Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cdi.bio
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 06:32:36 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt2.aspmx.l.google.com: 10
A / AAAA Records
- 104.21.32.103
- 172.67.185.140
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
alex.ns.cloudflare.com dns.cloudflare.com 2399522428 10000 2400 604800 1800
Primary NS (mname)
alex.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399522428
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
alex.ns.cloudflare.com
rita.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:149.72.147.186 ip4:167.89.101.239 include:_spf.google.com include:sendgridmailer.samanage.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=s;adkim=s;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
6 records- zoho-verification=zb43171812.zmverify.zoho.com
- apple-domain-verification=lkWEx7d9DKdsxAou
- google-site-verification=GnHIc_cw-AWBu_01GFZkiS08auujz1ZmK3cerAMKOYc
- tinfoil-site-verification: aa12beef6de1925dd752c9202c057b6a68eda61b=d90ea6e80c06b19d27dbfc623c304125c0f64752
- SPFv=spf1 ip4:149.72.147.186 ip4:167.89.101.239 include:_spf.google.com include:sendgridmailer.samanage.com ~all
- yandex-verification: 02054a1724a167a8
Full email verification for cdi.bio
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits