phdfocus.com - robtex.com
phdfocus.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=1774940437 | ||||||
Same first word
phdfocus.com |
DNS History
7 records (7 active, 0 former)
●NSns1.linode.com2026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
●NSns2.linode.com2026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
●NSns3.linode.com2026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
●NSns4.linode.com2026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
●NSns5.linode.com2026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
●A172.105.55.92026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
●A2400:8904::f03c:93ff:fef1:e6212026-02-28 → 2026-03-31 · 2 obs
● 2026-03-31 07:03:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| phdfocus.com | ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com... | 10 records |
✅ Authoritative Response
Server:92.123.95.2
NS records: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for phdfocus.com (unsigned zone)
⏱️ Timing
Total: 112ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 172.105.55.9 |
| AAAA | 1 | 2400:8904::f03c:93ff:fef1:e621 |
| NS | 5 | ns1.linode.com, ns2.linode.com... |
| SOA | 1 | ns1.linode.com phdfocus\.com\.linode.tri |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (ns1.linode.com, ns1.linode.com, ns2.linode.com...)
Analysis
IP Addresses
phdfocus.com points to two IP numbers: 2400:8904::f03c:93ff:fef1:e621 and 172.105.55.9.
Name Servers
phdfocus.com is delegated to five name servers: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com and ns5.linode.com.
phdfocus.com shares name servers with other domains at least partially, for instance westbankdeli.com, yourtradechoice.org, liviucos.ro, s-labs.org and shopathomeselect.com.
Host names with two IP numbers:
ns1.linode.com points to 2600:14c0:6::2 and 92.123.94.2.
ns2.linode.com points to 2600:14c0:6::3 and 92.123.94.3.
ns3.linode.com points to 2600:14c0:7::3 and 92.123.95.3.
ns4.linode.com points to 2600:14c0:7::4 and 92.123.95.4.
ns5.linode.com points to 2600:14c0:7::2 and 92.123.95.2.