knowtec.com.br - dns.ninja

`knowtec.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:3d4a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:cf5e^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.61.74^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.207.94^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`eric.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b70^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c170^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`eric.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2170^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`eric.ns.cloudflare.com`
		A	108.162.193.112^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	172.64.33.112^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
		A	173.245.59.112^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eric.ns.cloudflare.com`
NS	`jade.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jade.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jade.ns.cloudflare.com`
		A	108.162.192.167^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
		A	172.64.32.167^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
		A	173.245.58.167^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c09::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f26.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.61.74, 172.67.207.94
		IPv6 hints	2606:4700:3031::6815:3d4a, 2606:4700:3032::ac43:cf5e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=216, name=cloudflare-ech.com
SOA	`eric.ns.cloudflare.com`dns@cloudflare.com serial=2410652708

`com.br`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.br` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.br` ⚠️ Not in parent delegation
	NS	`c.dns.br` ⚠️ Not in parent delegation
	NS	`d.dns.br` ⚠️ Not in parent delegation
	NS	`e.dns.br` ⚠️ Not in parent delegation
	NS	`f.dns.br` ⚠️ Not in parent delegation
	SOA	`a.dns.br`hostmaster@registro.br serial=2026209424

rank #519666 globally
rank #3715 in the tld
WOT: SAFE (69/100)

Subdomains

www.knowtec.com.br

Same first word

knowtec.com.br

knowtec.de

knowtec.com

Similar names

weckton.de

ecktown.net

tecknow.tax

tecknow.ca

tecknow.co.uk

tecknow.de

tecknow.tv

DNS History

21 records (11 active, 10 former)

○NSa.sec.dns.br2020-03-19 → 2021-03-31 · 5 obs

○ 2017-02-20 04:56:04
● 2020-03-19 10:33:44
● 2021-03-31 13:35:12
○ 2026-02-19 14:46:44
○ 2026-07-28 18:26:00

○NSc.sec.dns.br2020-03-19 → 2021-03-31 · 5 obs

○ 2017-02-20 04:56:04
● 2020-03-19 10:33:44
● 2021-03-31 13:35:12
○ 2026-02-19 14:46:44
○ 2026-07-28 18:26:00

●NSeric.ns.cloudflare.com2026-02-19 → 2026-07-28 · 3 obs

○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

●NSjade.ns.cloudflare.com2026-02-19 → 2026-07-28 · 3 obs

○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

○NSns.floripa.com.br2015-08-11 → 2017-02-20 · 4 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2026-07-28 18:26:00

○NSns.iaccess.com.br2015-08-11 → 2016-07-15 · 4 obs

● 2015-08-11 15:46:14
● 2016-07-15 18:14:38
○ 2017-02-20 04:56:04
○ 2026-07-28 18:26:00

○NSns2.floripa.com.br2017-02-20 → 2017-02-20 · 4 obs

○ 2016-07-15 18:14:38
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2026-07-28 18:26:00

○NSns2.iaccess.com.br2015-08-11 → 2016-07-15 · 4 obs

● 2015-08-11 15:46:14
● 2016-07-15 18:14:38
○ 2017-02-20 04:56:04
○ 2026-07-28 18:26:00

●MXalt1.aspmx.l.google.com2015-08-11 → 2026-07-28 · 6 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

●MXalt2.aspmx.l.google.com2015-08-11 → 2026-07-28 · 6 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

●MXalt3.aspmx.l.google.com2026-02-19 → 2026-07-28 · 3 obs

○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

●MXalt4.aspmx.l.google.com2026-02-19 → 2026-07-28 · 3 obs

○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

●MXaspmx.l.google.com2015-08-11 → 2026-07-28 · 6 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2021-03-31 13:35:12
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

○MXaspmx2.googlemail.com2015-08-11 → 2017-02-20 · 4 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2026-07-28 18:26:00

○MXaspmx3.googlemail.com2015-08-11 → 2017-02-20 · 4 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2026-07-28 18:26:00

●A104.21.61.742026-02-19 → 2026-07-28 · 3 obs

○ 2020-03-19 10:33:44
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

●A172.67.207.942026-02-19 → 2026-07-28 · 3 obs

○ 2020-03-19 10:33:44
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

○A186.202.10.1472015-08-11 → 2017-02-20 · 4 obs

● 2015-08-11 15:46:14
● 2017-02-20 04:56:04
○ 2020-03-19 10:33:44
○ 2026-07-28 18:26:00

●A2606:4700:3031::6815:3d4a2026-06-21 → 2026-07-28 · 3 obs

○ 2026-06-16 00:19:46
● 2026-06-21 00:48:58
● 2026-07-28 18:26:00

●A2606:4700:3032::ac43:cf5e2026-02-19 → 2026-07-28 · 3 obs

○ 2020-03-19 10:33:44
● 2026-02-19 14:46:44
● 2026-07-28 18:26:00

○A2606:4700:3037::6815:3d4a2026-02-19 → 2026-06-16 · 5 obs

○ 2020-03-19 10:33:44
● 2026-02-19 14:46:44
● 2026-06-16 00:19:46
○ 2026-06-21 00:48:58
○ 2026-07-28 18:26:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
knowtec.com.br	eric.ns.cloudflare.com, jade.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.167

NS records: eric.ns.cloudflare.com, jade.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1025ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.207.94, 104.21.61.74`
AAAA	2	`2606:4700:3031::6815:3d4a, 2606:4700:3032::ac43:cf5e`
NS	2	`eric.ns.cloudflare.com, jade.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`eric.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

www.knowtec.com.br is a subdomain of knowtec.com.br.

IP Addresses

knowtec.com.br directs to four IP numbers, which are 104.21.61.74, 172.67.207.94, 2606:4700:3031::6815:3d4a and 2606:4700:3032::ac43:cf5e.

streamworld.com, rohacan.eu, bet5950.com plus two other host names have IP numbers in common with knowtec.com.br.

Name Servers

DNS delegation for knowtec.com.br points to two name servers: eric.ns.cloudflare.com and jade.ns.cloudflare.com.

The name server configuration of knowtec.com.br is shared with other domains, for instance casaraosemgluten.com.br, islipida.com, impulseinformatica.com.br and two others.

The name servers of knowtec.com.br overlap at least partially with those of other domains — among them tatimoraes.com, vaplumbing.com.au, joe.app and two more.

These name servers commonly appear alongside the name servers henry.ns.cloudflare.com and terin.ns.cloudflare.com.

Hosts with 6 IP addresses each:

eric.ns.cloudflare.com has IP addresses 108.162.193.112, 172.64.33.112 and 173.245.59.112, plus 3 other.

jade.ns.cloudflare.com has IP addresses 108.162.192.167, 172.64.32.167 and 173.245.58.167, plus 3 other.

Mail Servers

Five mail servers handle knowtec.com.br: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by knowtec.com.br are shared with other domains: cloudpoint.com, alfanisa.com, ns500768.ns500698.ns500735.ns500736.ns500735.ns500735.ns500736.ns500735.ns500708.ns500698.ns500708.ns500686.ns500652.ns500619.ns500576.trackreceptor.com and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com has two IP addresses: 142.251.111.27 and 2607:f8b0:4004:c09::1a.

alt1.aspmx.l.google.com has two IP addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com has two IP addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1a.