Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cnc.go.cr
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 04:44:17 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- aspmx3.googlemail.com
- aspmx2.googlemail.com
MX Priorities
- aspmx.l.google.com: 1
- alt2.aspmx.l.google.com: 5
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 34.171.40.56 ↩ 56.40.171.34.bc.googleusercontent.com
- 2600:1900:4001:576::2:0:0 ↩ 0.0.0.0.0.0.0.0.2.0.0.0.0.0.0.0.6.7.5.0.1.0.0.4.0.0.9.1.0.0.6.2.bc.googleusercontent.com
Mail Server IPs
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.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)
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
SOA Record
Raw SOA
ns1.iescr.com web.iescr.com 2025120502 1800 1800 1209600 86400
Primary NS (mname)
ns1.iescr.com
Admin Email (rname)
web@iescr.com
Serial
2025120502
Refresh
1800s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.iescr.com
ns1.iescr.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:172.16.135.12 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 ip4:172.16.135.12 include:_spf.google.com -all
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