instruct.com.br - dns.ninja

`instruct.com.br`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3031::6815:3f9e^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:ab0a^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.63.158^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.171.10^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brad.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b69^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c169^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brad.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2169^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brad.ns.cloudflare.com`
		A	108.162.193.105^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	172.64.33.105^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	173.245.59.105^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
NS	`brianna.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brianna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brianna.ns.cloudflare.com`
		A	108.162.192.245^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
		A	172.64.32.245^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
		A	173.245.58.245^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brianna.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽³⁹⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁴¹⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
TXT	`google-site-verification=G4nF1y5ej4tUk_vULDlEsD7WOUQQ8udAy0HDfKzDeG0`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.63.158, 172.67.171.10
		IPv6 hints	2606:4700:3031::6815:3f9e, 2606:4700:3034::ac43:ab0a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=14, name=cloudflare-ech.com
SOA	`brad.ns.cloudflare.com`dns@cloudflare.com serial=2410749362

`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=2026211398

rank #521236 globally
rank #3733 in the tld
WOT: SAFE (69/100)

Subdomains

www.instruct.com.br

Same first word

instruct.at

instruct.com.br

instruct.be

instruct.ca

instruct.net

instruct.top

instruct.ch

instruct.ai

instruct.us

instruct.org

instruct.com

instruct.com.au

instruct.info

instruct.it

instruct.me

instruct.nl

instruct.co

instruct.eu

instruct.de

instruct.ru

Similar names

trustnic.com

trustinc.org

structin.com

sturtinc.com

cintrust.com

nistruct.com

trustinc.biz

trustinc.jp

ctiturns.com

DNS History

24 records (9 active, 15 former)

○NSa.sec.dns.br2015-08-05 → 2016-12-30 · 4 obs

● 2015-08-05 22:16:32
● 2016-12-30 08:50:34
○ 2020-01-11 03:34:58
○ 2026-07-30 17:14:58

○NSb.sec.dns.br2015-08-05 → 2016-12-30 · 4 obs

● 2015-08-05 22:16:32
● 2016-12-30 08:50:34
○ 2020-01-11 03:34:58
○ 2026-07-30 17:14:58

●NSbrad.ns.cloudflare.com2020-01-11 → 2026-07-30 · 3 obs

○ 2016-12-30 08:50:34
● 2020-01-11 03:34:58
● 2026-07-30 17:14:58

●NSbrianna.ns.cloudflare.com2020-01-11 → 2026-07-30 · 3 obs

○ 2016-12-30 08:50:34
● 2020-01-11 03:34:58
● 2026-07-30 17:14:58

○MXalt1.aspmx.l.google.com2015-08-05 → 2020-01-11 · 4 obs

● 2015-08-05 22:16:32
● 2020-01-11 03:34:58
○ 2026-02-17 07:37:54
○ 2026-07-30 17:14:58

○MXalt2.aspmx.l.google.com2015-08-05 → 2020-01-11 · 4 obs

● 2015-08-05 22:16:32
● 2020-01-11 03:34:58
○ 2026-02-17 07:37:54
○ 2026-07-30 17:14:58

○MXaspmx.l.google.com2015-08-05 → 2020-01-11 · 4 obs

● 2015-08-05 22:16:32
● 2020-01-11 03:34:58
○ 2026-02-17 07:37:54
○ 2026-07-30 17:14:58

○MXaspmx2.googlemail.com2015-08-05 → 2020-01-11 · 4 obs

● 2015-08-05 22:16:32
● 2020-01-11 03:34:58
○ 2026-02-17 07:37:54
○ 2026-07-30 17:14:58

○MXaspmx3.googlemail.com2015-08-05 → 2020-01-11 · 4 obs

● 2015-08-05 22:16:32
● 2020-01-11 03:34:58
○ 2026-02-17 07:37:54
○ 2026-07-30 17:14:58

●MXroute1.mx.cloudflare.net2026-02-17 → 2026-07-30 · 3 obs

○ 2020-01-11 03:34:58
● 2026-02-17 07:37:54
● 2026-07-30 17:14:58

●MXroute2.mx.cloudflare.net2026-02-17 → 2026-07-30 · 3 obs

○ 2020-01-11 03:34:58
● 2026-02-17 07:37:54
● 2026-07-30 17:14:58

●MXroute3.mx.cloudflare.net2026-02-17 → 2026-07-30 · 3 obs

○ 2020-01-11 03:34:58
● 2026-02-17 07:37:54
● 2026-07-30 17:14:58

●A104.21.63.1582026-02-19 → 2026-07-30 · 11 obs

○ 2026-02-17 07:37:54
● 2026-02-19 10:41:42
○ 2026-02-19 19:09:46
● 2026-04-15 09:44:28
○ 2026-04-24 00:41:58
○ 2026-05-02 11:58:30
● 2026-06-14 03:41:56
○ 2026-06-17 16:07:58
● 2026-07-02 20:19:54
○ 2026-07-04 12:27:10
● 2026-07-30 17:14:58

