Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
concentradosdelcentro.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 18:56:01 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt1.aspmx.l.google.com: 5
- alt4.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
- alt3.aspmx.l.google.com: 10
A / AAAA Records
- 34.174.228.148
Mail Server IPs
- 142.251.16.26 ↩ bl-in-f26.1e100.net
- 2607:f8b0:400d:c0f::1a ↩ qa-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2607:f8b0:4020:c07::1b ↩ lcyulk-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
SOA Record
Raw SOA
ns1.siteground.net admins.siteground.com 989 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
admins@siteground.com
Serial
989
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.siteground.net
ns1.siteground.net
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:34.174.11.175 include:_spf.google.com include:concentradosdelcentro.com.spf.auto.dnssmarthost.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=20; fo=1; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 20% of failing messages only
DKIM Selectors
✓ 2 found
google._domainkey
default._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
2 records- google-site-verification=LDhsW-IfXyav1pr9NT8cj2mO1uOlNX3fFRscagUaVWA
- SPFv=spf1 +a +mx +ip4:34.174.11.175 include:_spf.google.com include:concentradosdelcentro.com.spf.auto.dnssmarthost.net -all
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