Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
contactscience.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-03 10:28:53 UTC · ↺ Refresh
MX Hostnames
- mx20.antispam.mailspamprotection.com
- mx30.antispam.mailspamprotection.com
- mx10.antispam.mailspamprotection.com
MX Priorities
- mx10.antispam.mailspamprotection.com: 10
- mx30.antispam.mailspamprotection.com: 30
- mx20.antispam.mailspamprotection.com: 20
A / AAAA Records
- 34.174.31.101 ↩ 101.31.174.34.bc.googleusercontent.com
Mail Server IPs
- 34.149.79.66 ↩ 66.79.149.34.bc.googleusercontent.com
- 34.111.121.216 ↩ 216.121.111.34.bc.googleusercontent.com
- 34.120.156.61 ↩ 61.156.120.34.bc.googleusercontent.com
SOA Record
Raw SOA
ns1.siteground.net dnsadmin.serv01.siteground237.com 2020120597 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
dnsadmin@serv01.siteground237.com
Serial
2020120597
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns1.siteground.net
ns2.siteground.net
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:34.174.146.146 include:klpzmedia.com include:spf.dynect.net include:amazonses.com include:rp.oracleemaildelivery.com include:contactscience.com.spf.auto.dnssmarthost.net ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
2 records- google-site-verification=A33t-wLHMQaoc3kQjdjfwZwHNxEYT5E3gAgvpeYgc9Q
- SPFv=spf1 +a +mx +ip4:34.174.146.146 include:klpzmedia.com include:spf.dynect.net include:amazonses.com include:rp.oracleemaildelivery.com include:contactscience.com.spf.auto.dnssmarthost.net ~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 contactscience.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits