Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ucentral.edu.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 07:54:36 UTC · ↺ Refresh
MX Hostnames
- ALT1.ASPMX.L.GOOGLE.COM
- ALT4.ASPMX.L.GOOGLE.COM
- ALT2.ASPMX.L.GOOGLE.COM
- ASPMX.L.GOOGLE.COM
- ALT3.ASPMX.L.GOOGLE.COM
MX Priorities
- alt4.aspmx.l.google.com: 10
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 208.109.235.219
Mail Server IPs
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 142.251.163.26 ↩ wv-in-f26.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.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)
SOA Record
Raw SOA
ns20.columbus-networks.com co-ip.cwc.com 2025090321 3600 600 1209600 3600
Primary NS (mname)
ns20.columbus-networks.com
Admin Email (rname)
co-ip@cwc.com
Serial
2025090321
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns22.columbus-networks.com
ns20.columbus-networks.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:spf.hostmar.com include:mailgun.org ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; ruf=mailto:[email protected]; rua=mailto:[email protected]; sp=quarantine; adkim=s; aspf=s; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
google._domainkey
k1._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- 1QE3H97ZwISjeu7GMocyX00oXaNZeaRPna3x9ZrfVyE=
- google-site-verification=lZgyWGVGjkZbPYYLTyLoli3i8pYLt-85tDGFqvRpA9M
- apple-domain-verification=nX5zKdgPcm29E3M4
- fortinet-fortiphish-site-verification=rocmjDVu95s9x6Q9LzWxt8
- MS=837D6630EE80AE27987FE1D85DB48E7AE5366BC8
- google-site-verification=YQ6EIJRzeoECi1gGL-bidqg9vblVx1LAKZDoFzRpmsE
- google-site-verification=tDmnLv7VK0FFfJDaaafRvwutU260h1qXkCRAyi4hVVk
- SPFv=spf1 include:_spf.google.com include:spf.hostmar.com include:mailgun.org ~all
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