racknowledge.com - dns.ninja

racknowledge.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:882e🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:3e87🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.62.135Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.136.46🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjo.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aac🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjo.ns.cloudflare.com
A2803:f800:50::6ca2:c0ac🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjo.ns.cloudflare.com
A2a06:98c1:50::ac40:20ac🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjo.ns.cloudflare.com
A108.162.192.172🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjo.ns.cloudflare.com
A172.64.32.172🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjo.ns.cloudflare.com
A173.245.58.172🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjo.ns.cloudflare.com
NSkobe.ns.cloudflare.com
A2606:4700:58::a29f:2cc1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkobe.ns.cloudflare.com
A2803:f800:50::6ca2:c3c1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkobe.ns.cloudflare.com
A2a06:98c1:50::ac40:23c1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkobe.ns.cloudflare.com
A108.162.195.193🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkobe.ns.cloudflare.com
A162.159.44.193Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkobe.ns.cloudflare.com
A172.64.35.193🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkobe.ns.cloudflare.com
MXracknowledge-com.mail.protection.outlook.com ⭐
A2a01:111:f403:c942::1🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt3pr01cu00701.inbound.protection.outlook.com
A2a01:111:f403:c942::2🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt3pr01cu00602.inbound.protection.outlook.com
A2a01:111:f403:c942::3🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yt6pr01cu00103.inbound.protection.outlook.com
A2a01:111:f403:c944::1🇨🇦 Microsoft2a01:111:f000::/36
PTRmail-yqzpr01cu01001.inbound.protection.outlook.com
A52.101.190.0🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt5pr01cu00100.inbound.protection.outlook.com
A52.101.190.1🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt3pr01cu00701.inbound.protection.outlook.com
A52.101.190.3🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yt6pr01cu00103.inbound.protection.outlook.com
A52.101.192.0🇨🇦 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-yqzpr01cu00900.inbound.protection.outlook.com
TXTv=spf1 a include:spf.protection.outlook.com include:mailgun.org ip4:184.168.2...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.62.135, 172.67.136.46
IPv6 hints2606:4700:3030::ac43:882e, 2606:4700:3035::6815:3e87
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=177, name=cloudflare-ech.com
SOAjo.ns.cloudflare.comdns@cloudflare.com serial=2405283294

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=1782859781

Same first word

racknowledge.ca
racknowledge.com

Similar names

knowledgearc.net
carknowledge.info
carknowledge.com
arcknowledge.com
knowledgearc.com

DNS History

15 records (7 active, 8 former)

