knowledge.tech - robtex.com

knowledge.tech

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4f04🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:8b3a🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.4Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.139.58🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmelnicoff.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2cae🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelnicoff.ns.cloudflare.com
A2803:f800:50::6ca2:c3ae🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmelnicoff.ns.cloudflare.com
A2a06:98c1:50::ac40:23ae🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmelnicoff.ns.cloudflare.com
A108.162.195.174🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelnicoff.ns.cloudflare.com
A162.159.44.174Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelnicoff.ns.cloudflare.com
A172.64.35.174🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmelnicoff.ns.cloudflare.com
NSnucum.ns.cloudflare.com
A2606:4700:50::a29f:2691🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnucum.ns.cloudflare.com
A2803:f800:50::6ca2:c291🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnucum.ns.cloudflare.com
A2a06:98c1:50::ac40:2291🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnucum.ns.cloudflare.com
A108.162.194.145🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnucum.ns.cloudflare.com
A162.159.38.145Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnucum.ns.cloudflare.com
A172.64.34.145🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnucum.ns.cloudflare.com
MXknowledge-tech.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::9🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00601.inbound.protection.outlook.com
A2a01:111:f403:ca04::d🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca09::3🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am6pr04cu00303.inbound.protection.outlook.com
A2a01:111:f403:ca09::7🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am9pr04cu00107.inbound.protection.outlook.com
A52.101.68.27🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00503.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A52.101.73.16🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A52.101.73.26🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as9pr05cu01302.inbound.protection.outlook.com
TXTfacebook-domain-verification=30q3oy78el3w7prnox4kwmtex64goa
TXTgoogle-site-verification=8EH-LSFN9r9YtpjLJkKG6MAOW511dIKmZfUBnl-058o
TXTgoogle-site-verification=_KREP5e4i-vxXzg5NDKaoHaoAen-ihCHJzxhplvDHyk
TXTgoogle-site-verification=rNtQ6hoofZU5hiLvKHhbXRdZW6iQOU7uw4jOF9Dewmg
TXTv=spf1 include:spf.protection.outlook.com -all
TXTv=verifydomain MS=2099895
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.79.4, 172.67.139.58
IPv6 hints2606:4700:3030::6815:4f04, 2606:4700:3034::ac43:8b3a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=154, name=cloudflare-ech.com
SOAmelnicoff.ns.cloudflare.comdns@cloudflare.com serial=2405847043

tech

DNSSEC🔒 Signed (DS record present)
NSns01.trs-dns.com ⭐
NSns.trs-dns.com
NSns01.trs-dns.net
NSns10.trs-dns.info
NSns10.trs-dns.org
SOAns.trs-dns.comtrs-ops@tucows.com serial=1784118835

Same first word

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knowledge.com
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knowledge.com.br
knowledge.tank.jp
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knowledge.co.th

Similar names

knowlegde.com
kwonglede.com
ledgeknow.com
degenkolw.dk
knolwedge.com
egdelwonk.com

DNS History

8 records (7 active, 1 former)

NSmelnicoff.ns.cloudflare.comnucum.ns.cloudflare.comMXknowledge-tech.mail.protection.outlook.comA104.21.79.4172.67.139.582606:4700:3030::6815:4f042606:4700:3034::ac43:8b3a2606:4700:3031::6815:4f04
●NSmelnicoff.ns.cloudflare.com2026-06-06 → 2026-07-15 · 2 obs
● 2026-06-06 13:23:16
● 2026-07-15 13:06:14
●NSnucum.ns.cloudflare.com2026-06-06 → 2026-07-15 · 2 obs
● 2026-06-06 13:23:16
● 2026-07-15 13:06:14
●MXknowledge-tech.mail.protection.outlook.com2026-06-06 → 2026-07-15 · 2 obs
● 2026-06-06 13:23:16
● 2026-07-15 13:06:14
●A104.21.79.42026-06-06 → 2026-07-15 · 2 obs
● 2026-06-06 13:23:16
● 2026-07-15 13:06:14
●A172.67.139.582026-06-06 → 2026-07-15 · 2 obs
● 2026-06-06 13:23:16
● 2026-07-15 13:06:14
●A2606:4700:3030::6815:4f042026-06-26 → 2026-07-15 · 3 obs
○ 2026-06-06 13:23:16
● 2026-06-26 18:33:08
● 2026-07-15 13:06:14
○A2606:4700:3031::6815:4f042026-06-06 → 2026-06-06 · 3 obs
● 2026-06-06 13:23:16
○ 2026-06-26 18:33:08
○ 2026-07-15 13:06:14
●A2606:4700:3034::ac43:8b3a2026-06-06 → 2026-07-15 · 2 obs
● 2026-06-06 13:23:16
● 2026-07-15 13:06:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
techns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info8 records
knowledge.technucum.ns.cloudflare.com, melnicoff.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.145

NS records: nucum.ns.cloudflare.com, melnicoff.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge.tech (unsigned zone)

⏱️ Timing

Total: 1420ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.139.58, 104.21.79.4
AAAA22606:4700:3030::6815:4f04, 2606:4700:3034::ac43:8b3a
NS2melnicoff.ns.cloudflare.com, nucum.ns.cloudflare.com
MX1knowledge-tech.mail.protection.outlook.c
TXT6facebook-domain-verification=30q3oy78el3, google-site-verification=8EH-LSFN9r9Ytpj...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1melnicoff.ns.cloudflare.com dns.cloudfla

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org...)

Analysis

IP Addresses

knowledge.tech directs to four IP numbers, which are 104.21.79.4, 172.67.139.58, 2606:4700:3030::6815:4f04 and 2606:4700:3034::ac43:8b3a.

Among the host names that share IP numbers with knowledge.tech are www.greenflight.ru, hereeng.info, www.graceharmony.org and two others.

Name Servers

knowledge.tech is served by two delegated name servers, melnicoff.ns.cloudflare.com and nucum.ns.cloudflare.com.

knowledge.tech has the same name server delegation as a number of other domains, such as agileurgentcare.com, drronen.com, encrypt-flz.click and two more.

At least some of knowledge.tech's name servers are shared with other domains, for example fireworksafety.com, combinaconunapolar.com, 903033.com and two more.

These name servers tend to be deployed in combination with the name servers leanna.ns.cloudflare.com and jen.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

melnicoff.ns.cloudflare.com carries IP addresses 108.162.195.174, 162.159.44.174 and 172.64.35.174, with 3 other addresses beyond those.

nucum.ns.cloudflare.com carries IP addresses 108.162.194.145, 162.159.38.145 and 172.64.34.145, with 3 other addresses beyond those.

Mail Servers

knowledge.tech routes its mail through a single mail server, knowledge-tech.mail.protection.outlook.com.

knowledge-tech.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.68.27, 52.101.73.4 and 52.101.73.16, along with 5 other.