phd-computers.com - dns.ninja
phd-computers.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786841919 | ||||||
MX for
phd-computers.com |
Subdomains
mail.phd-computers.com |
Same first word
phd-computers.com |
Similar names
DNS History
12 records (8 active, 4 former)
●NSns1.guardedhost.com2015-08-17 → 2026-08-16 · 2 obs
● 2026-08-16 01:05:06
●NSns1.jethostns.com2026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 01:05:06
●NSns2.guardeddns.net2026-03-03 → 2026-08-16 · 3 obs
● 2026-03-03 00:16:08
● 2026-08-16 01:05:06
○NSns2.guardedhost.com2015-08-17 → 2016-09-13 · 3 obs
● 2016-09-13 14:48:46
○ 2026-08-16 01:05:06
●NSns2.jethostns.com2026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 01:05:06
●NSns3.jethostns.com2026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 01:05:06
●NSns4.jethostns.com2026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 01:05:06
○NSprimary.guardeddns.net2015-08-17 → 2016-09-13 · 3 obs
● 2016-09-13 14:48:46
○ 2026-08-16 01:05:06
●MXphd-computers.com2026-07-10 → 2026-08-16 · 3 obs
● 2026-07-10 17:42:58
● 2026-08-16 01:05:06
○MXpostoffice.guardedhost.com2015-08-17 → 2026-06-14 · 4 obs
● 2026-06-14 07:25:22
○ 2026-07-10 17:42:58
○ 2026-08-16 01:05:06
●A15.204.22.602026-07-10 → 2026-08-16 · 3 obs
● 2026-07-10 17:42:58
● 2026-08-16 01:05:06
○A64.57.76.52015-08-17 → 2026-06-14 · 4 obs
● 2026-06-14 07:25:22
○ 2026-07-10 17:42:58
○ 2026-08-16 01:05:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net... | - |
| phd-computers.com | ns1.guardedhost.com, ns2.guardeddns.net | 1 record |
✅ Authoritative Response
Server:185.8.238.20
NS records: ns1.guardedhost.com, ns2.guardeddns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for phd-computers.com (unsigned zone)
⏱️ Timing
Total: 299ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 15.204.22.60 |
| NS | 4 | ns3.jethostns.com, ns4.jethostns.com... |
| MX | 1 | phd-computers.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:15.204.22.58 ip4:15.204.39.24 |
| SOA | 1 | ns1.jethostns.com wedos.wedos.com |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns1.guardedhost.com)
Analysis
Hierarchy
mail.phd-computers.com is a subdomain of phd-computers.com.
Mail Server Role
The MX record for phd-computers.com points back to phd-computers.com — it is its own mail server.
IP Addresses
phd-computers.com directs to one IP number, which is 15.204.22.60.
Among the host names that share IP numbers with phd-computers.com are sweetdreamsofmeriden.com, katibah.net, airgyro.com and two others.
Name Servers
phd-computers.com carries NS records listing 6 name servers — ns1.guardedhost.com, ns1.jethostns.com, ns2.jethostns.com and 3 others.
The name servers of phd-computers.com overlap at least partially with those of other domains — among them urbanstrategiesinc.net, edscomm.net, infinitygreenspeed.com and two more.
These name servers commonly appear in delegations together with ns3.jethostns.com, ns4.jethostns.com, ns2.guardeddns.net and 7 other.
Hosts with two IP numbers each:
The A records for ns1.guardedhost.com return 45.138.106.20 and 2a0e:acc0:1::cafe:cafe:ca20.
The A records for ns1.jethostns.com return 45.138.106.20 and 2a0e:acc0:1::cafe:cafe:ca20.
The A records for ns2.jethostns.com return 185.8.238.20 and 2a0e:acc0:2::b:1:b20.
The A records for ns3.jethostns.com return 45.138.106.21 and 2a0e:acc0:1::cafe:cafe:ca21.
The A records for ns4.jethostns.com return 185.8.238.21 and 2a0e:acc0:2::b:1:b21.
The A records for ns2.guardeddns.net return 185.8.238.20 and 2a0e:acc0:2::b:1:b20.
ns1.guardedhost.com and ns1.jethostns.com each have 2a0e:acc0:1::cafe:cafe:ca20 IP addresses.
ns1.guardedhost.com and ns1.jethostns.com each have 45.138.106.20 IP addresses.
ns2.jethostns.com and ns2.guardeddns.net each have 2a0e:acc0:2::b:1:b20 IP addresses.
ns2.jethostns.com and ns2.guardeddns.net each have 185.8.238.20 IP addresses.
Mail Servers
The MX record for phd-computers.com points to a single mail server: phd-computers.com.
phd-computers.com resolves to 15.204.22.60 and no other IP number.