knowledge.com.br - robtex.com

knowledge.com.br

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:4dab🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:d299🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.77.171Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.153🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdeborah.ns.cloudflare.com ⭐
A2606:4700:50::a29f:266f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdeborah.ns.cloudflare.com
A2803:f800:50::6ca2:c26f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdeborah.ns.cloudflare.com
A2a06:98c1:50::ac40:226f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdeborah.ns.cloudflare.com
A108.162.194.111🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdeborah.ns.cloudflare.com
A162.159.38.111Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdeborah.ns.cloudflare.com
A172.64.34.111🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdeborah.ns.cloudflare.com
NSnolan.ns.cloudflare.com
A2606:4700:58::a29f:2c38🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnolan.ns.cloudflare.com
A2803:f800:50::6ca2:c338🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnolan.ns.cloudflare.com
A2a06:98c1:50::ac40:2338🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnolan.ns.cloudflare.com
A108.162.195.56🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnolan.ns.cloudflare.com
A162.159.44.56Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnolan.ns.cloudflare.com
A172.64.35.56🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnolan.ns.cloudflare.com
MXmx2.zoho.com ⭐
A204.141.33.44🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx6.zoho.com
PTRmx7.zoho.com
PTRmx8.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
MXmx.zoho.com(20)
A136.143.191.44🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
A204.141.33.44🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx6.zoho.com
PTRmx7.zoho.com
PTRmx8.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
MXmx3.zoho.com(50)
A136.143.191.44🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
TXTMS=ms70425472
TXTv=spf1 include:zohomail.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.77.171, 172.67.210.153
IPv6 hints2606:4700:3036::6815:4dab, 2606:4700:3037::ac43:d299
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=101, name=cloudflare-ech.com
SOAdeborah.ns.cloudflare.comdns@cloudflare.com serial=2403416901

com.br

DNSSEC⚠️ Not signed
NSa.dns.br ⭐ ⚠️ Not in parent delegation
NSb.dns.br ⚠️ Not in parent delegation
NSc.dns.br ⚠️ Not in parent delegation
NSd.dns.br ⚠️ Not in parent delegation
NSe.dns.br ⚠️ Not in parent delegation
NSf.dns.br ⚠️ Not in parent delegation
SOAa.dns.brhostmaster@registro.br serial=2026129376
rank #518763 globally
rank #3910 in the tld
WOT: SAFE (69/100)

Same first word

knowledge.company
knowledge.pl
knowledge.pk
knowledge.community
knowledge.kitchen
knowledge.li
knowledge.at
knowledge.la
knowledge.org.ua
knowledge.it
knowledge.gr
knowledge.edu.krd
knowledge.ee
knowledge.tv
knowledge.edu.pl
knowledge.city
knowledge.org.tw
knowledge.cz
knowledge.bio
knowledge.life
knowledge.no
knowledge.cards
knowledge.cafe
knowledge.services
knowledge.homes
knowledge.store
knowledge.de.com
knowledge.capital
knowledge.com.pa
knowledge.su
knowledge.sk
knowledge.ca
knowledge.ru
knowledge.ch
knowledge.io
knowledge.co.uk
knowledge.systems
knowledge.works
knowledge.productions
knowledge.chat
knowledge.center
knowledge.com.kw
knowledge.network
knowledge.university
knowledge.builders
knowledge.de
knowledge.info
knowledge.academy
knowledge.asia
knowledge.lv
knowledge.ly
knowledge.com.in
knowledge.wiki
knowledge.net.nz
knowledge.or.kr
knowledge.org.uk
knowledge.ne.jp
knowledge.kr
knowledge.no-ip.org
knowledge.agency
knowledge.buzz
knowledge.cn.com
knowledge.co.th
knowledge.be
knowledge.org
knowledge.kz
knowledge.ie
knowledge.net
knowledge.com.br
knowledge.tank.jp

Similar names

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

DNS History

28 records (9 active, 19 former)

201020122014201620182020202220242026NSdeborah.ns.cloudflare.comnolan.ns.cloudflare.comns1.dominios.uol.com.brns1.zoneedit.comns2.dominios.uol.com.brns3.dominios.uol.com.brns4.zoneedit.comMXmx.zoho.commx2.zoho.commx3.zoho.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comms27697964.msv1.invalidA104.21.77.171172.67.210.1532606:4700:3036::6815:4dab2606:4700:3037::ac43:d299187.17.111.102188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::75.125.224.130
●NSdeborah.ns.cloudflare.com2026-03-10 → 2026-05-09 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-05-09 15:48:34
●NSnolan.ns.cloudflare.com2026-03-10 → 2026-05-09 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-05-09 15:48:34
○NSns1.dominios.uol.com.br2015-07-17 → 2019-01-27 · 5 obs
○ 2009-01-10 21:06:32
● 2015-07-17 16:12:38
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○NSns1.zoneedit.com2009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 21:06:32
○ 2015-07-17 16:12:38
○ 2026-05-09 15:48:34
○NSns2.dominios.uol.com.br2015-07-17 → 2019-01-27 · 5 obs
○ 2009-01-10 21:06:32
● 2015-07-17 16:12:38
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○NSns3.dominios.uol.com.br2015-07-17 → 2019-01-27 · 5 obs
○ 2009-01-10 21:06:32
● 2015-07-17 16:12:38
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○NSns4.zoneedit.com2009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 21:06:32
○ 2015-07-17 16:12:38
○ 2026-05-09 15:48:34
○MXalt1.aspmx.l.google.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXalt2.aspmx.l.google.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXaspmx.l.google.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXaspmx2.googlemail.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXaspmx3.googlemail.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXaspmx4.googlemail.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXaspmx5.googlemail.com2009-01-10 → 2019-01-27 · 4 obs
● 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○MXms27697964.msv1.invalid2019-01-27 → 2019-01-27 · 4 obs
○ 2009-01-10 21:06:32
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
●MXmx.zoho.com2026-03-10 → 2026-05-09 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-05-09 15:48:34
●MXmx2.zoho.com2026-03-10 → 2026-05-09 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-05-09 15:48:34
●MXmx3.zoho.com2026-03-10 → 2026-05-09 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-05-09 15:48:34
●A104.21.77.1712026-03-10 → 2026-05-09 · 5 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
○ 2026-03-24 03:29:50
● 2026-03-31 05:02:46
● 2026-05-09 15:48:34
●A172.67.210.1532026-03-10 → 2026-05-09 · 5 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
○ 2026-03-24 03:29:50
● 2026-03-31 05:02:46
● 2026-05-09 15:48:34
○A187.17.111.1022015-07-17 → 2019-01-27 · 5 obs
○ 2009-01-10 21:06:32
● 2015-07-17 16:12:38
● 2019-01-27 21:54:14
○ 2026-03-10 14:21:34
○ 2026-05-09 15:48:34
○A188.114.96.02026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-05-09 15:48:34
○A188.114.97.02026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-05-09 15:48:34
●A2606:4700:3036::6815:4dab2026-03-10 → 2026-05-09 · 5 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
○ 2026-03-24 03:29:50
● 2026-03-31 05:02:46
● 2026-05-09 15:48:34
●A2606:4700:3037::ac43:d2992026-03-10 → 2026-05-09 · 5 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
○ 2026-03-24 03:29:50
● 2026-03-31 05:02:46
● 2026-05-09 15:48:34
○A2a06:98c1:3120::2026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-05-09 15:48:34
○A2a06:98c1:3121::2026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-05-09 15:48:34
○A75.125.224.1302009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 21:06:32
○ 2015-07-17 16:12:38
○ 2026-05-09 15:48:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brf.dns.br, d.dns.br, b.dns.br, e.dns.br...-
knowledge.com.brdeborah.ns.cloudflare.com, nolan.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.56

NS records: deborah.ns.cloudflare.com, nolan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge.com.br (unsigned zone)

⏱️ Timing

Total: 1200ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.210.153, 104.21.77.171
AAAA22606:4700:3037::ac43:d299, 2606:4700:3036::6815:4dab
NS2deborah.ns.cloudflare.com, nolan.ns.cloudflare.com
MX3mx.zoho.com (pri: 10), mx3.zoho.com (pri: 20)...
TXT2MS=ms70425472, v=spf1 include:zohomail.com -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1deborah.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

knowledge.com.br points to four IP numbers: 2606:4700:3036::6815:4dab, 2606:4700:3037::ac43:d299, 104.21.77.171 and 172.67.210.153.

Other host names including apkun.com, blacklisted.dk, www.atue-adguard.pro, meetinazerbaijan.com and mail.morriscountyhandyman.com share IP numbers with knowledge.com.br.

Name Servers

knowledge.com.br's delegation uses two name servers, deborah.ns.cloudflare.com and nolan.ns.cloudflare.com.

knowledge.com.br shares the same name server setup as other domains, for example sislisutesisat.com, crownplay.com.de, dnasys.com.br, easybet-southafrica.co.za and dormothome.com.

knowledge.com.br at least partially shares name servers with other domains, including lai-ci.com, mekar77baru.quest, hukiminamafeq.workers.dev, aivestor.net and postea.net.

These name servers are commonly used with deb.ns.cloudflare.com and chip.ns.cloudflare.com.

Host names with six IP numbers:

deborah.ns.cloudflare.com points to: 2606:4700:50::a29f:266f, 2803:f800:50::6ca2:c26f, 2a06:98c1:50::ac40:226f, 108.162.194.111, 162.159.38.111 and 172.64.34.111.

nolan.ns.cloudflare.com points to: 2606:4700:58::a29f:2c38, 2803:f800:50::6ca2:c338, 2a06:98c1:50::ac40:2338, 108.162.195.56, 162.159.44.56 and 172.64.35.56.

Mail Servers

knowledge.com.br is handled by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

The mail servers for knowledge.com.br are shared with other domains, for instance buytrance.com, mediawildfire.com, nuatic.com, llibi.com and greatlight.com.

Host names with two IP numbers: mx.zoho.com points to 136.143.191.44 and 204.141.33.44.

Host names with one IP number:

mx2.zoho.com points to 204.141.33.44.

mx3.zoho.com points to 136.143.191.44.

Host names that point to 136.143.191.44: mx.zoho.com and mx3.zoho.com.

Host names that point to 204.141.33.44: mx.zoho.com and mx2.zoho.com.