www.block21.cn - robtex.com

www.block21.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:695πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3035::ac43:86e7πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.6.149Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.134.231πŸ‡ΊπŸ‡Έ Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.6.149, 172.67.134.231
IPv6 hints2606:4700:3030::6815:695, 2606:4700:3035::ac43:86e7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=15, name=cloudflare-ech.com

block21.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:695πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3035::ac43:86e7πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.6.149Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.134.231πŸ‡ΊπŸ‡Έ Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSajay.ns.cloudflare.com ⭐
NSolivia.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.6.149, 172.67.134.231
IPv6 hints2606:4700:3030::6815:695, 2606:4700:3035::ac43:86e7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=15, name=cloudflare-ech.com
SOAajay.ns.cloudflare.comdns@cloudflare.com serial=2399055894

Same first word

Similar names

DNS History

5 records (4 active, 1 former)

A104.21.6.149172.67.134.2312606:4700:3030::6815:6952606:4700:3035::ac43:86e7107.148.187.140
●A104.21.6.1492026-03-28 β†’ 2026-04-02 Β· 2 obs
● 2026-03-28 06:29:32
● 2026-04-02 13:34:22
β—‹A107.148.187.1402026-03-28 β†’ 2026-04-02 Β· 2 obs
β—‹ 2026-03-28 06:29:32
β—‹ 2026-04-02 13:34:22
●A172.67.134.2312026-03-28 β†’ 2026-04-02 Β· 2 obs
● 2026-03-28 06:29:32
● 2026-04-02 13:34:22
●A2606:4700:3030::6815:6952026-03-28 β†’ 2026-04-02 Β· 2 obs
● 2026-03-28 06:29:32
● 2026-04-02 13:34:22
●A2606:4700:3035::ac43:86e72026-03-28 β†’ 2026-04-02 Β· 2 obs
● 2026-03-28 06:29:32
● 2026-04-02 13:34:22

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
cna.dns.cn, c.dns.cn, e.dns.cn, d.dns.cn...-
block21.cnajay.ns.cloudflare.com, olivia.ns.cloudflare.com-

βœ… Authoritative Response

Server:162.159.38.221

NS records: ajay.ns.cloudflare.com, olivia.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for block21.cn (unsigned zone)

⏱️ Timing

Total: 1055ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.134.231, 104.21.6.149
AAAA22606:4700:3030::6815:695, 2606:4700:3035::ac43:86e7
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

www.block21.cn points to four IP numbers: 2606:4700:3030::6815:695, 2606:4700:3035::ac43:86e7, 104.21.6.149 and 172.67.134.231.

Other host names including comicstormx.com, rumahbokepvideo.com, bg678wqf.cc, worldshemales.com and cpcontacts.ocsearchconsulting.com share IP numbers with www.block21.cn.