Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
trebel.io
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:37:42 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- alt1.aspmx.l.google.com
- aspmx2.googlemail.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 172.67.155.240 (no PTR)
- 104.21.56.209 (no PTR)
- 2606:4700:3030::ac43:9bf0 (no PTR)
- 2606:4700:3032::6815:38d1 (no PTR)
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 172.253.62.27 ↩ bc-in-f27.1e100.net
- 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
SOA Record
Raw SOA
ada.ns.cloudflare.com dns.cloudflare.com 2399191325 10000 2400 604800 1800
Primary NS (mname)
ada.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399191325
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ram.ns.cloudflare.com
ada.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=r;aspf=r;rua=mailto:[email protected];ruf=mailto:[email protected];rf=afrf;ri=86400;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 5 found
google._domainkey
default._domainkey
mail._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
9 records- google-site-verification=Q5P3-eyTraNCkzWmrTzOQp9lXmlLe6SHGol4OxBfly8
- google-site-verification=bvg7EokRclyKS7NIPxk0-GDjEZ1_AmM3Ezfn976h_ss
- google-site-verification=x2W1Q3NQ5mHxPNYPzRzydxo_vAfajtt-o8KunM4nKNs
- SPFv=spf1 include:_spf.google.com -all
- MS=8C43CECCBDFA8B435DA41B1042D6B78E4A995455
- atlassian-domain-verification=7zPyvNFp1RaFcduBzgacGR3LVBzAkxIMDcLH72ZgDytEq4a44f2QgpP4CB6yn5EF
- facebook-domain-verification=q04qtzoiskcymy68bsjplzct1xsq4e
- google-site-verification=8fMZh6SWabKJLRQ4DJiS0ZxlDANO4h4_HC0I8G-GFW0
- google-site-verification=PGyablfIPQdvst_79CpOqe-3xLHZ8msbGRR-WdLkrrA
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 trebel.io
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits