doctorschool.com - robtex.com
doctorschool.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns5.afternic.com ⭐ | ||||||
| A | 2603:5:2134::42🇺🇸 GODADDY-DNS2603:5:2130::/44 | ||||||
| PTR | ns5.afternic.com | ||||||
| A | 97.74.99.66🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns5.afternic.com | ||||||
| NS | ns6.afternic.com | ||||||
| A | 2603:5:2234::42🇺🇸 GODADDY-DNS2603:5:2230::/44 | ||||||
| PTR | ns6.afternic.com | ||||||
| A | 173.201.67.66🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns6.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns5.afternic.comdns@jomax.net 2025-09-30 #0 | ||||||
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=1771291435 | ||||||
Subdomains
nullmx.doctorschool.com |
Same first word
doctorschool.com |
Similar names
DNS History
9 records (4 active, 5 former)
○NSns1.afternic.com2015-05-27 → 2017-03-13 · 4 obs
● 2017-03-13 11:30:26
○ 2019-12-21 15:25:22
○ 2026-03-24 01:07:52
○NSns1.smartname.com2019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 15:25:22
○ 2026-03-23 13:44:20
○ 2026-03-24 01:07:52
○NSns2.smartname.com2019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 15:25:22
○ 2026-03-23 13:44:20
○ 2026-03-24 01:07:52
●NSns5.afternic.com2026-03-23 → 2026-03-24 · 3 obs
● 2026-03-23 13:44:20
● 2026-03-24 01:07:52
●NSns6.afternic.com2026-03-23 → 2026-03-24 · 3 obs
● 2026-03-23 13:44:20
● 2026-03-24 01:07:52
●A13.248.169.482026-03-23 → 2026-03-24 · 3 obs
● 2026-03-23 13:44:20
● 2026-03-24 01:07:52
○A184.168.221.1042015-05-27 → 2017-03-13 · 4 obs
● 2017-03-13 11:30:26
○ 2019-12-21 15:25:22
○ 2026-03-24 01:07:52
○A35.186.238.1012019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 15:25:22
○ 2026-03-23 13:44:20
○ 2026-03-24 01:07:52
●A76.223.54.1462026-03-23 → 2026-03-24 · 3 obs
● 2026-03-23 13:44:20
● 2026-03-24 01:07:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| doctorschool.com | ns5.afternic.com, ns6.afternic.com | 2 records |
✅ Authoritative Response
Server:97.74.99.66
NS records: ns5.afternic.com, ns6.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doctorschool.com (unsigned zone)
⏱️ Timing
Total: 113ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns5.afternic.com, ns6.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns5.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns5.afternic.com, ns6.afternic.com)
Analysis
Hierarchy
doctorschool.com is the parent of nullmx.doctorschool.com.
IP Addresses
doctorschool.com resolves to two IP numbers: 13.248.169.48 and 76.223.54.146.
other host names including aidpen.com, 157.140.rdns.ubiquity.io, aloudmedia.com, poop.co and opinionmill.com share IP numbers with doctorschool.com.
Name Servers
doctorschool.com is delegated to two name servers ns5.afternic.com and ns6.afternic.com.
doctorschool.com shares the same name server setup as other domains, for instance termstop.com, gucii.com, www.v10.com, pinroof.com and nullmx.lookong.com.
doctorschool.com at least partially shares name servers with other domains, for instance coolfun.xyz, xeretano.xyz, coastking.xyz, ecounity.xyz and taxibus.us.
These name servers are commonly used with verification-gakbzzzqmt6gkcplw4efpp.ns101.verify.hn, verification-ryl9l7cn2xbgckdbkcguz6.ns101.verify.hn and verification-ex8vn3zniaperlcgbphvpy.ns101.verify.hn.
Host names with two IP numbers:
The host name ns5.afternic.com points to 2603:5:2134::42 and 97.74.99.66; the host name ns6.afternic.com points to 2603:5:2234::42 and 173.201.67.66.