Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
qcs.ca
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 01:05:31 UTC · ↺ Refresh
MX Hostnames
- tiggr.qcs.ca
MX Priorities
- tiggr.qcs.ca: 5
A / AAAA Records
- 23.138.128.66 ↩ tiggr.qcs.ca
Mail Server IPs
- 23.138.128.66 ↩ tiggr.qcs.ca
SOA Record
Raw SOA
ns1.qcs.ca root.qcs.ca 2025081202 3600 1800 604800 43200
Primary NS (mname)
ns1.qcs.ca
Admin Email (rname)
root@qcs.ca
Serial
2025081202
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
43200s
Nameservers (NS)
ns1.qcs.ca
ns2.qcs.ca
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:23.138.128.64/27 ip4:216.240.0.0/24 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:23.138.128.64/27 ip4:216.240.0.0/24 ~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 qcs.ca
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits