Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
caldusenergy.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 01:15:36 UTC · ↺ Refresh
MX Hostnames
- mailsec.protonmail.ch
- mail.protonmail.ch
MX Priorities
- mail.protonmail.ch: 1
- mailsec.protonmail.ch: 2
A / AAAA Records
- 192.185.13.242 ↩ 192-185-13-242.unifiedlayer.com
Mail Server IPs
- 185.70.42.128 ↩ mail.protonmail.ch
- 176.119.200.128 ↩ mail.protonmail.ch
- 185.205.70.128 ↩ mail.protonmail.ch
- 176.119.200.129 ↩ mailsec.protonmail.ch
- 185.205.70.129 ↩ mailsec.protonmail.ch
- 185.70.42.129 ↩ mailsec.protonmail.ch
SOA Record
Raw SOA
ns261.websitewelcome.com timpadden.gmail.com 2026020504 86400 7200 3600000 86400
Primary NS (mname)
ns261.websitewelcome.com
Admin Email (rname)
timpadden@gmail.com
Serial
2026020504
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns261.websitewelcome.com
ns262.websitewelcome.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.protonmail.ch mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
google._domainkey
default._domainkey
✓ Public key: 237 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
4 records- protonmail-verification=493ad96aba33036844805c9d32ae7abc8ff11d0d
- google-site-verification=cs4DPHrNJQm9xIowijWguF8GAvQ3sin0S3uxHjQSjEo
- openai-domain-verification=dv-qYb9ZNCkxmpRXvCGtw3OmPFP
- SPFv=spf1 include:_spf.protonmail.ch mx ~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 caldusenergy.com
SMTP handshake, catch-all detection, SPF/DKIM/DMARC analysis, and Yahoo/Outlook verification.
Get 1,000 Free Credits