otec.net.br - robtex.com

otec.net.br

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:838a🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:a9c🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.10.156Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.131.138🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSsky.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2602🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsky.ns.cloudflare.com
A2803:f800:50::6ca2:c202🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsky.ns.cloudflare.com
A2a06:98c1:50::ac40:2202🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsky.ns.cloudflare.com
A108.162.194.2🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsky.ns.cloudflare.com
A162.159.38.2Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsky.ns.cloudflare.com
A172.64.34.2🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsky.ns.cloudflare.com
NStitan.ns.cloudflare.com
A2606:4700:58::a29f:2c5d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtitan.ns.cloudflare.com
A2803:f800:50::6ca2:c35d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtitan.ns.cloudflare.com
A2a06:98c1:50::ac40:235d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtitan.ns.cloudflare.com
A108.162.195.93🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.44.93Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.35.93🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
TXTgoogle-site-verification=izgKUuf1NyqQCdlG7hLmc4tLoGmfCXUsWo38ECzbwPI
TXTv=spf1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.10.156, 172.67.131.138
IPv6 hints2606:4700:3030::ac43:838a, 2606:4700:3032::6815:a9c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com
SOAsky.ns.cloudflare.comdns@cloudflare.com serial=2408310471

net.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=2026197128
WOT: SAFE (8/100)

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DNS History

8 records (6 active, 2 former)

NSsky.ns.cloudflare.comtitan.ns.cloudflare.comA104.21.10.156172.67.131.1382606:4700:3030::ac43:838a2606:4700:3032::6815:a9c2606:4700:3035::6815:a9c2606:4700:3037::ac43:838a
●NSsky.ns.cloudflare.com2026-05-14 → 2026-07-16 · 2 obs
● 2026-05-14 01:27:24
● 2026-07-16 05:23:58
●NStitan.ns.cloudflare.com2026-05-14 → 2026-07-16 · 2 obs
● 2026-05-14 01:27:24
● 2026-07-16 05:23:58
●A104.21.10.1562026-05-14 → 2026-07-16 · 2 obs
● 2026-05-14 01:27:24
● 2026-07-16 05:23:58
●A172.67.131.1382026-05-14 → 2026-07-16 · 2 obs
● 2026-05-14 01:27:24
● 2026-07-16 05:23:58
●A2606:4700:3030::ac43:838a2026-07-13 → 2026-07-16 · 3 obs
○ 2026-06-12 22:43:06
● 2026-07-13 08:33:12
● 2026-07-16 05:23:58
●A2606:4700:3032::6815:a9c2026-07-13 → 2026-07-16 · 3 obs
○ 2026-06-12 22:43:06
● 2026-07-13 08:33:12
● 2026-07-16 05:23:58
○A2606:4700:3035::6815:a9c2026-05-14 → 2026-06-12 · 4 obs
● 2026-05-14 01:27:24
● 2026-06-12 22:43:06
○ 2026-07-13 08:33:12
○ 2026-07-16 05:23:58
○A2606:4700:3037::ac43:838a2026-05-14 → 2026-06-12 · 4 obs
● 2026-05-14 01:27:24
● 2026-06-12 22:43:06
○ 2026-07-13 08:33:12
○ 2026-07-16 05:23:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bra.dns.br, b.dns.br, c.dns.br, d.dns.br...-
otec.net.brsky.ns.cloudflare.com, titan.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.93

NS records: sky.ns.cloudflare.com, titan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for otec.net.br (unsigned zone)

⏱️ Timing

Total: 838ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.10.156, 172.67.131.138
AAAA22606:4700:3032::6815:a9c, 2606:4700:3030::ac43:838a
NS2sky.ns.cloudflare.com, titan.ns.cloudflare.com
MX1. (pri: 0)
TXT2google-site-verification=izgKUuf1NyqQCdl, v=spf1 -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1sky.ns.cloudflare.com dns.cloudflare.com

Analysis

IP Addresses

otec.net.br has four IP addresses: 104.21.10.156, 172.67.131.138, 2606:4700:3030::ac43:838a and 2606:4700:3032::6815:a9c.

Two other host names, along with ningyiedu.com, www.dd44pp.com and www.terlarang.net.cdn.cloudflare.net, also share IP numbers with otec.net.br.

Name Servers

otec.net.br uses two name servers for its delegation: sky.ns.cloudflare.com and titan.ns.cloudflare.com.

otec.net.br shares its NS records with other domains, for example imotion.com.br, printablesfree.com, 100inf.it and two others.

otec.net.br shares at least some of its name servers with other domains, including emperorsg.com, rapidreelsplatform.com, rjsmdb.com and two others.

These name servers are frequently paired with the name servers treasure.ns.cloudflare.com and kyree.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname sky.ns.cloudflare.com directs to 108.162.194.2, 162.159.38.2 and 172.64.34.2 along with 3 other IP addresses.

Hostname titan.ns.cloudflare.com directs to 108.162.195.93, 162.159.44.93 and 172.64.35.93 along with 3 other IP addresses.