it-knowledge.info - dns.ninja

it-knowledge.info

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:aa68🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:1c3f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.28.63Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.170.104🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbill.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b4a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbill.ns.cloudflare.com
A2803:f800:50::6ca2:c14a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbill.ns.cloudflare.com
A2a06:98c1:50::ac40:214a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbill.ns.cloudflare.com
A108.162.193.74🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbill.ns.cloudflare.com
A172.64.33.74🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbill.ns.cloudflare.com
A173.245.59.74🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbill.ns.cloudflare.com
NSleah.ns.cloudflare.com
A2606:4700:50::adf5:3a81🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleah.ns.cloudflare.com
A2803:f800:50::6ca2:c081🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleah.ns.cloudflare.com
A2a06:98c1:50::ac40:2081🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleah.ns.cloudflare.com
A108.162.192.129🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleah.ns.cloudflare.com
A172.64.32.129🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleah.ns.cloudflare.com
A173.245.58.129🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleah.ns.cloudflare.com
MXsmtp.nelsonbaptista.me ⭐
TXTv=spf1 mx mx:smtp.nelsonbaptista.me a:relay1.ptmail.sapo.pt a:relay2.ptmail.s...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.28.63, 172.67.170.104
IPv6 hints2606:4700:3031::ac43:aa68, 2606:4700:3037::6815:1c3f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=114, name=cloudflare-ech.com
SOAbill.ns.cloudflare.comdns@cloudflare.com serial=2405913952

info

DNSSEC🔒 Signed (DS record present)
NSa0.info.afilias-nst.info ⭐
NSa2.info.afilias-nst.info
NSb0.info.afilias-nst.org ⚠️ Not in parent delegation
NSb2.info.afilias-nst.org ⚠️ Not in parent delegation
NSc0.info.afilias-nst.info
NSd0.info.afilias-nst.org ⚠️ Not in parent delegation
SOAa0.info.afilias-nst.infohostmaster@donuts.email serial=1780922576

Same first word

it-knowledge.com
it-knowledge.co.at
it-knowledge.nl
it-knowledge.at
it-knowledge.dk
it-knowledge.ru
it-knowledge.ge
it-knowledge.info
it-knowledge.de
it-knowledge.be

Similar names

knowledge-it.de

DNS History

18 records (7 active, 11 former)

20162017201820192020202120222023202420252026NSbill.ns.cloudflare.comleah.ns.cloudflare.comns1.he.netns2.he.netns3.he.netns4.he.netns5.he.netMXsmtp.nelsonbaptista.mekernel-1.it-knowledge.infokernel.dynip.sapo.ptA104.21.28.63172.67.170.1042606:4700:3031::ac43:aa682606:4700:3037::6815:1c3f104.28.18.210104.28.19.2102400:cb00:2048:1::681c:12d22400:cb00:2048:1::681c:13d2
●NSbill.ns.cloudflare.com2015-11-18 → 2026-06-08 · 3 obs
○ 2015-07-06 08:21:28
● 2015-11-18 00:51:12
● 2026-06-08 13:32:30
●NSleah.ns.cloudflare.com2015-11-18 → 2026-06-08 · 3 obs
○ 2015-07-06 08:21:28
● 2015-11-18 00:51:12
● 2026-06-08 13:32:30
○NSns1.he.net2015-07-06 → 2015-07-06 · 3 obs
● 2015-07-06 08:21:28
○ 2015-11-18 00:51:12
○ 2026-06-08 13:32:30
○NSns2.he.net2015-07-06 → 2015-07-06 · 3 obs
● 2015-07-06 08:21:28
○ 2015-11-18 00:51:12
○ 2026-06-08 13:32:30
○NSns3.he.net2015-07-06 → 2015-07-06 · 3 obs
● 2015-07-06 08:21:28
○ 2015-11-18 00:51:12
○ 2026-06-08 13:32:30
○NSns4.he.net2015-07-06 → 2015-07-06 · 3 obs
● 2015-07-06 08:21:28
○ 2015-11-18 00:51:12
○ 2026-06-08 13:32:30
○NSns5.he.net2015-07-06 → 2015-07-06 · 3 obs
● 2015-07-06 08:21:28
○ 2015-11-18 00:51:12
○ 2026-06-08 13:32:30
○MXkernel-1.it-knowledge.info2015-07-06 → 2015-07-06 · 3 obs
● 2015-07-06 08:21:28
○ 2015-11-18 00:51:12
○ 2026-06-08 13:32:30
○MXkernel.dynip.sapo.pt2015-11-18 → 2017-03-28 · 5 obs
○ 2015-07-06 08:21:28
● 2015-11-18 00:51:12
● 2017-03-28 16:15:32
○ 2026-03-25 14:59:52
○ 2026-06-08 13:32:30
●MXsmtp.nelsonbaptista.me2026-03-25 → 2026-06-08 · 3 obs
○ 2017-03-28 16:15:32
● 2026-03-25 14:59:52
● 2026-06-08 13:32:30
●A104.21.28.632026-03-25 → 2026-06-08 · 3 obs
○ 2017-03-28 16:15:32
● 2026-03-25 14:59:52
● 2026-06-08 13:32:30
○A104.28.18.2102015-11-18 → 2017-03-28 · 4 obs
● 2015-11-18 00:51:12
● 2017-03-28 16:15:32
○ 2026-03-25 14:59:52
○ 2026-06-08 13:32:30
○A104.28.19.2102015-11-18 → 2017-03-28 · 4 obs
● 2015-11-18 00:51:12
● 2017-03-28 16:15:32
○ 2026-03-25 14:59:52
○ 2026-06-08 13:32:30
●A172.67.170.1042026-03-25 → 2026-06-08 · 3 obs
○ 2017-03-28 16:15:32
● 2026-03-25 14:59:52
● 2026-06-08 13:32:30
○A2400:cb00:2048:1::681c:12d22015-11-18 → 2017-03-28 · 4 obs
● 2015-11-18 00:51:12
● 2017-03-28 16:15:32
○ 2026-03-25 14:59:52
○ 2026-06-08 13:32:30
○A2400:cb00:2048:1::681c:13d22015-11-18 → 2017-03-28 · 4 obs
● 2015-11-18 00:51:12
● 2017-03-28 16:15:32
○ 2026-03-25 14:59:52
○ 2026-06-08 13:32:30
●A2606:4700:3031::ac43:aa682026-03-25 → 2026-06-08 · 3 obs
○ 2017-03-28 16:15:32
● 2026-03-25 14:59:52
● 2026-06-08 13:32:30
●A2606:4700:3037::6815:1c3f2026-03-25 → 2026-06-08 · 3 obs
○ 2017-03-28 16:15:32
● 2026-03-25 14:59:52
● 2026-06-08 13:32:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
infoa0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info-
it-knowledge.infobill.ns.cloudflare.com, leah.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.129

NS records: bill.ns.cloudflare.com, leah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for it-knowledge.info (unsigned zone)

⏱️ Timing

Total: 626ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.28.63, 172.67.170.104
AAAA22606:4700:3031::ac43:aa68, 2606:4700:3037::6815:1c3f
NS2bill.ns.cloudflare.com, leah.ns.cloudflare.com
MX1smtp.nelsonbaptista.me (pri: 100)
TXT1v=spf1 mx mx:smtp.nelsonbaptista.me a:re
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bill.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

it-knowledge.info maps to 4 IP numbers, specifically 104.21.28.63, 172.67.170.104, 2606:4700:3031::ac43:aa68 and 2606:4700:3037::6815:1c3f.

Two other host names, along with www.tiendakilroy.com.ar, mitaotu.com and mail.eatdessertfirst.ca, also share IP numbers with it-knowledge.info.

Name Servers

it-knowledge.info uses two name servers for its delegation: bill.ns.cloudflare.com and leah.ns.cloudflare.com.

it-knowledge.info shares its NS records with other domains, for example assadi.co.il, mybaby.com.ua, bloganda.com and two others.

The name servers of it-knowledge.info overlap at least partially with those of other domains — among them ditelli.com, ciifrol.com, webdevtools.sa.com and two more.

The name servers kai.ns.cloudflare.com, mark.ns.cloudflare.com and gracie.ns.cloudflare.com are commonly seen alongside these name servers.

DNS names with 6 IP addresses:

bill.ns.cloudflare.com resolves to 108.162.193.74, 172.64.33.74 and 173.245.59.74, along with three other IP addresses.

leah.ns.cloudflare.com resolves to 108.162.192.129, 172.64.32.129 and 173.245.58.129, along with three other IP addresses.

Mail Servers

The sole mail server for it-knowledge.info is smtp.nelsonbaptista.me.

Mail server setup for it-knowledge.info matches that of other domains, among them nelsonbaptista.me.