cr.cekcdn.com - robtex.com

cr.cekcdn.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8194🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:2c0🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.2.192Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.129.148🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.2.192, 172.67.129.148
IPv6 hints2606:4700:3033::ac43:8194, 2606:4700:3036::6815:2c0
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=230, name=cloudflare-ech.com

cekcdn.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:8194🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:2c0🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.2.192Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.129.148🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbrad.ns.cloudflare.com ⭐
NSulla.ns.cloudflare.com
MX_dc-mx.3d8b19528114.cekcdn.com ⭐
TXTv=spf1 a mx ip4:172.104.41.108 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.2.192, 172.67.129.148
IPv6 hints2606:4700:3033::ac43:8194, 2606:4700:3036::6815:2c0
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=230, name=cloudflare-ech.com
SOAbrad.ns.cloudflare.comdns@cloudflare.com serial=2400423459

Same first word

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rc.ro
rc.com.mx
rc.network
rc.kz
rc.net.au
rc.com.sg
rc.events
rc.gg
rc.vc
rc.tc
rc.repair

DNS History

8 records (4 active, 4 former)

A104.21.2.192172.67.129.1482606:4700:3033::ac43:81942606:4700:3036::6815:2c0188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●A104.21.2.1922026-03-25 → 2026-04-12 · 3 obs
○ 2026-02-15 19:34:48
● 2026-03-25 02:45:36
● 2026-04-12 15:46:26
●A172.67.129.1482026-03-25 → 2026-04-12 · 3 obs
○ 2026-02-15 19:34:48
● 2026-03-25 02:45:36
● 2026-04-12 15:46:26
○A188.114.96.02026-02-15 → 2026-02-15 · 3 obs
● 2026-02-15 19:34:48
○ 2026-03-25 02:45:36
○ 2026-04-12 15:46:26
○A188.114.97.02026-02-15 → 2026-02-15 · 3 obs
● 2026-02-15 19:34:48
○ 2026-03-25 02:45:36
○ 2026-04-12 15:46:26
●A2606:4700:3033::ac43:81942026-03-25 → 2026-04-12 · 3 obs
○ 2026-02-15 19:34:48
● 2026-03-25 02:45:36
● 2026-04-12 15:46:26
●A2606:4700:3036::6815:2c02026-03-25 → 2026-04-12 · 3 obs
○ 2026-02-15 19:34:48
● 2026-03-25 02:45:36
● 2026-04-12 15:46:26
○A2a06:98c1:3120::2026-02-15 → 2026-02-15 · 3 obs
● 2026-02-15 19:34:48
○ 2026-03-25 02:45:36
○ 2026-04-12 15:46:26
○A2a06:98c1:3121::2026-02-15 → 2026-02-15 · 3 obs
● 2026-02-15 19:34:48
○ 2026-03-25 02:45:36
○ 2026-04-12 15:46:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net...-
cekcdn.combrad.ns.cloudflare.com, ulla.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.233

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cekcdn.com (unsigned zone)

⏱️ Timing

Total: 123ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.129.148, 104.21.2.192
AAAA22606:4700:3036::6815:2c0, 2606:4700:3033::ac43:8194
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (brad.ns.cloudflare.com, brad.ns.cloudflare.com, brad.ns.cloudflare.com...)

Analysis

IP Addresses

cr.cekcdn.com points to four IP numbers: 2606:4700:3033::ac43:8194, 2606:4700:3036::6815:2c0, 104.21.2.192 and 172.67.129.148.

For instance, other host names 40298650ryybltrmzozomdae.qqq336.com, luckhubtoday.co.uk, cn.170manx.com, orbitlabworks.sbs and garudaholiday.fr share IP numbers with cr.cekcdn.com.