○A104.236.200.662015-08-05 → 2016-12-30 · 4 obs

● 2015-08-05 22:16:32
● 2016-12-30 08:50:34
○ 2020-01-11 03:34:58
○ 2026-07-30 17:14:58

●A172.67.171.102026-02-19 → 2026-07-30 · 11 obs

○A188.114.96.02026-02-17 → 2026-07-04 · 12 obs

○ 2020-01-11 03:34:58
● 2026-02-17 07:37:54
○ 2026-02-19 10:41:42
● 2026-02-19 19:09:46
○ 2026-04-15 09:44:28
● 2026-04-24 00:41:58
● 2026-05-02 11:58:30
○ 2026-06-14 03:41:56
● 2026-06-17 16:07:58
○ 2026-07-02 20:19:54
● 2026-07-04 12:27:10
○ 2026-07-30 17:14:58

○A188.114.97.02026-02-17 → 2026-07-04 · 12 obs

●A2606:4700:3031::6815:3f9e2026-07-30 → 2026-07-30 · 2 obs

○ 2026-07-04 12:27:10
● 2026-07-30 17:14:58

○A2606:4700:3031::ac43:ab0a2026-02-19 → 2026-07-02 · 11 obs

○A2606:4700:3032::6815:3f9e2026-02-19 → 2026-07-02 · 11 obs

●A2606:4700:3034::ac43:ab0a2026-07-30 → 2026-07-30 · 2 obs

○ 2026-07-04 12:27:10
● 2026-07-30 17:14:58

○A2a06:98c1:3120::2026-02-17 → 2026-07-04 · 12 obs

○A2a06:98c1:3121::2026-02-17 → 2026-07-04 · 12 obs

○A54.39.237.2012020-01-11 → 2020-01-11 · 4 obs

○ 2016-12-30 08:50:34
● 2020-01-11 03:34:58
○ 2026-02-17 07:37:54
○ 2026-07-30 17:14:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
instruct.com.br	brad.ns.cloudflare.com, brianna.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.105

NS records: brad.ns.cloudflare.com, brianna.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 817ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.171.10, 104.21.63.158`
AAAA	2	`2606:4700:3034::ac43:ab0a, 2606:4700:3031::6815:3f9e`
NS	2	`brad.ns.cloudflare.com, brianna.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 33), route3.mx.cloudflare.net (pri: 39)...`
TXT	2	`google-site-verification=G4nF1y5ej4tUk_v, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brad.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

www.instruct.com.br is delegated beneath instruct.com.br.

IP Addresses

instruct.com.br points to the four IP addresses 104.21.63.158, 172.67.171.10, 2606:4700:3031::6815:3f9e and 2606:4700:3034::ac43:ab0a.

Among the host names that share IP numbers with instruct.com.br are adobe-online.kodomful.com, sucessocursos.com, jawa.sh and two others.

Name Servers

The NS records for instruct.com.br delegate to brad.ns.cloudflare.com and brianna.ns.cloudflare.com.

instruct.com.br has the same name server delegation as a number of other domains, such as mikirkeras.com, argus-s.info, elnacimientorestaurant.com and two more.

There is at least partial name server overlap between instruct.com.br and other domains — claudecw.com, thailandweddings.com.au, bellagran.com.br and two more among them.

These name servers frequently co-occur with the name servers emma.ns.cloudflare.com and lucy.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

brad.ns.cloudflare.com maps to 108.162.193.105, 172.64.33.105, 173.245.59.105 and 3 additional IP addresses.

brianna.ns.cloudflare.com maps to 108.162.192.245, 172.64.32.245, 173.245.58.245 and 3 additional IP addresses.

Mail Servers

Incoming mail for instruct.com.br is delivered via three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

instruct.com.br shares at least some of its mail servers with other domains — for example nghenhinaz.com, whoownsnj.com, 247bikers.com and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net maps to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 additional IP addresses.

route2.mx.cloudflare.net maps to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 additional IP addresses.

route3.mx.cloudflare.net maps to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 additional IP addresses.