51x.cc - robtex.com

51x.cc

DNSSEC⚠️ Not signed
A2606:4700:3036::6815:409b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9825🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.155Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.152.37🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbrenna.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26b0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenna.ns.cloudflare.com
A2803:f800:50::6ca2:c2b0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbrenna.ns.cloudflare.com
A2a06:98c1:50::ac40:22b0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbrenna.ns.cloudflare.com
A108.162.194.176🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenna.ns.cloudflare.com
A162.159.38.176Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenna.ns.cloudflare.com
A172.64.34.176🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrenna.ns.cloudflare.com
NSgrant.ns.cloudflare.com
A2606:4700:58::a29f:2c82🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrant.ns.cloudflare.com
A2803:f800:50::6ca2:c382🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgrant.ns.cloudflare.com
A2a06:98c1:50::ac40:2382🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgrant.ns.cloudflare.com
A108.162.195.130🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrant.ns.cloudflare.com
A162.159.44.130Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrant.ns.cloudflare.com
A172.64.35.130🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrant.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.155, 172.67.152.37
IPv6 hints2606:4700:3036::6815:409b, 2606:4700:3037::ac43:9825
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=220, name=cloudflare-ech.com
SOAbrenna.ns.cloudflare.comdns@cloudflare.com serial=2410186338

cc

DNSSEC🔒 Signed (DS record present)
NSac1.nstld.com ⭐
NSac2.nstld.com
NSac3.nstld.com
NSac4.nstld.com
SOAac1.nstld.cominfo@verisign-grs.com serial=1785446683

Same first word

51x.app
51x.ai
51x.com
51x.cc
51x.bet
51x.casa
51x.online
51x.ren
51x.live

Similar names

15x.info
x15.se
x15.us
x15.com.br
x51.com
1x5.com
x15.ca
x15.nl
x51.eu
x51.org
5x1.com
x51.ru
1x5.de
x51.net
x15.de
15x.cc
5x1.org
x15.cn
1x5.ru
x15.fr
15x.games
x15.org
x51.de
1x5.nl
15x.org
15x.cn
x15.me
x15.com.au
x51.jp
15x.nl
x15.io
x15.ru
5x1.de
x15.com
x15.net
5x1.net
x51.co
15x.xyz
1x5.info
1x5.net
15x.net
x15.homes
x51.pl
x51.cz
1x5.org
15x.com
15x.de

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSbrenna.ns.cloudflare.comgrant.ns.cloudflare.comdns3.hichina.comdns4.hichina.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netMXmxbiz1.qq.commxbiz2.qq.comA104.21.64.155172.67.152.372606:4700:3036::6815:409b2606:4700:3037::ac43:982547.90.79.23958.96.191.113
●NSbrenna.ns.cloudflare.com2026-07-02 → 2026-07-30 · 3 obs
○ 2020-03-24 21:33:04
● 2026-07-02 18:24:04
● 2026-07-30 21:32:12
○NSdns3.hichina.com2020-03-24 → 2020-03-24 · 4 obs
○ 2017-03-30 02:24:32
● 2020-03-24 21:33:04
○ 2026-07-02 18:24:04
○ 2026-07-30 21:32:12
○NSdns4.hichina.com2020-03-24 → 2020-03-24 · 4 obs
○ 2017-03-30 02:24:32
● 2020-03-24 21:33:04
○ 2026-07-02 18:24:04
○ 2026-07-30 21:32:12
○NSf1g1ns1.dnspod.net2015-06-05 → 2017-03-30 · 4 obs
● 2015-06-05 02:39:30
● 2017-03-30 02:24:32
○ 2020-03-24 21:33:04
○ 2026-07-30 21:32:12
○NSf1g1ns2.dnspod.net2015-06-05 → 2017-03-30 · 4 obs
● 2015-06-05 02:39:30
● 2017-03-30 02:24:32
○ 2020-03-24 21:33:04
○ 2026-07-30 21:32:12
●NSgrant.ns.cloudflare.com2026-07-02 → 2026-07-30 · 3 obs
○ 2020-03-24 21:33:04
● 2026-07-02 18:24:04
● 2026-07-30 21:32:12
○MXmxbiz1.qq.com2017-03-30 → 2017-03-30 · 3 obs
● 2017-03-30 02:24:32
○ 2020-03-24 21:33:04
○ 2026-07-30 21:32:12
○MXmxbiz2.qq.com2017-03-30 → 2017-03-30 · 3 obs
● 2017-03-30 02:24:32
○ 2020-03-24 21:33:04
○ 2026-07-30 21:32:12
●A104.21.64.1552026-07-02 → 2026-07-30 · 3 obs
○ 2020-03-24 21:33:04
● 2026-07-02 18:24:04
● 2026-07-30 21:32:12
●A172.67.152.372026-07-02 → 2026-07-30 · 3 obs
○ 2020-03-24 21:33:04
● 2026-07-02 18:24:04
● 2026-07-30 21:32:12
●A2606:4700:3036::6815:409b2026-07-02 → 2026-07-30 · 3 obs
○ 2020-03-24 21:33:04
● 2026-07-02 18:24:04
● 2026-07-30 21:32:12
●A2606:4700:3037::ac43:98252026-07-02 → 2026-07-30 · 3 obs
○ 2020-03-24 21:33:04
● 2026-07-02 18:24:04
● 2026-07-30 21:32:12
○A47.90.79.2392020-03-24 → 2020-03-24 · 4 obs
○ 2016-09-09 05:29:46
● 2020-03-24 21:33:04
○ 2026-07-02 18:24:04
○ 2026-07-30 21:32:12
○A58.96.191.1132015-06-05 → 2016-09-09 · 4 obs
● 2015-06-05 02:39:30
● 2016-09-09 05:29:46
○ 2020-03-24 21:33:04
○ 2026-07-30 21:32:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ccac1.nstld.com, ac2.nstld.com, ac3.nstld.com, ac4.nstld.com-
51x.ccbrenna.ns.cloudflare.com, grant.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.176

NS records: brenna.ns.cloudflare.com, grant.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51x.cc (unsigned zone)

⏱️ Timing

Total: 236ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.152.37, 104.21.64.155
AAAA22606:4700:3037::ac43:9825, 2606:4700:3036::6815:409b
NS2brenna.ns.cloudflare.com, grant.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1brenna.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

51x.cc has four IP addresses: 104.21.64.155, 172.67.152.37, 2606:4700:3036::6815:409b and 2606:4700:3037::ac43:9825.

Among the host names that share IP numbers with 51x.cc are qrcode.bkn.go.th, javhdpro.lat, www.resumexposure.com and two others.

Name Servers

Two name servers handle the delegation for 51x.cc: brenna.ns.cloudflare.com and grant.ns.cloudflare.com.

51x.cc has the same name server delegation as a number of other domains, such as dastab.de, todaymarketinsight.com, sign-of-jonah.com and two more.

51x.cc has at least partial name server overlap with other domains, such as vcdtraders.com, venhuisschool.nl, autobedrijfremmers.nl and two others.

It is common to find these name servers paired with the name servers aaden.ns.cloudflare.com, ricardo.ns.cloudflare.com, konnor.ns.cloudflare.com and sharon.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

brenna.ns.cloudflare.com resolves to 108.162.194.176, 162.159.38.176 and 172.64.34.176 among others, with 3 other IP addresses in total.

grant.ns.cloudflare.com resolves to 108.162.195.130, 162.159.44.130 and 172.64.35.130 among others, with 3 other IP addresses in total.