Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
precocerto.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 22:24:29 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx3.googlemail.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- mx.sendgrid.net
- aspmx2.googlemail.com
MX Priorities
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- mx.sendgrid.net: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 18.173.219.129
- 18.173.219.18
- 18.173.219.94
- 18.173.219.10
Mail Server IPs
- 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
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 18.224.101.244 ↩ ec2-18-224-101-244.us-east-2.compute.amazonaws.com
- 52.37.49.26 ↩ ec2-52-37-49-26.us-west-2.compute.amazonaws.com
- 52.25.213.239 ↩ ec2-52-25-213-239.us-west-2.compute.amazonaws.com
- 44.245.249.202 ↩ ec2-44-245-249-202.us-west-2.compute.amazonaws.com
- 44.216.124.122 ↩ ec2-44-216-124-122.compute-1.amazonaws.com
- 3.17.120.38 ↩ ec2-3-17-120-38.us-east-2.compute.amazonaws.com
- 13.216.54.185
- 3.136.245.72
- 15.222.160.229
- 34.198.67.24
- 16.52.61.209
- 16.52.110.174
- 108.177.123.27
SOA Record
Raw SOA
ns-1449.awsdns-53.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1449.awsdns-53.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-623.awsdns-13.net
ns-11.awsdns-01.com
ns-1449.awsdns-53.org
ns-2038.awsdns-62.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.precocerto.co include:_spf.google.com include:_spf.superlogica.com include:_spf.rdstation.com.br include:sendgrid.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; pct=100; ri=604800; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._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
4 records- SPFv=spf1 include:_spf.precocerto.co include:_spf.google.com include:_spf.superlogica.com include:_spf.rdstation.com.br include:sendgrid.net ~all
- atlassian-domain-verification=d9LELAtx2C3GpKoLxNlz0AlZi6L2K2VPVcfv6/nw/8Uut2dP2IRUh6N1njGWnYNw
- facebook-domain-verification=caab6jee876vmjhkvg61rg86832gui
- google-site-verification=7mZpeA1s6l1OOBL3YLvAdhLVhSOVi0U0GaRgpLZbhCI
Full email verification for precocerto.co
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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