instructur.com - robtex.com

instructur.com

DNSSEC⚠️ Not signed
A2600:3c03::f03c:95ff:fe91:5d52🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies
A2600:3c03::f03c:95ff:feed:4d4f🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies
A66.175.209.179🇺🇸 AKAMAI-LINODE-AP66.175.208.0/21 Akamai Technologies
A96.126.111.165🇺🇸 AKAMAI-LINODE-AP96.126.104.0/21 Akamai Technologies
NSchangchang.ns.giantpanda.com ⭐ ⚠️ Not in zone NS records
A3.33.232.36🇺🇸 Amazon3.33.224.0/20
PTRab9e1958095d04f26.awsglobalaccelerator.com
NSxiangxiang.ns.giantpanda.com ⚠️ Not in zone NS records
A75.2.45.63🇺🇸 Amazon75.2.32.0/20
PTRab9e1958095d04f26.awsglobalaccelerator.com
SOAchangchang.ns.giantpanda.comadmin@giantpanda.com 2013-02-04 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Subdomains

canvas.instructur.com

Same first word

instructur.com

DNS History

15 records (6 active, 9 former)

20162017201820192020202120222023202420252026NSchangchang.ns.giantpanda.comxiangxiang.ns.giantpanda.combuy.internettraffic.comns1.dyna-ns.netns1.uniregistrymarket.linkns2.dyna-ns.netns2.uniregistrymarket.linksell.internettraffic.comA2600:3c03::f03c:95ff:fe91:5d522600:3c03::f03c:95ff:feed:4d4f66.175.209.17996.126.111.16554.215.31.11369.172.201.15369.172.201.208
○NSbuy.internettraffic.com2015-07-09 → 2016-03-12 · 4 obs
● 2015-07-09 19:59:36
● 2016-03-12 21:14:00
○ 2016-11-08 13:45:50
○ 2026-03-12 22:24:52
●NSchangchang.ns.giantpanda.com2026-02-19 → 2026-03-12 · 3 obs
○ 2017-04-19 07:16:18
● 2026-02-19 19:05:06
● 2026-03-12 22:24:52
○NSns1.dyna-ns.net2026-02-19 → 2026-03-12 · 2 obs
○ 2026-02-19 19:05:06
○ 2026-03-12 22:24:52
○NSns1.uniregistrymarket.link2016-11-08 → 2017-04-19 · 5 obs
○ 2016-03-12 21:14:00
● 2016-11-08 13:45:50
● 2017-04-19 07:16:18
○ 2026-02-19 19:05:06
○ 2026-03-12 22:24:52
○NSns2.dyna-ns.net2026-02-19 → 2026-03-12 · 2 obs
○ 2026-02-19 19:05:06
○ 2026-03-12 22:24:52
○NSns2.uniregistrymarket.link2016-11-08 → 2017-04-19 · 5 obs
○ 2016-03-12 21:14:00
● 2016-11-08 13:45:50
● 2017-04-19 07:16:18
○ 2026-02-19 19:05:06
○ 2026-03-12 22:24:52
○NSsell.internettraffic.com2015-07-09 → 2016-03-12 · 4 obs
● 2015-07-09 19:59:36
● 2016-03-12 21:14:00
○ 2016-11-08 13:45:50
○ 2026-03-12 22:24:52
●NSxiangxiang.ns.giantpanda.com2026-02-19 → 2026-03-12 · 3 obs
○ 2017-04-19 07:16:18
● 2026-02-19 19:05:06
● 2026-03-12 22:24:52
●A2600:3c03::f03c:95ff:fe91:5d522026-02-19 → 2026-03-12 · 3 obs
○ 2017-04-19 07:16:18
● 2026-02-19 19:05:06
● 2026-03-12 22:24:52
●A2600:3c03::f03c:95ff:feed:4d4f2026-02-19 → 2026-03-12 · 3 obs
○ 2017-04-19 07:16:18
● 2026-02-19 19:05:06
● 2026-03-12 22:24:52
○A54.215.31.1132026-02-19 → 2026-03-12 · 2 obs
○ 2026-02-19 19:05:06
○ 2026-03-12 22:24:52
●A66.175.209.1792026-02-19 → 2026-03-12 · 3 obs
○ 2017-04-19 07:16:18
● 2026-02-19 19:05:06
● 2026-03-12 22:24:52
○A69.172.201.1532016-11-08 → 2017-04-19 · 5 obs
○ 2016-03-12 21:14:00
● 2016-11-08 13:45:50
● 2017-04-19 07:16:18
○ 2026-02-19 19:05:06
○ 2026-03-12 22:24:52
○A69.172.201.2082015-07-09 → 2016-03-12 · 4 obs
● 2015-07-09 19:59:36
● 2016-03-12 21:14:00
○ 2016-11-08 13:45:50
○ 2026-03-12 22:24:52
●A96.126.111.1652026-02-19 → 2026-03-12 · 3 obs
○ 2017-04-19 07:16:18
● 2026-02-19 19:05:06
● 2026-03-12 22:24:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
instructur.comchangchang.ns.giantpanda.com, xiangxiang.ns.giantpanda.com2 records

✅ Authoritative Response

Server: 75.2.45.63

NS records: changchang.ns.giantpanda.com, xiangxiang.ns.giantpanda.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructur.com (unsigned zone)

⏱️ Timing

Total: 376ms | Queries: -

📄 Records

TypeCountSample Data
A266.175.209.179, 96.126.111.165
AAAA22600:3c03::f03c:95ff:fe91:5d52, 2600:3c03::f03c:95ff:feed:4d4f
SOA1changchang.ns.giantpanda.com admin.giant

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (changchang.ns.giantpanda.com, xiangxiang.ns.giantpanda.com)

Analysis

Hierarchy

instructur.com is parent of canvas.instructur.com.

IP Addresses

instructur.com points to four IP numbers: 2600:3c03::f03c:95ff:fe91:5d52, 2600:3c03::f03c:95ff:feed:4d4f, 66.175.209.179 and 96.126.111.165.

Other host names, for instance brokenstar.com, 1004mini.com, porcheusa.com, shimmer.org and samsungplay.com.cn share IP numbers with instructur.com.

Name Servers

instructur.com's delegation is to two name servers changchang.ns.giantpanda.com and xiangxiang.ns.giantpanda.com.

instructur.com shares the same name server configuration as other domains, such as ns1.qprno.com, 9animetv.com, videowww.pinkword.com, edudel.com and www.tiping.com.

instructur.com at least partially shares its name servers with other domains, for instance nlroms.com, kfmp.com, sapatencuiala.ro.net, gmcairsoft.ro.net and www.rajkumaragromachinery.com.

These name servers are commonly used together with jiapanpan.ns.giantpanda.com, baobao.ns.giantpanda.com, yangguang.ns.giantpanda.com, xinxin.ns.giantpanda.com, mingming.ns.giantpanda.com, meilan.ns.giantpanda.com, qizai.ns.giantpanda.com and yalun.ns.giantpanda.com.

Host names with a single IP:

changchang.ns.giantpanda.com resolves to 3.33.232.36.

xiangxiang.ns.giantpanda.com resolves to 75.2.45.63.