`istc.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:51c4^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:923d^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.196^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.61^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`molly.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3acd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`molly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`molly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`molly.ns.cloudflare.com`
		A	108.162.192.205^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`molly.ns.cloudflare.com`
		A	172.64.32.205^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`molly.ns.cloudflare.com`
		A	173.245.58.205^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`molly.ns.cloudflare.com`
NS	`todd.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b92^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`todd.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c192^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`todd.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2192^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`todd.ns.cloudflare.com`
		A	108.162.193.146^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`todd.ns.cloudflare.com`
		A	172.64.33.146^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`todd.ns.cloudflare.com`
		A	173.245.59.146^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`todd.ns.cloudflare.com`
TXT	`google-site-verification=GTYOEvpkJG3xik2xfmemiwBNCNlUB3fGBvcGEVafdFI`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.196, 172.67.146.61
		IPv6 hints	2606:4700:3030::6815:51c4, 2606:4700:3031::ac43:923d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=14, name=cloudflare-ech.com
SOA	`molly.ns.cloudflare.com`dns@cloudflare.com serial=2404988286

`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=2026159064

rank #527781 globally
rank #3951 in the tld
WOT: SAFE (69/100)

Previously MX for

istc.com.br

Same first word

istc.co.in

istc.de

istc.kz

istc.co.jp

istc.kiev.ua

istc.edu

istc.ch

istc.am

istc.com

istc.pl

istc.org

istc.su

istc.pt

istc.net

istc.in

istc.be

istc.int

istc.eu

istc.com.au

istc.com.br

istc.fr

istc.org.uk

istc.ac.in

istc.co.ke

istc.uz

istc.gr

istc.ru

Similar names

csit.ws

csit.us

tisc.edu.au

itsc.info

tcis.com.ar

cits.us

ctis.org

itsc.nl

itcs.com.mx

stic.jp

isct.net

tcis.ac.in

itcs.sa

ctsi.com.sg

ctis.es

scit.cn

sict.com

cits.ie

ctis.de

csti.ru

sict.nl

tsci.or.jp

stic.co.th

tsci.net

tsic.de

itsc.org.hk

tisc.com

cits.net

icst.tv

stci.net

tsci.com.br

tsic.co.th

cits.info

sitc.cl

cits.cn

tsci.ru

csit.tv

itcs.at

itsc.com.vn

isct.ac.jp

itcs.ge

scit.cz

scti.tips

cits.lv

csit.co.kr

csit.com.tr

icts.hu

csti.de

itcs.com.pk

tsic.com.br

scti.de

cist.fr

tisc.eu

scit.ro

tcsi.ch

ctsi.co

ctis.me

scit.edu

icst.io

scti.eu

tsci.ch

icst.com.au

cist.cz

itcs.us

scti.com.ar

icts.cc

sitc.us

sitc.co.za

scit.ca

tisc.com.br

scit.network

scit.ai

cist.net.cn

itsc.dk

scti.com.br

sitc.ca

cist.info

stic.com.tw

itcs.se

csit.edu.cn

stic.de

stic.com

scti.co.nz

scti.ca

itcs.in

csit.dk

icts.bg

cits.fr

itsc.kr

itsc.org.sg

stic.co.kr

csit.cz

tisc.org

cits.co.uk

csit.net

ctsi.nsn.us

cist.it

ctsi.fr

cist.de

icts.io

cist.cr

scit.org

stic.se

isct.is

scit.ec

sitc.org

sict.com.cn

icst.com.cn

tcsi.jp

ctsi.kr

stic.com.br

stic.biz

scti.vn

scti.gr

tisc.ma

ctsi.com.au

icts.cz

itcs.pl

csit.com.br

stic.co.in

itsc.com.br

tics.jp

ctsi.com

stic.net

csit.cl

ctis.cn

cist.in

stic.cat

sitc.eu

tisc.org.au

icst.cz

stic.work

stic.network

ctis.co.kr

isct.org

tcis.in

itcs.co.id

itcs.com.py

tics.co

tisc.net

DNS History

27 records (6 active, 21 former)

○NSdns1.agenciaonesky.com.br2017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

○NSdns2.agenciaonesky.com.br2017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

○NSdns3.agenciaonesky.com.br2017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

○NSdns4.agenciaonesky.com.br2017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

●NSmolly.ns.cloudflare.com2026-05-24 → 2026-06-08 · 3 obs

○ 2026-04-07 04:13:08
● 2026-05-24 18:05:22
● 2026-06-08 02:52:14

○NSns1.servidorwebfacil.com2016-05-01 → 2016-06-24 · 4 obs

● 2016-05-01 05:12:14
● 2016-06-24 05:54:26
○ 2017-03-22 14:54:14
○ 2026-06-08 02:52:14

