Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
3-dsecure.ch
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-09 05:41:11 UTC · ↺ Refresh
MX Hostnames
- mail-relay02.itsrv.tech
- mail-relay01.itsrv.tech
- mail-relay01.itsrv.plus
- mail-relay02.itsrv.plus
MX Priorities
- mail-relay02.itsrv.plus: 20
- mail-relay02.itsrv.tech: 20
- mail-relay01.itsrv.tech: 20
- mail-relay01.itsrv.plus: 20
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 194.11.209.187 ↩ mail-relay02.corner.ch
- 194.11.209.186 ↩ mail-relay01.corner.ch
SOA Record
Raw SOA
ns-bp.itsrv.tech hostmaster.itsrv.tech 2024040403 10800 30 604800 30
Primary NS (mname)
ns-bp.itsrv.tech
Admin Email (rname)
hostmaster@itsrv.tech
Serial
2024040403
Refresh
10800s
Retry
30s
Expire
604800s
Minimum TTL
30s
Nameservers (NS)
ns-bp.itsrv.plus
ns-sp.itsrv.plus
ns-sp.itsrv.tech
drns-sp.itsrv.plus
drns-bp.itsrv.tech
drns-sp.itsrv.tech
drns-bp.itsrv.plus
ns-bp.itsrv.tech
SPF Record
✓ Strict (-all)
v=spf1 include:itsrv.tech -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:itsrv.tech -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 · Customize →
See demo & docs
Deep verification
Full email verification for 3-dsecure.ch
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits