ptrb.cn - robtex.com

ptrb.cn

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:5aab🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9e38🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.90.171Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.56🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSaron.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a45🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaron.ns.cloudflare.com
A2803:f800:50::6ca2:c045🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRaron.ns.cloudflare.com
A2a06:98c1:50::ac40:2045🇺🇸 Cloudflare2a06:98c1:50::/45
PTRaron.ns.cloudflare.com
A108.162.192.69🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaron.ns.cloudflare.com
A172.64.32.69🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaron.ns.cloudflare.com
A173.245.58.69🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaron.ns.cloudflare.com
NSlex.ns.cloudflare.com
A2606:4700:58::adf5:3bc4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlex.ns.cloudflare.com
A2803:f800:50::6ca2:c1c4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlex.ns.cloudflare.com
A2a06:98c1:50::ac40:21c4🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlex.ns.cloudflare.com
A108.162.193.196🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlex.ns.cloudflare.com
A172.64.33.196🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlex.ns.cloudflare.com
A173.245.59.196🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlex.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.90.171, 172.67.158.56
IPv6 hints2606:4700:3033::6815:5aab, 2606:4700:3037::ac43:9e38
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOAaron.ns.cloudflare.comdns@cloudflare.com serial=2401241870

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=2034670646

Previously NS for

ptrb.cn

Same first word

ptrb.cn
ptrb.com
ptrb.de

Similar names

rbtp.org
brpt.com
tbrp.cn
pbtr.us
prbt.com
rptb.ru
ptbr.com
pbtr.ws
bprt.com
rbpt.tech
trpb.ru
pbrt.ru
bptr.net
brpt.org
btpr.net
ptbr.de
pbtr.de
rpbt.com
rbtp.eu
trbp.com
bprt.com.pl
prbt.com.cn
rbtp.cn
bprt.at
brtp.fr
tbrp.com
trpb.com
bptr.com
brtp.net
bprt.cn
bprt.ru
rptb.cn
brpt.xyz
prtb.com.cn
pbtr.com
tprb.ru
tbpr.cn
trbp.ru
prbt.ru
rtbp.de
tprb.com
brtp.lu
rtbp.cn
btpr.ru
tpbr.com
brpt.net
bptr.de
pbtr.co.id
rpbt.ru
prtb.ru
ptbr.org
tprb.cn
rtpb.ru
rtbp.myshopify.com
tbrp.eu
prbt.net
btrp.com
pbrt.com.cn
rbpt.com
rtbp.org
rbtp.com
prtb.ie
brtp.com
prtb.de
tbpr.org
btrp.net
rtbp.net
btrp.ru
pbrt.org
btpr.online
rpbt.co.uk
tbpr.com.au
trbp.co.uk
pbtr.info
tbpr.de
pbrt.com

DNS History

8 records (6 active, 2 former)

20162017201820192020202120222023202420252026NSaron.ns.cloudflare.comlex.ns.cloudflare.comptrb.cnA104.21.90.171172.67.158.562606:4700:3033::6815:5aab2606:4700:3037::ac43:9e38174.139.183.187
●NSaron.ns.cloudflare.com2026-04-06 → 2026-04-14 · 3 obs
○ 2015-07-15 16:42:40
● 2026-04-06 08:40:32
● 2026-04-14 21:40:14
●NSlex.ns.cloudflare.com2026-04-06 → 2026-04-14 · 3 obs
○ 2015-07-15 16:42:40
● 2026-04-06 08:40:32
● 2026-04-14 21:40:14
○NSptrb.cn2015-07-15 → 2015-07-15 · 3 obs
● 2015-07-15 16:42:40
○ 2026-04-06 08:40:32
○ 2026-04-14 21:40:14
●A104.21.90.1712026-04-06 → 2026-04-14 · 3 obs
○ 2015-07-15 16:42:40
● 2026-04-06 08:40:32
● 2026-04-14 21:40:14
●A172.67.158.562026-04-06 → 2026-04-14 · 3 obs
○ 2015-07-15 16:42:40
● 2026-04-06 08:40:32
● 2026-04-14 21:40:14
○A174.139.183.1872015-07-15 → 2015-07-15 · 3 obs
● 2015-07-15 16:42:40
○ 2026-04-06 08:40:32
○ 2026-04-14 21:40:14
●A2606:4700:3033::6815:5aab2026-04-06 → 2026-04-14 · 3 obs
○ 2015-07-15 16:42:40
● 2026-04-06 08:40:32
● 2026-04-14 21:40:14
●A2606:4700:3037::ac43:9e382026-04-06 → 2026-04-14 · 3 obs
○ 2015-07-15 16:42:40
● 2026-04-06 08:40:32
● 2026-04-14 21:40:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
ptrb.cnlex.ns.cloudflare.com, aron.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.69

NS records: lex.ns.cloudflare.com, aron.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ptrb.cn (unsigned zone)

⏱️ Timing

Total: 960ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.90.171, 172.67.158.56
AAAA22606:4700:3033::6815:5aab, 2606:4700:3037::ac43:9e38
NS2aron.ns.cloudflare.com, lex.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1aron.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

ptrb.cn maps to four IP numbers: 2606:4700:3033::6815:5aab, 2606:4700:3037::ac43:9e38, 104.21.90.171 and 172.67.158.56.

Other host names such as www.fabiomassimocastaldo.it, www.antologiasf.com, kripto.xn--bctrk-gva76e.com, 293y.com and checkpoint-api.weave.works share IPs with ptrb.cn.

Name Servers

Two name servers aron.ns.cloudflare.com and lex.ns.cloudflare.com handle the delegation for ptrb.cn.

ptrb.cn shares the same name server setup as other domains, for example gzesi.com, wcgt.cn, e8uo.cn, 0566jy.com and environmental.com.cn.

ptrb.cn at least partially shares name servers with other domains, for example wancolor.com, horizontes.com.pt, italplus.net, bybox.com and msdtwunivadis.com.tw.

These name servers are often used together with jake.ns.cloudflare.com and eloise.ns.cloudflare.com.

Host names with six IP numbers:

aron.ns.cloudflare.com points to 2606:4700:50::adf5:3a45, 2803:f800:50::6ca2:c045, 2a06:98c1:50::ac40:2045, 108.162.192.69, 172.64.32.69 and 173.245.58.69.

lex.ns.cloudflare.com points to 2606:4700:58::adf5:3bc4, 2803:f800:50::6ca2:c1c4, 2a06:98c1:50::ac40:21c4, 108.162.193.196, 172.64.33.196 and 173.245.59.196.