heatingandcoolingsanjose.com

Valid Email Server
Domain Lookup › heatingandcoolingsanjose.com

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
heatingandcoolingsanjose.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-19 13:21:16 UTC · ↺ Refresh

MX Hostnames

  • mail.doap.com
  • mail1.doap.com

MX Priorities

  • mail.doap.com: 10
  • mail1.doap.com: 0

A / AAAA Records

  • 18.164.116.30 ↩ server-18-164-116-30.jfk50.r.cloudfront.net
  • 18.164.116.49 ↩ server-18-164-116-49.jfk50.r.cloudfront.net
  • 18.164.116.39 ↩ server-18-164-116-39.jfk50.r.cloudfront.net
  • 18.164.116.114 ↩ server-18-164-116-114.jfk50.r.cloudfront.net
  • 2600:9000:2511:2600:1d:7416:a80:93a1 (no PTR)
  • 2600:9000:2511:8800:1d:7416:a80:93a1 (no PTR)
  • 2600:9000:2511:fa00:1d:7416:a80:93a1 (no PTR)
  • 2600:9000:2511:5c00:1d:7416:a80:93a1 (no PTR)
  • 2600:9000:2511:c800:1d:7416:a80:93a1
  • 2600:9000:2511:dc00:1d:7416:a80:93a1
  • 2600:9000:2511:4400:1d:7416:a80:93a1
  • 2600:9000:2511:8200:1d:7416:a80:93a1

Mail Server IPs

  • 100.21.75.48 ↩ ec2-100-21-75-48.us-west-2.compute.amazonaws.com
  • 54.68.52.21 ↩ ec2-54-68-52-21.us-west-2.compute.amazonaws.com

SOA Record

Raw SOA gwen.ns.cloudflare.com dns.cloudflare.com 2403740188 10000 2400 604800 1800
Primary NS (mname)
gwen.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403740188
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

gwen.ns.cloudflare.com
hans.ns.cloudflare.com

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

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

4 records
  • google-site-verification=T7Rde8JG1LyEUl0s_TfLmQwpKjhM_iz9Xf7H-NA6ydk
  • google-site-verification=o8JG27uqtYbDYwMC0qd3fWIPEnxjtW2AD2IboV5_9dA
  • SPFv=spf1 -all
  • google-site-verification=FALa61HJS4VAtWCm3efaVB7g93SkJh4wFgvbmvlddQc
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