classwork.ir - dns.ninja

classwork.ir

DNSSEC⚠️ Not signed
A185.143.233.235🇮🇷 ARVANCLOUD-CDN-IR185.143.233.0/24
A185.143.234.235🇮🇷 ARVANCLOUD-CDN-IR185.143.234.0/24
NSk.ns.arvancdn.ir ⭐
A185.143.232.253🇮🇷 ARVANCLOUD-CDN-IR185.143.232.0/24
NSx.ns.arvancdn.ir
SOAk.ns.arvancdn.irhostmaster@arvancloud.ir serial=1781107521

ir

DNSSEC⚠️ Not signed
NSa.nic.ir ⭐
NSb.nic.ir
NSc.nic.ir
NSd.nic.ir
SOAa.nic.irinfo@nic.ir serial=2606201615

Same first word

classwork.org.in
classwork.de
classwork.ir
classwork.xyz
classwork.com
classwork.net
classwork.in
classwork.school
classwork.co
classwork.co.uk
classwork.org
classwork.in.ua
classwork.ru

Similar names

crosswalk.com.au
workclass.cl
crosswalk.com
crosswalk.ru
crosswalk.pw
crosswalk.us
crosswalk.co
crosswalk.org
crosswalk.jp
crosswalk.cc
crosswalk.online
workclass.co
crosswalk.church
crosswalk.info
crosswalk.sakura.ne.jp
crosswalk.nl
workclass.dk
crosswakl.com
workclass.com
crosswalk.it
crosswalk.lighting
workclass.com.br
caslworks.com
crosswalk.ch
crosswalk.eu
crosswalk.me
crosswalk.co.jp
crosswalk.net

DNS History

9 records (4 active, 5 former)

20192020202120222023202420252026NSk.ns.arvancdn.irx.ns.arvancdn.irns.classwork.irMXmail.classwork.irA185.143.233.235185.143.234.235185.143.233.234185.143.234.23494.232.174.3
●NSk.ns.arvancdn.ir2026-03-24 → 2026-06-20 · 3 obs
○ 2018-09-14 05:47:06
● 2026-03-24 00:46:26
● 2026-06-20 13:05:18
○NSns.classwork.ir2018-09-14 → 2018-09-14 · 3 obs
● 2018-09-14 05:47:06
○ 2026-03-24 00:46:26
○ 2026-06-20 13:05:18
●NSx.ns.arvancdn.ir2026-03-24 → 2026-06-20 · 3 obs
○ 2018-09-14 05:47:06
● 2026-03-24 00:46:26
● 2026-06-20 13:05:18
○MXmail.classwork.ir2018-09-14 → 2018-09-14 · 3 obs
● 2018-09-14 05:47:06
○ 2026-03-24 00:46:26
○ 2026-06-20 13:05:18
○A185.143.233.2342026-05-26 → 2026-05-26 · 4 obs
○ 2026-05-19 03:25:52
● 2026-05-26 18:10:46
○ 2026-06-07 17:12:46
○ 2026-06-20 13:05:18
●A185.143.233.2352026-03-24 → 2026-06-20 · 7 obs
○ 2018-09-14 05:47:06
● 2026-03-24 00:46:26
● 2026-05-19 03:25:52
○ 2026-05-26 18:10:46
● 2026-06-07 17:12:46
○ 2026-06-14 13:25:48
● 2026-06-20 13:05:18
○A185.143.234.2342026-05-26 → 2026-05-26 · 4 obs
○ 2026-05-19 03:25:52
● 2026-05-26 18:10:46
○ 2026-06-07 17:12:46
○ 2026-06-20 13:05:18
●A185.143.234.2352026-03-24 → 2026-06-20 · 7 obs
○ 2018-09-14 05:47:06
● 2026-03-24 00:46:26
● 2026-05-19 03:25:52
○ 2026-05-26 18:10:46
● 2026-06-07 17:12:46
○ 2026-06-14 13:25:48
● 2026-06-20 13:05:18
○A94.232.174.32018-09-14 → 2018-09-14 · 3 obs
● 2018-09-14 05:47:06
○ 2026-03-24 00:46:26
○ 2026-06-20 13:05:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ira.nic.ir, c.nic.ir, b.nic.ir, d.nic.ir8 records
classwork.irx.ns.arvancdn.ir, k.ns.arvancdn.ir-

✅ Authoritative Response

Server:185.143.235.253

NS records: x.ns.arvancdn.ir, k.ns.arvancdn.ir

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at ir: Error: DNS query timeout: 193.189.123.2 for DNSKEY ir

⏱️ Timing

Total: 3604ms | Queries: -

📄 Records

TypeCountSample Data
A2185.143.234.235, 185.143.233.235
NS2k.ns.arvancdn.ir, x.ns.arvancdn.ir
SOA1k.ns.arvancdn.ir hostmaster.arvancloud.i

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.nic.ir, b.nic.ir, c.nic.ir...)

Analysis

IP Addresses

classwork.ir has two IP addresses: 185.143.233.235 and 185.143.234.235

mhaghshenas.ir, ns2.hantana.org, sazehsazan.com plus two other host names have IP numbers in common with classwork.ir.

Name Servers

classwork.ir uses two name servers for its delegation: k.ns.arvancdn.ir and x.ns.arvancdn.ir.

The name server configuration of classwork.ir is shared with other domains, for instance synstyle.ir, radiobimeh.com, karbaladcms.ir and two others.

The name servers of classwork.ir overlap at least partially with those of other domains — among them roboeq.ir, arktour.ir, snd360.ir and two more.

These name servers commonly appear in delegations together with z.ns.arvancdn.ir, q.ns.arvancdn.ir, a.ns.arvancdn.ir and 7 other.

Host names resolving to a single IP address:

k.ns.arvancdn.ir has the IP address 185.143.232.253.