Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
una.ac.cr
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 05:26:59 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx4.googlemail.com
- aspmx3.googlemail.com
- aspmx5.googlemail.com
- aspmx2.googlemail.com
- aspmx.l.google.com
MX Priorities
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx4.googlemail.com: 10
- aspmx2.googlemail.com: 10
- aspmx.l.google.com: 1
- alt2.aspmx.l.google.com: 5
- aspmx5.googlemail.com: 10
A / AAAA Records
- 45.162.204.57
Mail Server IPs
- 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::1b (no PTR)
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 192.178.218.27 ↩ yuiadtq-in-f27.1e100.net
- 2607:f8b0:4004:c23::1a ↩ yuiadrs-in-f26.1e100.net
SOA Record
Raw SOA
ns.una.ac.cr root.una.ac.cr 2026032002 10800 3600 1209600 3600
Primary NS (mname)
ns.una.ac.cr
Admin Email (rname)
root@una.ac.cr
Serial
2026032002
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns.una.ac.cr
ns2.una.ac.cr
ns6.una.ac.cr
ns3.una.ac.cr
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:45.162.204.180 ip4:45.162.204.179 ip4:45.162.204.42 ip4:45.162.204.40 ip4:45.162.205.66 include:_spf.google.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
✓ 1 found
google._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
5 records- google-site-verification=tQYM8pcMY7WKZiXKuRoXwspszXTGPnIaANeW4S5bVV0
- 3Q2J5RAAZKO2CZ8L4W03J4G6FZ9WL015ZBF85TMY
- duo_sso_verification=GUG6OUcYPGVpBn8O7LdqEphwnwRKDeTCKvcR1EZMohRRq5rrrXLXJETWfaxK7u33
- SPFv=spf1 a mx ip4:45.162.204.180 ip4:45.162.204.179 ip4:45.162.204.42 ip4:45.162.204.40 ip4:45.162.205.66 include:_spf.google.com include:spf.protection.outlook.com -all
- facebook-domain-verification=ef3uiyac392cuoykeg2vc1o5gy44by
Full email verification for una.ac.cr
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