Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crescendo.ai
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 07:54:29 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 142.250.31.27 ↩ bj-in-f27.1e100.net
- 142.250.31.26 ↩ bj-in-f26.1e100.net
- 142.251.111.26 ↩ bk-in-f26.1e100.net
- 142.251.111.27 ↩ bk-in-f27.1e100.net
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1b ↩ bj-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
- 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
SOA Record
Raw SOA
ns09.domaincontrol.com dns.jomax.net 2026032502 28800 7200 604800 600
Primary NS (mname)
ns09.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032502
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns09.domaincontrol.com
ns10.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.salesforce.com include:mail.zendesk.com include:21662382.spf08.hubspotemail.net include:_spf.google.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
13 records- lucid-verification=kvb0vxf0kdn!ZJX!thq
- figma-domain-verification=f8abf87a006f88dc840269333475c6ce340e90767c841854ff8c2e3b6cce8975-1774456819
- zapier-domain-verification-challenge=ffb9845f-4932-4eb8-ac4e-6b3c66c4bc0a
- airtable-verification=airtable-verification=54a75e279e63fca737db6ffa1c58e4af
- SPFv=spf1 include:_spf.salesforce.com include:mail.zendesk.com include:21662382.spf08.hubspotemail.net include:_spf.google.com ~all
- docusign=eb6aa50d-21a8-4b32-b04f-40d622faa4e6
- google-site-verification=z4ZV3PkzubSero5Me_zpg4JrNO-vpsl6iWXVcJ6A6Cg
- asv=882fa947fae36dadb8a14298f84202ff
- google-site-verification=asLWTcwPIX1IJUeIbk7fV_OP6a57uUIAzt0LjxRHPPo
- google-site-verification=7pbRY-9ji-3A158gUJm_Gwo-ZGIyHfF_0temfVHq7_A
- openai-domain-verification=dv-JXmgz4fx8unpTxasI5kMN69H
- MS=ms33633033
- ZOOM_verify_SV7HZ3IDxy5bDc2TNkHdiD
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 crescendo.ai
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits