www.code21.com.br - dns.ninja

www.code21.com.br

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:b5c🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:a5b5🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.11.92Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.165.181🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.11.92, 172.67.165.181
IPv6 hints2606:4700:3031::6815:b5c, 2606:4700:3036::ac43:a5b5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com

code21.com.br

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:b5c🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:a5b5🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.11.92Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.165.181🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmonika.ns.cloudflare.com ⭐
NSmoura.ns.cloudflare.com
MXcode21-com-br.mail.protection.outlook.com ⭐
TXTMS=ms70362201
TXTcode21.azurewebsites.net
TXTmandrill_verify.dm6q2tzoxE3JusgLerJQ6w
TXTv=spf1 include:spf.protection.outlook.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.11.92, 172.67.165.181
IPv6 hints2606:4700:3031::6815:b5c, 2606:4700:3036::ac43:a5b5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com
SOAmonika.ns.cloudflare.comdns@cloudflare.com serial=2406741625

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DNS History

13 records (4 active, 9 former)

202120222023202420252026A104.21.11.92172.67.165.1812606:4700:3031::6815:b5c2606:4700:3036::ac43:a5b5188.114.96.0188.114.96.4188.114.97.0188.114.97.42a06:98c1:3120::2a06:98c1:3120::42a06:98c1:3121::2a06:98c1:3121::4CNAMEcode21site.azurewebsites.net
●A104.21.11.922026-06-01 → 2026-06-12 · 6 obs
○ 2026-02-16 10:07:20
● 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
● 2026-06-12 22:44:54
● 2026-06-12 22:44:56
●A172.67.165.1812026-06-01 → 2026-06-12 · 6 obs
○ 2026-02-16 10:07:20
● 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
● 2026-06-12 22:44:54
● 2026-06-12 22:44:56
○A188.114.96.02026-02-16 → 2026-06-04 · 6 obs
● 2026-02-16 10:07:20
○ 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
● 2026-06-04 13:44:22
○ 2026-06-12 22:44:54
○ 2026-06-12 22:44:56
○A188.114.96.42026-06-04 → 2026-06-04 · 4 obs
○ 2026-06-01 02:39:32
● 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
○ 2026-06-12 22:44:56
○A188.114.97.02026-02-16 → 2026-06-04 · 6 obs
● 2026-02-16 10:07:20
○ 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
● 2026-06-04 13:44:22
○ 2026-06-12 22:44:54
○ 2026-06-12 22:44:56
○A188.114.97.42026-06-04 → 2026-06-04 · 4 obs
○ 2026-06-01 02:39:32
● 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
○ 2026-06-12 22:44:56
●A2606:4700:3031::6815:b5c2026-06-01 → 2026-06-12 · 6 obs
○ 2026-02-16 10:07:20
● 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
● 2026-06-12 22:44:54
● 2026-06-12 22:44:56
●A2606:4700:3036::ac43:a5b52026-06-01 → 2026-06-12 · 6 obs
○ 2026-02-16 10:07:20
● 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
● 2026-06-12 22:44:54
● 2026-06-12 22:44:56
○A2a06:98c1:3120::2026-02-16 → 2026-06-04 · 6 obs
● 2026-02-16 10:07:20
○ 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
● 2026-06-04 13:44:22
○ 2026-06-12 22:44:54
○ 2026-06-12 22:44:56
○A2a06:98c1:3120::42026-06-04 → 2026-06-04 · 4 obs
○ 2026-06-01 02:39:32
● 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
○ 2026-06-12 22:44:56
○A2a06:98c1:3121::2026-02-16 → 2026-06-04 · 6 obs
● 2026-02-16 10:07:20
○ 2026-06-01 02:39:32
○ 2026-06-04 12:47:58
● 2026-06-04 13:44:22
○ 2026-06-12 22:44:54
○ 2026-06-12 22:44:56
○A2a06:98c1:3121::42026-06-04 → 2026-06-04 · 4 obs
○ 2026-06-01 02:39:32
● 2026-06-04 12:47:58
○ 2026-06-04 13:44:22
○ 2026-06-12 22:44:56
○CNAMEcode21site.azurewebsites.net2020-01-16 → 2026-02-16 · 4 obs
● 2020-01-16 14:08:22
● 2026-02-16 10:07:20
○ 2026-06-01 02:39:32
○ 2026-06-12 22:44:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bra.dns.br, b.dns.br, c.dns.br, d.dns.br...-
code21.com.brmonika.ns.cloudflare.com, moura.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.217

NS records: monika.ns.cloudflare.com, moura.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for code21.com.br (unsigned zone)

⏱️ Timing

Total: 871ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.165.181, 104.21.11.92
AAAA22606:4700:3031::6815:b5c, 2606:4700:3036::ac43:a5b5
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

www.code21.com.br points to four IP numbers: 104.21.11.92, 172.67.165.181, 2606:4700:3031::6815:b5c and 2606:4700:3036::ac43:a5b5.

skischule-lofer.at, rimpel.eu, archome.jp plus two other host names have IP numbers in common with www.code21.com.br.