Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
healthtree.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-01 17:08:06 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
A / AAAA Records
- 199.36.158.100
Mail Server IPs
- 172.253.157.27 ↩ yubrupd-in-f27.1e100.net
- 2a00:1450:400c:c23::1a ↩ yubrupd-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 172.253.115.26 ↩ bg-in-f26.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
SOA Record
Raw SOA
chip.ns.cloudflare.com dns.cloudflare.com 2407211096 10000 2400 604800 1800
Primary NS (mname)
chip.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2407211096
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chip.ns.cloudflare.com
tara.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.firebasemail.com include:_spf.google.com include:sendgrid.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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
14 records- firebase=healthtree-production
- firebase=healthtree-staging-a7b7a
- google-site-verification=JooDNmzEum1kJRMwDLuNvBifv95nV5MWJRo_vDuxw8Q
- google-site-verification=_ZmaztbjCBW0f7nFKyYLA9lMng-nVR2PjHS203bCBAU
- google-site-verification=d2NefshQIKyzUnMYGmkCyf512-sw09-0JR3cdaslvCk
- google-site-verification=o4pLFM7Y4B0pbCz1hQm0vJX9FKLBNBTJ9AXzKEVUgFk
- google-site-verification=s9bfJsj28E-Xp9PwEcaU7SzxD5XMRnwPq_L7a01sLIg
- google-site-verification=zIsk8GtHd75l2UQNcnbFqOGawWG_R_RfzIP7jUNqyU4
- hosting-site=healthtree-production
- SPFv=spf1 include:_spf.firebasemail.com include:_spf.google.com include:sendgrid.net -all
- apple-domain-verification=MPKMfA8qvskxtgOJ
- cerner-client-id=42522dd0-26f6-436e-9755-64cd788d1a8d
- fah-claim=023-02-0beec3be-3671-45c4-831e-616c5b12894c
- firebase=
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