pbkb.cn - robtex.com

pbkb.cn

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:37e7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:ae27🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.55.231Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.39🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlaura.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3ab7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaura.ns.cloudflare.com
A2803:f800:50::6ca2:c0b7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlaura.ns.cloudflare.com
A2a06:98c1:50::ac40:20b7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlaura.ns.cloudflare.com
A108.162.192.183🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaura.ns.cloudflare.com
A172.64.32.183🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaura.ns.cloudflare.com
A173.245.58.183🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlaura.ns.cloudflare.com
NSmike.ns.cloudflare.com
A2606:4700:58::a29f:2c3f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
A2803:f800:50::6ca2:c33f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmike.ns.cloudflare.com
A2a06:98c1:50::ac40:233f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmike.ns.cloudflare.com
A108.162.195.63🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
A162.159.44.63Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
A172.64.35.63🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.55.231, 172.67.174.39
IPv6 hints2606:4700:3036::6815:37e7, 2606:4700:3037::ac43:ae27
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=16, name=cloudflare-ech.com
SOAlaura.ns.cloudflare.comdns@cloudflare.com serial=2398005424

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034660083

Previously NS for

pbkb.cn

Same first word

pbkb.cn
pbkb.pl

Similar names

bkbp.com
bpkb.net
pbbk.cn
bpkb.com
bpbk.de
bbkp.org
pkbb.de
bpbk.com.cn
bbpk.ru
bpbk.pl
bpbk.cn
bpbk.us
bpkb.my.id
bpbk.lublin.pl
bbkp.com
pkbb.com
pkbb.cn
kpbb.org
bpkb.de
bpkb.cn
bpbk.com
bbkp.com.cn
pbbk.net
bbkp.at
bpbk.com.pl
bbpk.de
bbkp.net
kpbb.net
bkpb.org
pkbb.org
kbpb.net
kbpb.org
pbbk.ru

DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSlaura.ns.cloudflare.commike.ns.cloudflare.compbkb.cnA104.21.55.231172.67.174.392606:4700:3036::6815:37e72606:4700:3037::ac43:ae27103.73.97.210174.139.183.187202.74.3.60
●NSlaura.ns.cloudflare.com2026-03-26 → 2026-04-11 · 3 obs
○ 2015-08-09 07:37:08
● 2026-03-26 15:36:58
● 2026-04-11 20:49:00
●NSmike.ns.cloudflare.com2026-03-26 → 2026-04-11 · 3 obs
○ 2015-08-09 07:37:08
● 2026-03-26 15:36:58
● 2026-04-11 20:49:00
○NSpbkb.cn2015-08-09 → 2015-08-09 · 3 obs
● 2015-08-09 07:37:08
○ 2026-03-26 15:36:58
○ 2026-04-11 20:49:00
○A103.73.97.2102017-06-28 → 2017-08-19 · 5 obs
○ 2015-08-09 07:37:08
● 2017-06-28 11:48:12
● 2017-08-19 00:13:20
○ 2026-03-26 15:36:58
○ 2026-04-11 20:49:00
●A104.21.55.2312026-03-26 → 2026-04-11 · 3 obs
○ 2017-08-19 00:13:20
● 2026-03-26 15:36:58
● 2026-04-11 20:49:00
●A172.67.174.392026-03-26 → 2026-04-11 · 3 obs
○ 2017-08-19 00:13:20
● 2026-03-26 15:36:58
● 2026-04-11 20:49:00
○A174.139.183.1872015-08-09 → 2015-08-09 · 3 obs
● 2015-08-09 07:37:08
○ 2017-06-28 11:48:12
○ 2026-04-11 20:49:00
○A202.74.3.602017-06-28 → 2017-08-07 · 5 obs
○ 2015-08-09 07:37:08
● 2017-06-28 11:48:12
● 2017-08-07 00:40:56
○ 2017-08-19 00:13:20
○ 2026-04-11 20:49:00
●A2606:4700:3036::6815:37e72026-03-26 → 2026-04-11 · 3 obs
○ 2017-08-19 00:13:20
● 2026-03-26 15:36:58
● 2026-04-11 20:49:00
●A2606:4700:3037::ac43:ae272026-03-26 → 2026-04-11 · 3 obs
○ 2017-08-19 00:13:20
● 2026-03-26 15:36:58
● 2026-04-11 20:49:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
pbkb.cnmike.ns.cloudflare.com, laura.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.44.63

NS records: mike.ns.cloudflare.com, laura.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pbkb.cn (unsigned zone)

⏱️ Timing

Total: 850ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.55.231, 172.67.174.39
AAAA22606:4700:3037::ac43:ae27, 2606:4700:3036::6815:37e7
NS2laura.ns.cloudflare.com, mike.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1laura.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

pbkb.cn resolves to four IPs: 2606:4700:3036::6815:37e7, 2606:4700:3037::ac43:ae27, 104.21.55.231 and 172.67.174.39.

Other host names, for instance app.hasewerk.de, 0411.alijiasu.com, siv.gob.do, melaniemonroe.net and hosting.hasewerk.de share IP numbers with pbkb.cn.

Name Servers

pbkb.cn has two name servers: laura.ns.cloudflare.com and mike.ns.cloudflare.com.

pbkb.cn shares the same name server setup as other domains, for example 52hny.cn, xg2288.cn, tanggaozu.cn, zhonghaiyou.cn and dwew.cn.

pbkb.cn shares some name servers with other domains, for example grandz-fr.fr, design-medical.com, puntobrico.com, loyalwines.com and kmpnysprmsyncklss.live.

These name servers are commonly used with augustus.ns.cloudflare.com, treasure.ns.cloudflare.com, carter.ns.cloudflare.com, rodney.ns.cloudflare.com and macy.ns.cloudflare.com.

Host names with six IP numbers: laura.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab7, 2803:f800:50::6ca2:c0b7, 2a06:98c1:50::ac40:20b7, 108.162.192.183, 172.64.32.183 and 173.245.58.183; mike.ns.cloudflare.com points to: 2606:4700:58::a29f:2c3f, 2803:f800:50::6ca2:c33f, 2a06:98c1:50::ac40:233f, 108.162.195.63, 162.159.44.63 and 172.64.35.63.