classinstruct.com - dns.ninja
classinstruct.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a02:4780:4b:e4d9:b35e:a16e:de4f:2748 | ||||||
| A | 2a02:4780:4d:6131:a0d8:9c91:2d9c:1fa5 | ||||||
| A | 88.223.87.78 | ||||||
| A | 147.79.72.51 | ||||||
| NS | aurora.dns-parking.com ⭐ | ||||||
| A | 2606:4700:52::ac40:34c5🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aurora.dns-parking.com | ||||||
| A | 172.64.52.197🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aurora.dns-parking.com | ||||||
| NS | nebula.dns-parking.com | ||||||
| A | 2606:4700:5a::ac40:35e7🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nebula.dns-parking.com | ||||||
| A | 172.64.53.231🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nebula.dns-parking.com | ||||||
| SOA | aurora.dns-parking.comdns@hostinger.com 2026-11-05 #1 | ||||||
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=1794395976 | ||||||
Same first word
classinstruct.com |
Similar names
DNS History
26 records (6 active, 20 former)
●NSaurora.dns-parking.com2026-09-19 → 2026-11-11 · 2 obs
● 2026-09-19 01:31:30
● 2026-11-11 11:23:06
● 2026-11-11 11:23:06
●NSnebula.dns-parking.com2026-09-19 → 2026-11-11 · 2 obs
● 2026-09-19 01:31:30
● 2026-11-11 11:23:06
● 2026-11-11 11:23:06
○A147.79.72.2452026-11-11 → 2026-11-11 · 4 obs
○ 2026-11-04 21:56:40
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
●A147.79.72.512026-11-11 → 2026-11-11 · 2 obs
○ 2026-11-11 06:14:50
● 2026-11-11 11:23:06
● 2026-11-11 11:23:06
○A147.79.79.422026-11-11 → 2026-11-11 · 3 obs
○ 2026-11-11 03:17:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
○A147.79.79.512026-11-11 → 2026-11-11 · 4 obs
○ 2026-11-04 21:56:40
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
○A148.135.128.1382026-11-04 → 2026-11-04 · 4 obs
○ 2026-11-04 17:36:20
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
○A185.77.97.22026-09-19 → 2026-09-19 · 3 obs
● 2026-09-19 01:31:30
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○A195.200.9.2442026-11-04 → 2026-11-04 · 4 obs
○ 2026-09-19 01:31:30
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
○A2a02:4780:26:26d7:93de:cb0b:f092:d7712026-09-19 → 2026-09-19 · 3 obs
● 2026-09-19 01:31:30
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○A2a02:4780:26:bf98:c003:d341:9f53:c7b52026-11-04 → 2026-11-04 · 4 obs
○ 2026-09-19 01:31:30
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
○A2a02:4780:34:a3dc:3359:908d:b5a1:799f2026-09-19 → 2026-09-19 · 3 obs
● 2026-09-19 01:31:30
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○A2a02:4780:35:a684:7f95:1139:860c:466a2026-11-04 → 2026-11-04 · 4 obs
○ 2026-09-19 01:31:30
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
○A2a02:4780:4b:855a:639:6c6:23eb:c0d62026-11-11 → 2026-11-11 · 4 obs
○ 2026-11-04 21:56:40
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
●A2a02:4780:4b:e4d9:b35e:a16e:de4f:27482026-11-11 → 2026-11-11 · 2 obs
○ 2026-11-11 06:14:50
● 2026-11-11 11:23:06
● 2026-11-11 11:23:06
○A2a02:4780:4c:261a:6ce9:5342:8b6d:2b852026-11-11 → 2026-11-11 · 3 obs
○ 2026-11-11 03:17:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
●A2a02:4780:4d:6131:a0d8:9c91:2d9c:1fa52026-11-11 → 2026-11-11 · 2 obs
○ 2026-11-11 06:14:50
● 2026-11-11 11:23:06
● 2026-11-11 11:23:06
○A2a02:4780:4d:63d8:6eba:87d:b69e:4fe52026-11-11 → 2026-11-11 · 3 obs
○ 2026-11-11 03:17:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
○A2a02:4780:4d:cb07:c4b3:9fe8:d7cf:9d112026-11-11 → 2026-11-11 · 4 obs
○ 2026-11-04 21:56:40
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 03:17:06
○ 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
○A2a02:4780:4e:df38:d8d1:978:ac9f:7c8f2026-11-04 → 2026-11-04 · 4 obs
○ 2026-11-04 17:36:20
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
○A2a02:4780:50:23d6:a5c1:746:7ab2:b6b92026-11-04 → 2026-11-04 · 4 obs
○ 2026-11-04 17:36:20
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
○A77.37.76.1972026-11-04 → 2026-11-04 · 4 obs
○ 2026-11-04 17:36:20
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
● 2026-11-04 21:56:40
○ 2026-11-11 03:17:06
○ 2026-11-11 11:23:06
○A88.223.87.412026-11-11 → 2026-11-11 · 3 obs
○ 2026-11-11 03:17:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
● 2026-11-11 06:14:50
○ 2026-11-11 11:23:06
●A88.223.87.782026-11-11 → 2026-11-11 · 2 obs
○ 2026-11-11 06:14:50
● 2026-11-11 11:23:06
● 2026-11-11 11:23:06
○A89.116.109.2432026-09-19 → 2026-09-19 · 3 obs
● 2026-09-19 01:31:30
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○ 2026-11-04 17:36:20
○ 2026-11-11 11:23:06
○A91.108.103.952026-11-04 → 2026-11-04 · 4 obs
○ 2026-09-19 01:31:30
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
● 2026-11-04 17:36:20
○ 2026-11-04 21:56:40
○ 2026-11-11 11:23:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| classinstruct.com | aurora.dns-parking.com, nebula.dns-parking.com | 4 records |
✅ Authoritative Response
Server:172.64.53.231
NS records: aurora.dns-parking.com, nebula.dns-parking.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: 263ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 145.223.124.75, 88.223.87.221 |
| AAAA | 2 | 2a02:4780:4c:f988:e6c2:9c9b:c30a:cd3f, 2a02:4780:4d:598:f512:85b:28ef:1a61 |
| NS | 2 | nebula.dns-parking.com, aurora.dns-parking.com |
| SOA | 1 | aurora.dns-parking.com dns.hostinger.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (aurora.dns-parking.com, aurora.dns-parking.com, nebula.dns-parking.com...)
Analysis
IP Addresses
classinstruct.com directs to four IP numbers, which are 88.223.87.78, 147.79.72.51, 2a02:4780:4b:e4d9:b35e:a16e:de4f:2748 and 2a02:4780:4d:6131:a0d8:9c91:2d9c:1fa5.
Name Servers
classinstruct.com is served by two delegated name servers, aurora.dns-parking.com and nebula.dns-parking.com.
Each of the two host names carries two IP addresses: aurora.dns-parking.com points to 172.64.52.197 and 2606:4700:52::ac40:34c5, and nebula.dns-parking.com points to 172.64.53.231 and 2606:4700:5a::ac40:35e7.