Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
demco.com.co
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 13:19:50 UTC · ↺ Refresh
MX Hostnames
- mx30.antispam.mailspamprotection.com
- mx10.antispam.mailspamprotection.com
- mx20.antispam.mailspamprotection.com
MX Priorities
- mx10.antispam.mailspamprotection.com: 10
- mx30.antispam.mailspamprotection.com: 30
- mx20.antispam.mailspamprotection.com: 20
A / AAAA Records
- 35.212.119.19 ↩ 19.119.212.35.bc.googleusercontent.com
Mail Server IPs
- 34.149.79.66 ↩ 66.79.149.34.bc.googleusercontent.com
- 34.111.121.216 ↩ 216.121.111.34.bc.googleusercontent.com
- 34.120.156.61 ↩ 61.156.120.34.bc.googleusercontent.com
SOA Record
Raw SOA
ns1.siteground.net dnsadmin.giow20.siteground.us 2019081777 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
dnsadmin@giow20.siteground.us
Serial
2019081777
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns1.siteground.net
ns2.siteground.net
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:35.212.20.62 +include:_spf.colhost.com +include:md02.com include:demco.com.co.spf.auto.dnssmarthost.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- DMARCv=DMARC1; p=none; rua=mailto:[email protected]
- SPFv=spf1 +a +mx +ip4:35.212.20.62 +include:_spf.colhost.com +include:md02.com include:demco.com.co.spf.auto.dnssmarthost.net -all
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