Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
terraform.dev
No
None
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-31 06:57:36 UTC · ↺ Refresh
MX Hostnames
No MX records found.
MX Priorities
No priority data.
A / AAAA Records
- 3.171.139.117 ↩ server-3-171-139-117.jfk52.r.cloudfront.net
- 3.171.139.96 ↩ server-3-171-139-96.jfk52.r.cloudfront.net
- 3.171.139.91 ↩ server-3-171-139-91.jfk52.r.cloudfront.net
- 3.171.139.79 ↩ server-3-171-139-79.jfk52.r.cloudfront.net
- 2600:9000:28b2:be00:d:314b:b6c0:93a1 (no PTR)
- 2600:9000:28b2:ba00:d:314b:b6c0:93a1 (no PTR)
- 2600:9000:28b2:4400:d:314b:b6c0:93a1 (no PTR)
- 2600:9000:28b2:8000:d:314b:b6c0:93a1 (no PTR)
- 2600:9000:28b2:7400:d:314b:b6c0:93a1 (no PTR)
- 2600:9000:28b2:7800:d:314b:b6c0:93a1 (no PTR)
- 2600:9000:28b2:5400:d:314b:b6c0:93a1
- 2600:9000:28b2:dc00:d:314b:b6c0:93a1
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns-657.awsdns-18.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-657.awsdns-18.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-316.awsdns-39.com
ns-657.awsdns-18.net
ns-1327.awsdns-37.org
ns-1745.awsdns-26.co.uk
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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 -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 terraform.dev
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits