Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cooleschool.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 13:40:05 UTC · ↺ Refresh
MX Hostnames
- cooleschool.com.2.0001.arsmtp.com
- cooleschool.com.1.0001.arsmtp.com
MX Priorities
- cooleschool.com.1.0001.arsmtp.com: 10
- cooleschool.com.2.0001.arsmtp.com: 20
A / AAAA Records
- 34.226.64.185 ↩ ec2-34-226-64-185.compute-1.amazonaws.com
Mail Server IPs
- 8.31.233.86 ↩ server252.appriver.com
- 8.19.118.178 ↩ server253.appriver.com
SOA Record
Raw SOA
ns1.ibdesignhosting.com ibdesignservers.gmail.com 2026021603 86400 7200 3600000 86400
Primary NS (mname)
ns1.ibdesignhosting.com
Admin Email (rname)
ibdesignservers@gmail.com
Serial
2026021603
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.ibdesignhosting.com
ns8.ibdesignhosting.com
ns7.ibdesignhosting.com
ns1.ibdesignhosting.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:108.160.148.88 +include:edgepilot.com +include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
default._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 +a +mx +ip4:108.160.148.88 +include:edgepilot.com +include:spf.protection.outlook.com -all
- MS=ms41327480
- _zarh2m73l918abqyjapakhj954pxttn
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 cooleschool.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits