mail.phdhost.com - dns.ninja
mail.phdhost.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 172.105.6.8 | ||||||
| MX | mail.phdhost.com ⭐ | ||||||
| A | 172.105.6.8 | ||||||
| TXT | v=spf1 mx a ip4:172.105.6.8 ip6:2600:3c04::f03c:92ff:fe0a:da4c ~all | ||||||
phdhost.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:905Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:8ccdCloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.9.5Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.140.205Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | gordon.ns.cloudflare.com ⭐ | ||||||
| NS | thea.ns.cloudflare.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| MX | alt3.aspmx.l.google.com(10) | ||||||
| MX | alt4.aspmx.l.google.com(10) | ||||||
| TXT | google-site-verification=AdESDate7XqHBV6JFRbV2p7SBkJeyNVgIKcxuIz_O7g | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.9.5, 172.67.140.205 | ||||||
| IPv6 hints | 2606:4700:3033::6815:905, 2606:4700:3036::ac43:8ccd | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=104, name=cloudflare-ech.com | ||||||
| SOA | gordon.ns.cloudflare.comdns@cloudflare.com serial=2411066876 | ||||||
PTR for
MX for
mail.phdhost.com |
Previously MX for
DNS History
2 records (2 active, 0 former)
●MXmail.phdhost.com2026-04-14 → 2026-08-10 · 2 obs
● 2026-04-14 11:33:56
● 2026-08-10 05:10:04
● 2026-08-10 05:10:04
●A172.105.6.82026-04-14 → 2026-08-10 · 2 obs
● 2026-04-14 11:33:56
● 2026-08-10 05:10:04
● 2026-08-10 05:10:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| phdhost.com | gordon.ns.cloudflare.com, thea.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.170
NS records: gordon.ns.cloudflare.com, thea.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for phdhost.com (unsigned zone)
⏱️ Timing
Total: 4573ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 172.105.6.8 |
| MX | 1 | mail.phdhost.com (pri: 1) |
| TXT | 1 | v=spf1 mx a ip4:172.105.6.8 ip6:2600:3c0 |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (gordon.ns.cloudflare.com, gordon.ns.cloudflare.com, gordon.ns.cloudflare.com...)
Analysis
Mail Server Role
The MX record for mail.phdhost.com points back to mail.phdhost.com — it is its own mail server.
IP Addresses
mail.phdhost.com directs to one IP number, which is 172.105.6.8.
Mail Servers
The MX record for mail.phdhost.com points to a single mail server: mail.phdhost.com.
There is one IP number for mail.phdhost.com: 172.105.6.8.