○NSns148.umbler.in2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○NSns2.servidorwebfacil.com2016-05-01 → 2016-06-24 · 4 obs

● 2016-05-01 05:12:14
● 2016-06-24 05:54:26
○ 2017-03-22 14:54:14
○ 2026-06-08 02:52:14

○NSns283.umbler.com.br2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○NSns534.umbler.com2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○NSns840.umbler.co.uk2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

●NStodd.ns.cloudflare.com2026-05-24 → 2026-06-08 · 3 obs

○ 2026-04-07 04:13:08
● 2026-05-24 18:05:22
● 2026-06-08 02:52:14

○MXalt1.aspmx.l.google.com2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○MXalt2.aspmx.l.google.com2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○MXalt3.aspmx.l.google.com2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○MXalt4.aspmx.l.google.com2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○MXaspmx.l.google.com2020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○MXistc.com.br2016-05-01 → 2016-06-24 · 4 obs

● 2016-05-01 05:12:14
● 2016-06-24 05:54:26
○ 2017-03-22 14:54:14
○ 2026-06-08 02:52:14

○MXmx-vip-01-farm74.uni5.net2017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

○MXmx-vip-02-farm74.uni5.net2017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

●A104.21.81.1962026-05-24 → 2026-06-08 · 3 obs

○ 2026-04-07 04:13:08
● 2026-05-24 18:05:22
● 2026-06-08 02:52:14

●A172.67.146.612026-05-24 → 2026-06-08 · 3 obs

○ 2026-04-07 04:13:08
● 2026-05-24 18:05:22
● 2026-06-08 02:52:14

○A177.12.163.1002017-03-22 → 2017-03-22 · 4 obs

○ 2016-06-24 05:54:26
● 2017-03-22 14:54:14
○ 2020-11-16 04:29:48
○ 2026-06-08 02:52:14

○A177.55.120.32020-11-16 → 2020-11-16 · 4 obs

○ 2017-03-22 14:54:14
● 2020-11-16 04:29:48
○ 2026-04-07 04:13:08
○ 2026-06-08 02:52:14

○A200.98.246.1962016-05-01 → 2016-06-24 · 4 obs

● 2016-05-01 05:12:14
● 2016-06-24 05:54:26
○ 2017-03-22 14:54:14
○ 2026-06-08 02:52:14

●A2606:4700:3030::6815:51c42026-05-24 → 2026-06-08 · 3 obs

○ 2026-04-07 04:13:08
● 2026-05-24 18:05:22
● 2026-06-08 02:52:14

●A2606:4700:3031::ac43:923d2026-05-24 → 2026-06-08 · 3 obs

○ 2026-04-07 04:13:08
● 2026-05-24 18:05:22
● 2026-06-08 02:52:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
istc.com.br	molly.ns.cloudflare.com, todd.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.205

NS records: molly.ns.cloudflare.com, todd.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 888ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.146.61, 104.21.81.196`
AAAA	2	`2606:4700:3031::ac43:923d, 2606:4700:3030::6815:51c4`
NS	2	`molly.ns.cloudflare.com, todd.ns.cloudflare.com`
TXT	1	`google-site-verification=GTYOEvpkJG3xik2`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`molly.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

istc.com.br resolves to 4 IP numbers: 104.21.81.196, 172.67.146.61, 2606:4700:3030::6815:51c4 and 2606:4700:3031::ac43:923d.

Additional host names — cintalansia.com, midtenncarriageclub.org, flycatzly.com and two others — share IP numbers with istc.com.br.

Name Servers

Two name servers handle the delegation for istc.com.br: molly.ns.cloudflare.com and todd.ns.cloudflare.com.

istc.com.br shares its name server setup with other domains, including keitharm.me, step-by-step-program.com, ordenato.com.br and two others.

There is at least partial name server overlap between istc.com.br and other domains — samskipvandierenmultimodal.com, aquatherm.mn, manmantongji.com and two more among them.

These name servers frequently co-occur with the name servers kim.ns.cloudflare.com and roman.ns.cloudflare.com.

Host names with 6 IP numbers:

molly.ns.cloudflare.com maps to six IP addresses: 108.162.192.205, 172.64.32.205, 173.245.58.205 and three others.

todd.ns.cloudflare.com maps to six IP addresses: 108.162.193.146, 172.64.33.146, 173.245.59.146 and three others.

istc.com.br - robtex.com

istc.com.br

com.br

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`istc.com.br`

`com.br`