knowledgetree.courses - robtex.com

knowledgetree.courses

DNSSEC⚠️ Not signed
NSgrace.ns.cloudflare.com ⚠️ Not in zone NS records
A2606:4700:50::adf5:3a9f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A2803:f800:50::6ca2:c09f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgrace.ns.cloudflare.com
A2a06:98c1:50::ac40:209f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgrace.ns.cloudflare.com
A108.162.192.159🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A172.64.32.159🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A173.245.58.159🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
NStadeo.ns.cloudflare.com ⚠️ Not in zone NS records
A2606:4700:58::a29f:2cc5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
A2803:f800:50::6ca2:c3c5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtadeo.ns.cloudflare.com
A2a06:98c1:50::ac40:23c5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtadeo.ns.cloudflare.com
A108.162.195.197🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
A162.159.44.197Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
A172.64.35.197🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com

courses

DNSSEC🔒 Signed (DS record present)
NSa.nic.courses ⭐
NSb.nic.courses
NSc.nic.courses
NSx.nic.courses
NSy.nic.courses
NSz.nic.courses
SOAa.nic.coursesadmin@tldns.godaddy serial=1786666902
⚠️ On DNS blocklist: tif
⚠️ On DNS blocklist: spam-tlds

Same first word

knowledgetree.ca
knowledgetree.courses
knowledgetree.jp
knowledgetree.org
knowledgetree.co
knowledgetree.in
knowledgetree.com.sg
knowledgetree.us
knowledgetree.co.in
knowledgetree.cn
knowledgetree.info
knowledgetree.net

Similar names

treeknowledge.com
treeknowledge.ch

DNS History

2 records (2 active, 0 former)

NSgrace.ns.cloudflare.comtadeo.ns.cloudflare.com
●NSgrace.ns.cloudflare.com2026-07-26 → 2026-08-14 · 2 obs
● 2026-07-26 08:17:28
● 2026-08-14 01:19:18
●NStadeo.ns.cloudflare.com2026-07-26 → 2026-08-14 · 2 obs
● 2026-07-26 08:17:28
● 2026-08-14 01:19:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coursesa.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...12 records
knowledgetree.coursesgrace.ns.cloudflare.com, tadeo.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.197

NS records: grace.ns.cloudflare.com, tadeo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgetree.courses (unsigned zone)

⏱️ Timing

Total: 372ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, b.nic.courses, c.nic.courses...)

Analysis

Name Servers

knowledgetree.courses uses two name servers for its delegation: grace.ns.cloudflare.com and tadeo.ns.cloudflare.com.

knowledgetree.courses has the same name server delegation as a number of other domains, such as creativestudio.cyou, playgachi.cyou, purederma.beauty and two more.

knowledgetree.courses partially shares its NS delegation with several other domains, including kielkowscy.pl, elizabethstokerbruenig.com, amobbs.com and two others.

These name servers are regularly seen alongside austin.ns.cloudflare.com and pablo.ns.cloudflare.com as name servers.

Host names resolving to 6 IP numbers:

Hostname grace.ns.cloudflare.com directs to 108.162.192.159, 172.64.32.159 and 173.245.58.159 along with 3 other IP addresses.

Hostname tadeo.ns.cloudflare.com directs to 108.162.195.197, 162.159.44.197 and 172.64.35.197 along with 3 other IP addresses.