coder.school - robtex.com
coder.school
| 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 | ns3.afternic.com ⭐ | ||||||
| A | 97.74.98.65🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns3.afternic.com | ||||||
| NS | ns4.afternic.com | ||||||
| A | 173.201.66.65🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns4.namefind.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns3.afternic.comdns@jomax.net 2025-10-01 #0 | ||||||
school
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.school ⭐ | ||||||
| NS | v0n1.nic.school | ||||||
| NS | v0n2.nic.school | ||||||
| NS | v0n3.nic.school | ||||||
| NS | v2n0.nic.school | ||||||
| NS | v2n1.nic.school | ||||||
| SOA | v0n0.nic.schoolhostmaster@donuts.email serial=1783208546 | ||||||
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
●NSns3.afternic.com2026-02-23 → 2026-07-05 · 3 obs
● 2026-02-23 00:57:40
● 2026-07-05 00:21:44
●NSns4.afternic.com2026-02-23 → 2026-07-05 · 3 obs
● 2026-02-23 00:57:40
● 2026-07-05 00:21:44
○NSns55.domaincontrol.com2016-12-10 → 2016-12-10 · 3 obs
○ 2026-02-23 00:57:40
○ 2026-07-05 00:21:44
○NSns56.domaincontrol.com2016-12-10 → 2016-12-10 · 3 obs
○ 2026-02-23 00:57:40
○ 2026-07-05 00:21:44
○MXmailstore1.secureserver.net2016-12-10 → 2016-12-10 · 3 obs
○ 2026-02-23 00:57:40
○ 2026-07-05 00:21:44
○MXsmtp.secureserver.net2016-12-10 → 2016-12-10 · 3 obs
○ 2026-02-23 00:57:40
○ 2026-07-05 00:21:44
●A13.248.169.482026-02-23 → 2026-07-05 · 3 obs
● 2026-02-23 00:57:40
● 2026-07-05 00:21:44
○A184.168.221.522016-12-10 → 2016-12-10 · 3 obs
○ 2026-02-23 00:57:40
○ 2026-07-05 00:21:44
●A76.223.54.1462026-02-23 → 2026-07-05 · 3 obs
● 2026-02-23 00:57:40
● 2026-07-05 00:21:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| school | v0n0.nic.school, v0n1.nic.school, v0n2.nic.school, v0n3.nic.school... | 12 records |
| coder.school | ns4.afternic.com, ns3.afternic.com | - |
✅ Authoritative Response
Server:173.201.66.65
NS records: ns4.afternic.com, ns3.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coder.school (unsigned zone)
⏱️ Timing
Total: 337ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns3.afternic.com, ns4.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns3.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.school, v0n1.nic.school, v0n2.nic.school...)
Analysis
IP Addresses
coder.school has two IP addresses: 13.248.169.48 and 76.223.54.146
synergymarine.com, zeinstra.com, ftp.studymate.net and two other host names share IP numbers with coder.school.
Name Servers
Two name servers handle the delegation for coder.school: ns3.afternic.com and ns4.afternic.com.
coder.school uses the same name servers as several other domains — among them squareye.com, sezonka.com, tahasson.com and two more.
The name servers of coder.school overlap at least partially with those of other domains — among them billigbilletter.com, happiers.com, qpcap.com and two more.
These name servers commonly appear in combination with the name servers verification-xca45ox5qyba6vycrpoay7.ns101.verify.hn.
Both ns3.afternic.com and ns4.afternic.com have a single IP address each — ns3.afternic.com resolves to 97.74.98.65 while ns4.afternic.com resolves to 173.201.66.65.