hamteststudy.com - robtex.com
hamteststudy.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 66.160.183.71🇺🇸 HURRICANE66.160.128.0/18 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | www2.fc.softwaremiracles.com | ||||||
| NS | ns1.aoindustries.com ⭐ | ||||||
| A | 66.160.183.2🇺🇸 HURRICANE66.160.128.0/18 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns1.aoindustries.com | ||||||
| NS | ns2.aoindustries.com | ||||||
| A | 54.227.142.173🇺🇸 Amazon54.226.0.0/15 EC2 IAD prefix | ||||||
| PTR | ns2.aoindustries.com | ||||||
| NS | ns3.aoindustries.com | ||||||
| A | 64.71.144.2🇺🇸 HURRICANE64.71.128.0/18 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| NS | ns4.aoindustries.com | ||||||
| A | 64.62.174.2🇺🇸 HURRICANE64.62.128.0/18 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns4.aoindustries.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.aoindustries.comhostmaster@aoindustries.com 2018-07-13 #7 | ||||||
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=1792869346 | ||||||
Same first word
hamteststudy.com |
Similar names
Previous names
Next names
DNS History
6 records (5 active, 1 former)
●NSns1.aoindustries.com2008-03-18 → 2026-10-24 · 2 obs
● 2026-10-24 19:36:12
●NSns2.aoindustries.com2008-03-18 → 2026-10-24 · 2 obs
● 2026-10-24 19:36:12
●NSns3.aoindustries.com2026-09-15 → 2026-10-24 · 3 obs
● 2026-09-15 21:42:52
● 2026-10-24 19:36:12
●NSns4.aoindustries.com2026-09-15 → 2026-10-24 · 3 obs
● 2026-09-15 21:42:52
● 2026-10-24 19:36:12
○MXmail.hamteststudy.com2008-03-18 → 2017-01-28 · 4 obs
● 2017-01-28 19:36:00
○ 2026-09-15 21:42:52
○ 2026-10-24 19:36:12
●A66.160.183.712008-03-18 → 2026-10-24 · 2 obs
● 2026-10-24 19:36:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| hamteststudy.com | ns1.aoindustries.com, ns2.aoindustries.com, ns3.aoindustries.com, ns4.aoindustries.com | 4 records |
✅ Authoritative Response
Server:66.160.183.2
NS records: ns1.aoindustries.com, ns2.aoindustries.com, ns3.aoindustries.com, ns4.aoindustries.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 770ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 66.160.183.71 |
| NS | 4 | ns3.aoindustries.com, ns1.aoindustries.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.aoindustries.com hostmaster.aoindust |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.aoindustries.com, ns2.aoindustries.com, ns3.aoindustries.com...)
Analysis
IP Addresses
hamteststudy.com resolves to just one IP address, 66.160.183.71.
Two other host names, along with hamtestprep.com, radioamateurcourse.com and hamtests.com, also share IP numbers with hamteststudy.com.
Name Servers
The NS records for hamteststudy.com point to four name servers: ns1.aoindustries.com, ns2.aoindustries.com, ns3.aoindustries.com and ns4.aoindustries.com.
hamteststudy.com partially shares its NS delegation with several other domains, including hamcourseonline.com, nexusalpha.com, insightsys.net and two others.
The name servers ns5.aoindustries.com, ns2.kattare.com, ns4.kattare.com and ns1.kattare.com are often found in use alongside these name servers.
The hosts ns1.aoindustries.com, ns2.aoindustries.com, ns3.aoindustries.com and ns4.aoindustries.com all resolve to exactly one IP address each: 66.160.183.2, 54.227.142.173, 64.71.144.2 and 64.62.174.2 respectively.