cdn4.guidespdf.com - robtex.com

cdn4.guidespdf.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:5449🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:bca3🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.73Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.163🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.84.73, 172.67.188.163
IPv6 hints2606:4700:3034::6815:5449, 2606:4700:3037::ac43:bca3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com

guidespdf.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:5449🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:bca3🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.73Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.163🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdahlia.ns.cloudflare.com ⭐
NSigor.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.84.73, 172.67.188.163
IPv6 hints2606:4700:3034::6815:5449, 2606:4700:3037::ac43:bca3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=139, name=cloudflare-ech.com
SOAdahlia.ns.cloudflare.comdns@cloudflare.com serial=2399380738
📈 Tranco rank: #314,198

Same first word

cdn4.net
cdn4.com
cdn4.cn
cdn4.life
cdn4.ru
cdn4.club
cdn4.me

Similar names

4cdn.hu
cn4d.wang
4ndc.com
4cdn.co
dcn4.net
c4dn.com
dn4c.com
n4cd.akamai.net
dcn4.com
4cdn.lat
4cdn.cc
4dnc.com
n4cd.akamaiedge.net
4cdn.net
nc4d.com
n4dc.com
4cdn.cn
4cdn.link
4cdn.org
4ncd.com
d4cn.com
cnd4.com
ncd4.com
c4dn.co
cn4d.com
nd4c.com
4cdn.com

DNS History

4 records (4 active, 0 former)

A104.21.84.73172.67.188.1632606:4700:3034::6815:54492606:4700:3037::ac43:bca3
●A104.21.84.732026-04-14 → 2026-05-10 · 2 obs
● 2026-04-14 13:20:32
● 2026-05-10 06:30:28
●A172.67.188.1632026-04-14 → 2026-05-10 · 2 obs
● 2026-04-14 13:20:32
● 2026-05-10 06:30:28
●A2606:4700:3034::6815:54492026-04-14 → 2026-05-10 · 2 obs
● 2026-04-14 13:20:32
● 2026-05-10 06:30:28
●A2606:4700:3037::ac43:bca32026-04-14 → 2026-05-10 · 2 obs
● 2026-04-14 13:20:32
● 2026-05-10 06:30:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
guidespdf.comigor.ns.cloudflare.com, dahlia.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.119

NS records: igor.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for guidespdf.com (unsigned zone)

⏱️ Timing

Total: 101ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.188.163, 104.21.84.73
AAAA22606:4700:3034::6815:5449, 2606:4700:3037::ac43:bca3
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by cdn4.guidespdf.com: 2606:4700:3034::6815:5449, 2606:4700:3037::ac43:bca3, 104.21.84.73 and 172.67.188.163.

other host names including bengali(0x736578)storys.in, gelenaglar.net, edubits.nl, abiitos.com and 66097.com share IP numbers with cdn4.guidespdf.com.