Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
casan.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 00:30:17 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 5
- aspmx3.googlemail.com: 10
- aspmx2.googlemail.com: 10
- aspmx.l.google.com: 1
A / AAAA Records
- 8.242.92.139
Mail Server IPs
- 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)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c23::1b ↩ yuiadrs-in-f27.1e100.net
SOA Record
Raw SOA
ns-cloud-c1.googledomains.com cloud-dns-hostmaster.google.com 2 21600 3600 259200 300
Primary NS (mname)
ns-cloud-c1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
2
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-c4.googledomains.com
ns-cloud-c3.googledomains.com
ns-cloud-c2.googledomains.com
ns-cloud-c1.googledomains.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:8.242.92.128/26 ip4:187.72.193.41/32 ip4:201.48.179.97/32 ip4:200.215.171.73/32 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; pct=100; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],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
8 records- heyhack-verification=bbd0d8a8-d618-4ea6-a53f-04a6b02be9b1
- heyhack-verification=33250d20-c1ef-459d-8fb2-4c368e7a4217
- google-site-verification=5aAUTPzeUscq93dFbQUw44nMyevH4rhAOout9EiC9vg
- heyhack-verification=d459f997-4996-4131-8458-d43c2695b583
- heyhack-verification=6f685c5b-2c1b-4ecf-bc2d-21ec12b4034e
- heyhack-verification=3021922d-f474-44d9-bd3a-8dd36ff6a5d0
- SPFv=spf1 ip4:8.242.92.128/26 ip4:187.72.193.41/32 ip4:201.48.179.97/32 ip4:200.215.171.73/32 include:_spf.google.com ~all
- heyhack-verification=9f9ea3ef-8c91-4170-a41a-1955bdefebbf
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 casan.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits