Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
denverhealth.org
Yes
โ Yes
Unknown
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-04-01 18:36:41 UTC ยท โบ Refresh
MX Hostnames
- 0.mx.dhha.org
- 1.mx.dhha.org
MX Priorities
- 1.mx.dhha.org: 0
- 0.mx.dhha.org: 0
A / AAAA Records
- 34.223.142.29 โฉ ec2-34-223-142-29.us-west-2.compute.amazonaws.com
- 54.213.146.83 โฉ ec2-54-213-146-83.us-west-2.compute.amazonaws.com
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
vwxqazb02 hostmaster.dhha.org 1272470709 7200 2048 10485 2560
Primary NS (mname)
vwxqazb02
Admin Email (rname)
hostmaster@dhha.org
Serial
1272470709
Refresh
7200s
Retry
2048s
Expire
10485s
Minimum TTL
2560s
Nameservers (NS)
svl-ans-01.inet.qwest.net
vwxqazb02
dca-ans-01.inet.qwest.net
SPF Record
โ Strict (-all)
v=spf1 mx include:sendgrid.net -all
๐ DNS lookups: 2/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ MissingNo DMARC record โ emails cannot be rejected on auth failure.
DKIM Selectors
โ 2 found
s1._domainkey
s2._domainkey
โ Public key: 392 chars (valid)
โ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- apple-domain-verification=SudAe4yMkH5PjPdi
- apple-domain-verification=8Mik9vhiljrbupeb
- SPFv=spf1 mx include:sendgrid.net -all
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for denverhealth.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits