knowledge.com.br - dns.ninja

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
A2606:4700:3036::ac43:d299🇺🇸 Cloudflare2606:4700:3036::/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)
A204.141.43.44🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation
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)
A204.141.43.44🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation
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
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, 2606:4700:3036::ac43:d299
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=191, name=cloudflare-ech.com
SOAdeborah.ns.cloudflare.comdns@cloudflare.com serial=2407564105

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=2026186144
rank #547593 globally
rank #4060 in the tld
WOT: SAFE (69/100)

Same first word

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Similar names

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

DNS History

29 records (9 active, 20 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::6815:4dab2606:4700:3036::ac43:d299187.17.111.102188.114.96.0188.114.97.02606:4700:3037::ac43:d2992a06:98c1:3120::2a06:98c1:3121::75.125.224.130
●NSdeborah.ns.cloudflare.com2026-03-10 → 2026-07-05 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-07-05 06:03:52
●NSnolan.ns.cloudflare.com2026-03-10 → 2026-07-05 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○NSns1.zoneedit.com2009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 21:06:32
○ 2015-07-17 16:12:38
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○NSns4.zoneedit.com2009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 21:06:32
○ 2015-07-17 16:12:38
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
●MXmx.zoho.com2026-03-10 → 2026-07-05 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-07-05 06:03:52
●MXmx2.zoho.com2026-03-10 → 2026-07-05 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-07-05 06:03:52
●MXmx3.zoho.com2026-03-10 → 2026-07-05 · 3 obs
○ 2019-01-27 21:54:14
● 2026-03-10 14:21:34
● 2026-07-05 06:03:52
●A104.21.77.1712026-03-10 → 2026-07-05 · 8 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
● 2026-06-17 07:45:46
○ 2026-07-02 07:06:50
● 2026-07-04 16:53:34
● 2026-07-05 06:03:52
●A172.67.210.1532026-03-10 → 2026-07-05 · 8 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
● 2026-06-17 07:45:46
○ 2026-07-02 07:06:50
● 2026-07-04 16:53:34
● 2026-07-05 06:03:52
○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
○ 2026-07-05 06:03:52
○A188.114.96.02026-03-24 → 2026-07-02 · 7 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-06-17 07:45:46
● 2026-07-02 07:06:50
○ 2026-07-04 16:53:34
○ 2026-07-05 06:03:52
○A188.114.97.02026-03-24 → 2026-07-02 · 7 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-06-17 07:45:46
● 2026-07-02 07:06:50
○ 2026-07-04 16:53:34
○ 2026-07-05 06:03:52
●A2606:4700:3036::6815:4dab2026-03-10 → 2026-07-05 · 8 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
● 2026-06-17 07:45:46
○ 2026-07-02 07:06:50
● 2026-07-04 16:53:34
● 2026-07-05 06:03:52
●A2606:4700:3036::ac43:d2992026-07-04 → 2026-07-05 · 3 obs
○ 2026-07-02 07:06:50
● 2026-07-04 16:53:34
● 2026-07-05 06:03:52
○A2606:4700:3037::ac43:d2992026-03-10 → 2026-06-17 · 7 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
● 2026-06-17 07:45:46
○ 2026-07-02 07:06:50
○ 2026-07-05 06:03:52
○A2a06:98c1:3120::2026-03-24 → 2026-07-02 · 7 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-06-17 07:45:46
● 2026-07-02 07:06:50
○ 2026-07-04 16:53:34
○ 2026-07-05 06:03:52
○A2a06:98c1:3121::2026-03-24 → 2026-07-02 · 7 obs
○ 2026-03-10 14:21:34
● 2026-03-24 03:29:50
○ 2026-03-31 05:02:46
○ 2026-06-17 07:45:46
● 2026-07-02 07:06:50
○ 2026-07-04 16:53:34
○ 2026-07-05 06:03:52
○A75.125.224.1302009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 21:06:32
○ 2015-07-17 16:12:38
○ 2026-07-05 06:03:52

🔍 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:162.159.44.56

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: 1294ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.77.171, 172.67.210.153
AAAA22606:4700:3036::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 resolves to four IP addresses: 104.21.77.171, 172.67.210.153, 2606:4700:3036::6815:4dab and 2606:4700:3036::ac43:d299.

blacklisted.dk, www.atue-adguard.pro, jsdhedu.com and two other host names share IP numbers with knowledge.com.br.

Name Servers

DNS delegation for knowledge.com.br points to two name servers: deborah.ns.cloudflare.com and nolan.ns.cloudflare.com.

knowledge.com.br uses the same name servers as several other domains — among them sislisutesisat.com, crownplay.com.de, festactown.com.ng and two more.

knowledge.com.br shares at least some of its name servers with other domains, including lai-ci.com, mekar77baru.quest, hukiminamafeq.workers.dev and two others.

These name servers are frequently seen alongside the name servers deb.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

deborah.ns.cloudflare.com has IP addresses 108.162.194.111, 162.159.38.111 and 172.64.34.111, plus 3 other.

nolan.ns.cloudflare.com has IP addresses 108.162.195.56, 162.159.44.56 and 172.64.35.56, plus 3 other.

Mail Servers

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

knowledge.com.br has at least partial mail server overlap with other domains such as buytrance.com, mediawildfire.com, llibi.com and two more.

Three hosts, each with one IP address: mx2.zoho.com → 204.141.33.44; mx3.zoho.com → 204.141.43.44; mx.zoho.com → 204.141.43.44.

Host names pointing to 204.141.43.44 IP addresses: mx3.zoho.com and mx.zoho.com.