1e100.net
- 2607:f8b0:4004:c1b::1b ↩ wv-in-f27.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ns10.dnsmadeeasy.com dns.dnsmadeeasy.com 2009010345 43200 3600 1209600 180
Primary NS (mname)
ns10.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2009010345
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns11.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns12.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.google.com include:spf.mandrillapp.com include:sparkpostmail.com include:servers.mcsv.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
4 records- google-site-verification=UmszyWVH-A9kg1qkMtAQgeW7q_MXxA2_2szNBNEN8Mo
- SPFv=spf1 a mx include:_spf.google.com include:spf.mandrillapp.com include:sparkpostmail.com include:servers.mcsv.net ~all
- MS=4AEB5533C3B7458191757F335DB8583DCD13809F
- facebook-domain-verification=6e2scvayb5o1eed7p7n6s67xutmzbv
Full email verification for o3world.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits