Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esss.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 00:51:58 UTC · ↺ Refresh
MX Hostnames
- ASPMX.L.GOOGLE.COM
- ALT2.ASPMX.L.GOOGLE.COM
- ALT1.ASPMX.L.GOOGLE.COM
- ALT4.ASPMX.L.GOOGLE.COM
- ALT3.ASPMX.L.GOOGLE.COM
MX Priorities
- aspmx.l.google.com: 1
- alt4.aspmx.l.google.com: 10
- alt3.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 34.41.65.0
Mail Server IPs
- 142.251.111.27 ↩ bk-in-f27.1e100.net
- 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 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::1a (no PTR)
SOA Record
Raw SOA
ns1.esss.co postmaster.esss.co 2026010903 7200 900 1209600 86400
Primary NS (mname)
ns1.esss.co
Admin Email (rname)
postmaster@esss.co
Serial
2026010903
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.esss.co
ns2.esss.co
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:_spf.salesforce.com include:139766649.spf05.hubspotemail.net include:_spf.esss.co -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=r; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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
5 records- DirectFedAuthUrl=https://accounts.google.com/o/saml2/idp?idpid=C0457bt02
- MS=ms23639080
- SPFv=spf1 include:_spf.google.com include:_spf.salesforce.com include:139766649.spf05.hubspotemail.net include:_spf.esss.co -all
- atlassian-sending-domain-verification=920c8f45-b42f-4d18-a37b-f4b5d6ef7caa
- google-site-verification=pusJPhac69dBdbcrdFqEti59j9PkzOMd5XDRgUHCFvM
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for esss.co
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits