Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grancursosonline.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 11:39:30 UTC · ↺ Refresh
MX Hostnames
- alt3.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 104.18.100.225
- 104.18.99.225
- 2606:4700::6812:63e1
- 2606:4700::6812:64e1
Mail Server IPs
- 192.178.155.27 ↩ yuiadrs-in-f27.1e100.net
- 2607:f8b0:4004:c17::1a ↩ bl-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
dan.ns.cloudflare.com dns.cloudflare.com 2399964097 10000 2400 604800 1800
Primary NS (mname)
dan.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399964097
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dan.ns.cloudflare.com
rita.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:302036.spf06.hubspotemail.net include:_spf.salesforce.com include:cust-spf.exacttarget.com ip4:168.245.107.217 ip4:168.245.71.19 ip4:136.147.229.185 ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
google._domainkey
k1._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
16 records- miro-verification=4394c3b7962ee08e2046f11b82c381e37dc66d49
- google-site-verification=JoSCARaYBckFvemdRfu8wT2N5GX4EO43Hg80c43UBI0
- onetrust-domain-verification=caf3e6b8fb9c49bebabf05dfb1697e9b
- _r2pis3c3af7vy734nudcyp3ovfkq5ww
- google-site-verification=xiBkOcAELpzCJlFjzARMpyCQpajShwRZ0RwuDQY3V2U
- google-site-verification=d7VkumPbjAPn780yarlTvfyLFQy0nugpDFtoQVB2pzc
- hcp-domain-verification=4fd9327a2e4b14266f6e6044cdbb0f3556180daa114c0084d66fd7aaed84d8bf
- google-site-verification=1m2tQHRTA5e4GsKQNx_tKHKsw_vEVEKmYvfZyFqdA1o
- MS=ms15123477
- atlassian-domain-verification=8xiJYcQ1gnysutOmpxf6x8cvLNZyaARmLpR2YqL3Dz6Stz0PwHXZczMQxR6vF9Vx
- google-site-verification=atopuSr7BiVqBseFzJr4OII1FZtMEoSeA09MYZE7sRo
- google-site-verification=bJj3VTcb9ZUQDOPT5SbS_5nkfsr-Raw9oh8ptw01MRM
- google-site-verification=BH-6GXNCScJusTX7ROYHrxvvYH9c21yIbx5UHvdOgvQ
- google-site-verification=4pYdXVBpN4LSXBeZO9rx3B4rnwOpKaNx3oL-Ue2Ntro
- Validity-DomainVerification=Dnd+gzxPqOUWqJwGPCbe9a62tic=
- SPFv=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:302036.spf06.hubspotemail.net include:_spf.salesforce.com include:cust-spf.exacttarget.com ip4:168.245.107.217 ip4:168.245.71.19 ip4:136.147.229.185 ~all
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 grancursosonline.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits