Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
costrategix.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 08:49:34 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx2.googlemail.com
- aspmx.l.google.com
MX Priorities
No priority data.
A / AAAA Records
- 141.193.213.10
- 141.193.213.11
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
ns65.domaincontrol.com
ns66.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a ip4:107.20.179.121 include:_spf.google.com include:servers.mcsv.net include:8730704.spf03.hubspotemail.net include:spf.protection.outlook.com include:zcsend.net include:amazonses.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
k1._domainkey
s1._domainkey
s2._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- MS=ms26286253
- ms-domain-verification=2bb2db3d-34eb-4c41-bd1d-9406ffd3801c
- v=verifydomain MS=3680638
- v=verifydomain MS=2302590
- google-site-verification=N5U6-ILv_yyFemcbA0NX2PfNbSUMUkHJRpgSnAHJIAU
- google-site-verification=Zly-Gh-rJl_5nH9-z9H7WbO1f4ozjlX4jXnJLRLG194
- https://support.zendesk.com/hc/en-us/articles/203683886-Setting-up-SPF-for-Zendesk-to-send-email-on-behalf-of-your-email-domain
- SPFv=spf1 a ip4:107.20.179.121 include:_spf.google.com include:servers.mcsv.net include:8730704.spf03.hubspotemail.net include:spf.protection.outlook.com include:zcsend.net include:amazonses.com ~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 costrategix.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits