classcentral.org - dns.ninja
classcentral.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.dnsimple-edge.com ⭐ | ||||||
| A | 2620:111:8004::53🇺🇸 AS327712620:111:8004::/48 DNSimple Corporation | ||||||
| A | 199.247.152.53🇺🇸 AS32771199.247.152.0/24 DNSimple Corporation | ||||||
| NS | ns2.dnsimple-edge.net | ||||||
| A | 2620:111:8005::53🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route | ||||||
| A | 199.247.153.53🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route | ||||||
| NS | ns3.dnsimple-edge.io | ||||||
| A | 2620:111:8006::53🇺🇸 AS327712620:111:8006::/48 DNSimple Corporation | ||||||
| A | 199.247.154.53🇺🇸 AS32771199.247.154.0/24 DNSimple Corporation | ||||||
| NS | ns4.dnsimple-edge.org | ||||||
| A | 2620:111:8007::53🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route | ||||||
| A | 199.247.155.53🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route | ||||||
| SOA | ns1.dnsimple-edge.comadmin@dnsimple.com serial=1552867169 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786387165 | ||||||
Same first word
classcentral.com |
classcentral.net |
classcentral.org |
Similar names
DNS History
14 records (4 active, 10 former)
○NSdede72015-07-21 → 2015-07-21 · 3 obs
○ 2015-11-17 06:09:46
○ 2026-08-10 18:55:58
○NSdedr1072015-11-17 → 2017-03-15 · 5 obs
● 2015-11-17 06:09:46
● 2017-03-15 04:24:36
○ 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
○NSns1.classcentral.com2015-11-17 → 2017-03-15 · 5 obs
● 2015-11-17 06:09:46
● 2017-03-15 04:24:36
○ 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
●NSns1.dnsimple-edge.com2026-08-10 → 2026-08-10 · 2 obs
● 2026-08-10 18:55:58
○NSns1.dnsimple.com2026-05-04 → 2026-05-04 · 3 obs
● 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
○NSns2.classcentral.com2015-11-17 → 2017-03-15 · 5 obs
● 2015-11-17 06:09:46
● 2017-03-15 04:24:36
○ 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
●NSns2.dnsimple-edge.net2026-05-04 → 2026-08-10 · 3 obs
● 2026-05-04 21:02:28
● 2026-08-10 18:55:58
●NSns3.dnsimple-edge.io2026-08-10 → 2026-08-10 · 2 obs
● 2026-08-10 18:55:58
○NSns3.dnsimple.com2026-05-04 → 2026-05-04 · 3 obs
● 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
●NSns4.dnsimple-edge.org2026-05-04 → 2026-08-10 · 3 obs
● 2026-05-04 21:02:28
● 2026-08-10 18:55:58
○NSvps2142872016-03-08 → 2017-03-15 · 5 obs
● 2016-03-08 17:47:28
● 2017-03-15 04:24:36
○ 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
○NSvps2268052015-11-17 → 2017-03-15 · 5 obs
● 2015-11-17 06:09:46
● 2017-03-15 04:24:36
○ 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
○A75.103.109.2252015-07-21 → 2015-07-21 · 3 obs
○ 2026-05-04 21:02:28
○ 2026-08-10 18:55:58
○CNAMEclasscentral.com2015-07-21 → 2015-07-21 · 3 obs
○ 2015-11-17 06:09:46
○ 2026-08-10 18:55:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| classcentral.org | ns3.dnsimple-edge.io, ns4.dnsimple-edge.org, ns1.dnsimple-edge.com, ns2.dnsimple-edge.net | 2 records |
✅ Authoritative Response
Server:199.247.153.53
NS records: ns3.dnsimple-edge.io, ns4.dnsimple-edge.org, ns1.dnsimple-edge.com, ns2.dnsimple-edge.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classcentral.org (unsigned zone)
⏱️ Timing
Total: 349ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1.dnsimple-edge.com, ns2.dnsimple-edge.net... |
| SOA | 1 | ns1.dnsimple-edge.com admin.dnsimple.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns4.dnsimple-edge.org, ns4.dnsimple-edge.org)
Analysis
Name Servers
The NS records for classcentral.org point to four name servers: ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org.
classcentral.org has at least partial name server overlap with other domains, such as lenusehealth.com, mutualfunds.com, capitaldental.com and two others.
It is common to see these name servers used together with name servers ns1.dnsimple.com and ns3.dnsimple.com.
ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org all point to exactly two IP numbers each: ns1.dnsimple-edge.com → 199.247.152.53 and 2620:111:8004::53; ns3.dnsimple-edge.io → 199.247.154.53 and 2620:111:8006::53; ns2.dnsimple-edge.net → 199.247.153.53 and 2620:111:8005::53; ns4.dnsimple-edge.org → 199.247.155.53 and 2620:111:8007::53.