20162017201820192020202120222023202420252026NSjo.ns.cloudflare.comkobe.ns.cloudflare.comns69.domaincontrol.comns70.domaincontrol.comMXracknowledge-com.mail.protection.outlook.commail.racknowledge.comA104.21.62.135172.67.136.462606:4700:3030::ac43:882e2606:4700:3035::6815:3e87188.114.96.0188.114.97.0192.186.236.962a06:98c1:3120::2a06:98c1:3121::
●NSjo.ns.cloudflare.com2026-02-28 → 2026-06-30 · 3 obs
○ 2018-08-22 18:39:10
● 2026-02-28 13:36:20
● 2026-06-30 22:59:02
●NSkobe.ns.cloudflare.com2026-02-28 → 2026-06-30 · 3 obs
○ 2018-08-22 18:39:10
● 2026-02-28 13:36:20
● 2026-06-30 22:59:02
○NSns69.domaincontrol.com2015-06-29 → 2018-08-22 · 4 obs
● 2015-06-29 12:35:38
● 2018-08-22 18:39:10
○ 2026-02-28 13:36:20
○ 2026-06-30 22:59:02
○NSns70.domaincontrol.com2015-06-29 → 2018-08-22 · 4 obs
● 2015-06-29 12:35:38
● 2018-08-22 18:39:10
○ 2026-02-28 13:36:20
○ 2026-06-30 22:59:02
○MXmail.racknowledge.com2015-06-29 → 2017-01-08 · 4 obs
● 2015-06-29 12:35:38
● 2017-01-08 18:02:36
○ 2018-08-22 18:39:10
○ 2026-06-30 22:59:02
●MXracknowledge-com.mail.protection.outlook.com2018-08-22 → 2026-06-30 · 3 obs
○ 2017-01-08 18:02:36
● 2018-08-22 18:39:10
● 2026-06-30 22:59:02
●A104.21.62.1352026-05-07 → 2026-06-30 · 3 obs
○ 2026-02-28 13:36:20
● 2026-05-07 00:16:28
● 2026-06-30 22:59:02
●A172.67.136.462026-05-07 → 2026-06-30 · 3 obs
○ 2026-02-28 13:36:20
● 2026-05-07 00:16:28
● 2026-06-30 22:59:02
○A188.114.96.02026-02-28 → 2026-02-28 · 4 obs
○ 2018-08-22 18:39:10
● 2026-02-28 13:36:20
○ 2026-05-07 00:16:28
○ 2026-06-30 22:59:02
○A188.114.97.02026-02-28 → 2026-02-28 · 4 obs
○ 2018-08-22 18:39:10
● 2026-02-28 13:36:20
○ 2026-05-07 00:16:28
○ 2026-06-30 22:59:02
○A192.186.236.962015-06-29 → 2018-08-22 · 4 obs
● 2015-06-29 12:35:38
● 2018-08-22 18:39:10
○ 2026-02-28 13:36:20
○ 2026-06-30 22:59:02
●A2606:4700:3030::ac43:882e2026-05-07 → 2026-06-30 · 3 obs
○ 2026-02-28 13:36:20
● 2026-05-07 00:16:28
● 2026-06-30 22:59:02
●A2606:4700:3035::6815:3e872026-05-07 → 2026-06-30 · 3 obs
○ 2026-02-28 13:36:20
● 2026-05-07 00:16:28
● 2026-06-30 22:59:02
○A2a06:98c1:3120::2026-02-28 → 2026-02-28 · 4 obs
○ 2018-08-22 18:39:10
● 2026-02-28 13:36:20
○ 2026-05-07 00:16:28
○ 2026-06-30 22:59:02
○A2a06:98c1:3121::2026-02-28 → 2026-02-28 · 4 obs
○ 2018-08-22 18:39:10
● 2026-02-28 13:36:20
○ 2026-05-07 00:16:28
○ 2026-06-30 22:59:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
racknowledge.comkobe.ns.cloudflare.com, jo.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.172

NS records: kobe.ns.cloudflare.com, jo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for racknowledge.com (unsigned zone)

⏱️ Timing

Total: 116ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.136.46, 104.21.62.135
AAAA22606:4700:3030::ac43:882e, 2606:4700:3035::6815:3e87
NS2jo.ns.cloudflare.com, kobe.ns.cloudflare.com
MX1racknowledge-com.mail.protection.outlook
TXT1v=spf1 a include:spf.protection.outlook.
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1jo.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (kobe.ns.cloudflare.com, kobe.ns.cloudflare.com, kobe.ns.cloudflare.com...)

Analysis

IP Addresses

racknowledge.com has four IP addresses: 104.21.62.135, 172.67.136.46, 2606:4700:3030::ac43:882e and 2606:4700:3035::6815:3e87.

Among the host names that share IP numbers with racknowledge.com are openai-proxy.1609048470.workers.dev, www.portalblau.cat, cuevana4.me and two others.

Name Servers

racknowledge.com is served by two delegated name servers, jo.ns.cloudflare.com and kobe.ns.cloudflare.com.

racknowledge.com has the same name server delegation as a number of other domains, such as prvme.org, queensberry1867.us, qbrules.com and two more.

racknowledge.com shares at least some of its name servers with other domains, including gostargate.top, thetalka.com, ubiytsa-akame-jutsu.ru and two others.

These name servers are frequently paired with the name servers mark.ns.cloudflare.com and penny.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

jo.ns.cloudflare.com carries IP addresses 108.162.192.172, 172.64.32.172 and 173.245.58.172, with 3 other addresses beyond those.

kobe.ns.cloudflare.com carries IP addresses 108.162.195.193, 162.159.44.193 and 172.64.35.193, with 3 other addresses beyond those.

Mail Servers

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

racknowledge-com.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.190.0, 52.101.190.1 and 52.101.190.3, along with 5 other.