cathoelearning.com.br - robtex.com

cathoelearning.com.br

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:85c7🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:1951🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.81Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.199🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSart.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b66🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
A2803:f800:50::6ca2:c166🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRart.ns.cloudflare.com
A2a06:98c1:50::ac40:2166🇺🇸 Cloudflare2a06:98c1:50::/45
PTRart.ns.cloudflare.com
A108.162.193.102🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
A172.64.33.102🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
A173.245.59.102🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
NSautumn.ns.cloudflare.com
A2606:4700:50::a29f:2694🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRautumn.ns.cloudflare.com
A2803:f800:50::6ca2:c294🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRautumn.ns.cloudflare.com
A2a06:98c1:50::ac40:2294🇺🇸 Cloudflare2a06:98c1:50::/45
PTRautumn.ns.cloudflare.com
A108.162.194.148🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRautumn.ns.cloudflare.com
A162.159.38.148Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRautumn.ns.cloudflare.com
A172.64.34.148🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRautumn.ns.cloudflare.com
TXTv=spf1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.25.81, 172.67.133.199
IPv62606:4700:3035::ac43:85c7, 2606:4700:3036::6815:1951
SOAart.ns.cloudflare.comdns@cloudflare.com serial=2397026468

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=2026074138
rank #545363 globally
rank #4043 in the tld
WOT: SAFE (69/100)

Subdomains

www.cathoelearning.com.br

Same first word

cathoelearning.com.br

Similar names

catherinelogan.com
catherinelango.com

DNS History

13 records (6 active, 7 former)

201020122014201620182020202220242026NSart.ns.cloudflare.comautumn.ns.cloudflare.combarueri.catho.net.brboraceia.catho.net.brjoaquina.catho.com.brsaopaulo.catho.com.brtambore.catho.net.brtoquetoque.catho.com.brA104.21.25.81172.67.133.1992606:4700:3035::ac43:85c72606:4700:3036::6815:1951200.212.63.38
●NSart.ns.cloudflare.com2026-03-23 → 2026-03-23 · 2 obs
○ 2017-06-05 10:03:50
● 2026-03-23 16:01:42
●NSautumn.ns.cloudflare.com2026-03-23 → 2026-03-23 · 2 obs
○ 2017-06-05 10:03:50
● 2026-03-23 16:01:42
○NSbarueri.catho.net.br2015-06-25 → 2017-06-05 · 4 obs
○ 2009-01-10 22:23:36
● 2015-06-25 18:53:22
● 2017-06-05 10:03:50
○ 2026-03-23 16:01:42
○NSboraceia.catho.net.br2015-06-25 → 2017-06-05 · 4 obs
○ 2009-01-10 22:23:36
● 2015-06-25 18:53:22
● 2017-06-05 10:03:50
○ 2026-03-23 16:01:42
○NSjoaquina.catho.com.br2009-01-10 → 2017-06-05 · 3 obs
● 2009-01-10 22:23:36
● 2017-06-05 10:03:50
○ 2026-03-23 16:01:42
○NSsaopaulo.catho.com.br2009-01-10 → 2009-01-10 · 3 obs
● 2009-01-10 22:23:36
○ 2015-06-25 18:53:22
○ 2026-03-23 16:01:42
○NStambore.catho.net.br2015-06-25 → 2017-06-05 · 4 obs
○ 2009-01-10 22:23:36
● 2015-06-25 18:53:22
● 2017-06-05 10:03:50
○ 2026-03-23 16:01:42
○NStoquetoque.catho.com.br2009-01-10 → 2017-06-05 · 3 obs
● 2009-01-10 22:23:36
● 2017-06-05 10:03:50
○ 2026-03-23 16:01:42
●A104.21.25.812026-03-23 → 2026-03-23 · 2 obs
○ 2017-06-05 10:03:50
● 2026-03-23 16:01:42
●A172.67.133.1992026-03-23 → 2026-03-23 · 2 obs
○ 2017-06-05 10:03:50
● 2026-03-23 16:01:42
○A200.212.63.382009-01-10 → 2017-06-05 · 3 obs
● 2009-01-10 22:23:36
● 2017-06-05 10:03:50
○ 2026-03-23 16:01:42
●A2606:4700:3035::ac43:85c72026-03-23 → 2026-03-23 · 2 obs
○ 2017-06-05 10:03:50
● 2026-03-23 16:01:42
●A2606:4700:3036::6815:19512026-03-23 → 2026-03-23 · 2 obs
○ 2017-06-05 10:03:50
● 2026-03-23 16:01:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
brf.dns.br, d.dns.br, b.dns.br, e.dns.br...-
cathoelearning.com.brart.ns.cloudflare.com, autumn.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.148

NS records: art.ns.cloudflare.com, autumn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 461ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.133.199, 104.21.25.81
AAAA22606:4700:3035::ac43:85c7, 2606:4700:3036::6815:1951
NS2art.ns.cloudflare.com, autumn.ns.cloudflare.com
TXT1v=spf1 -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1art.ns.cloudflare.com dns.cloudflare.com

Analysis

Hierarchy

The parent of www.cathoelearning.com.br is cathoelearning.com.br.

IP Addresses

cathoelearning.com.br maps to four IP numbers: 2606:4700:3035::ac43:85c7, 2606:4700:3036::6815:1951, 104.21.25.81 and 172.67.133.199.

Other host names such as ferruelo.com, bookaroo.gr, apichumichanga.buzz, jy-yoga.com and bigbookcode.org share IPs with cathoelearning.com.br.

Name Servers

Two name servers art.ns.cloudflare.com and autumn.ns.cloudflare.com handle the delegation for cathoelearning.com.br.

cathoelearning.com.br shares the same name server setup as other domains, for example questionariosonline.com.br, cathoonline.com.br, tacnet.com.br, cathoeducacao.com and cathonegocios.com.

cathoelearning.com.br at least partially shares name servers with other domains, for example quietpc.gr, obsidianhail.com, lumik.net, diosindia.com and dl2.tech.

Host names with six IP numbers:

art.ns.cloudflare.com points to 2606:4700:58::adf5:3b66, 2803:f800:50::6ca2:c166, 2a06:98c1:50::ac40:2166, 108.162.193.102, 172.64.33.102 and 173.245.59.102.

autumn.ns.cloudflare.com points to 2606:4700:50::a29f:2694, 2803:f800:50::6ca2:c294, 2a06:98c1:50::ac40:2294, 108.162.194.148, 162.159.38.148 and 172.64.34.148.