webcdn.zbook.us - robtex.com

webcdn.zbook.us

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:264cπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3032::ac43:dc15πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.38.76Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.220.21πŸ‡ΊπŸ‡Έ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.38.76, 172.67.220.21
IPv6 hints2606:4700:3032::6815:264c, 2606:4700:3032::ac43:dc15
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com

zbook.us

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:264cπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3032::ac43:dc15πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.38.76Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.220.21πŸ‡ΊπŸ‡Έ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSpeaches.ns.cloudflare.com ⭐
NSyisroel.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.38.76, 172.67.220.21
IPv6 hints2606:4700:3032::6815:264c, 2606:4700:3032::ac43:dc15
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOApeaches.ns.cloudflare.comdns@cloudflare.com serial=2410572742

Same first word

Similar names

DNS History

11 records (4 active, 7 former)

A104.21.38.76172.67.220.212606:4700:3032::6815:264c2606:4700:3032::ac43:dc15104.21.45.102172.67.213.352606:4700:130:436c:6f75:6466:6c61:72652606:4700:3032::ac43:d5232606:4700:3033::6815:264c2606:4700:3034::6815:2d662606:4700:3035::ac43:dc15
●A104.21.38.762026-05-28 β†’ 2026-08-05 Β· 3 obs
β—‹ 2026-05-23 03:26:42
● 2026-05-28 17:50:56
● 2026-08-05 18:28:44
β—‹A104.21.45.1022026-02-20 β†’ 2026-05-23 Β· 4 obs
● 2026-02-20 02:46:20
● 2026-05-23 03:26:42
β—‹ 2026-05-28 17:50:56
β—‹ 2026-08-05 18:28:44
β—‹A172.67.213.352026-02-20 β†’ 2026-05-23 Β· 4 obs
● 2026-02-20 02:46:20
● 2026-05-23 03:26:42
β—‹ 2026-05-28 17:50:56
β—‹ 2026-08-05 18:28:44
●A172.67.220.212026-05-28 β†’ 2026-08-05 Β· 3 obs
β—‹ 2026-05-23 03:26:42
● 2026-05-28 17:50:56
● 2026-08-05 18:28:44
β—‹A2606:4700:130:436c:6f75:6466:6c61:72652026-02-20 β†’ 2026-02-20 Β· 3 obs
● 2026-02-20 02:46:20
β—‹ 2026-03-19 23:04:46
β—‹ 2026-08-05 18:28:44
●A2606:4700:3032::6815:264c2026-07-01 β†’ 2026-08-05 Β· 3 obs
β—‹ 2026-05-28 17:50:56
● 2026-07-01 17:09:42
● 2026-08-05 18:28:44
β—‹A2606:4700:3032::ac43:d5232026-03-19 β†’ 2026-05-23 Β· 5 obs
β—‹ 2026-02-20 02:46:20
● 2026-03-19 23:04:46
● 2026-05-23 03:26:42
β—‹ 2026-05-28 17:50:56
β—‹ 2026-08-05 18:28:44
●A2606:4700:3032::ac43:dc152026-07-01 β†’ 2026-08-05 Β· 3 obs
β—‹ 2026-05-28 17:50:56
● 2026-07-01 17:09:42
● 2026-08-05 18:28:44
β—‹A2606:4700:3033::6815:264c2026-05-28 β†’ 2026-05-28 Β· 4 obs
β—‹ 2026-05-23 03:26:42
● 2026-05-28 17:50:56
β—‹ 2026-07-01 17:09:42
β—‹ 2026-08-05 18:28:44
β—‹A2606:4700:3034::6815:2d662026-03-19 β†’ 2026-05-23 Β· 5 obs
β—‹ 2026-02-20 02:46:20
● 2026-03-19 23:04:46
● 2026-05-23 03:26:42
β—‹ 2026-05-28 17:50:56
β—‹ 2026-08-05 18:28:44
β—‹A2606:4700:3035::ac43:dc152026-05-28 β†’ 2026-05-28 Β· 4 obs
β—‹ 2026-05-23 03:26:42
● 2026-05-28 17:50:56
β—‹ 2026-07-01 17:09:42
β—‹ 2026-08-05 18:28:44

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
zbook.usyisroel.ns.cloudflare.com, peaches.ns.cloudflare.com-

βœ… Authoritative Response

Server:162.159.44.185

NS records: yisroel.ns.cloudflare.com, peaches.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zbook.us (unsigned zone)

⏱️ Timing

Total: 349ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2104.21.38.76, 172.67.220.21
AAAA22606:4700:3032::ac43:dc15, 2606:4700:3032::6815:264c
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

webcdn.zbook.us has four IP addresses: 104.21.38.76, 172.67.220.21, 2606:4700:3032::6815:264c and 2606:4700:3032::ac43:dc15.

tkcic.com, gruporezion.com.br, snabshod.com and two other host names share IP numbers with webcdn.zbook.us.