51bicheng.com - robtex.com

51bicheng.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:8ec9🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:4722🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.34Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.142.201🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSterry.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bed🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRterry.ns.cloudflare.com
A2803:f800:50::6ca2:c1ed🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRterry.ns.cloudflare.com
A2a06:98c1:50::ac40:21ed🇺🇸 Cloudflare2a06:98c1:50::/45
PTRterry.ns.cloudflare.com
A108.162.193.237🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRterry.ns.cloudflare.com
A172.64.33.237🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRterry.ns.cloudflare.com
A173.245.59.237🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRterry.ns.cloudflare.com
NSwren.ns.cloudflare.com
A2606:4700:50::a29f:268d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwren.ns.cloudflare.com
A2803:f800:50::6ca2:c28d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRwren.ns.cloudflare.com
A2a06:98c1:50::ac40:228d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRwren.ns.cloudflare.com
A108.162.194.141🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwren.ns.cloudflare.com
A162.159.38.141Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwren.ns.cloudflare.com
A172.64.34.141🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwren.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.34, 172.67.142.201
IPv6 hints2606:4700:3031::ac43:8ec9, 2606:4700:3036::6815:4722
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=239, name=cloudflare-ech.com
SOAterry.ns.cloudflare.comdns@cloudflare.com serial=2401400598

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1775959132

Same first word

51bicheng.com

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NSterry.ns.cloudflare.comwren.ns.cloudflare.comdns.4cun.comns1.51dns.comns2.51dns.comns3.dnsdun.comns3.dnsdun.netA104.21.71.34172.67.142.2012606:4700:3031::ac43:8ec92606:4700:3036::6815:4722116.255.170.6096.62.169.88
○NSdns.4cun.com2015-07-13 → 2015-07-13 · 3 obs
● 2015-07-13 19:07:48
○ 2015-11-16 21:54:50
○ 2026-04-12 02:26:04
○NSns1.51dns.com2016-02-09 → 2016-05-04 · 5 obs
○ 2015-11-16 21:54:50
● 2016-02-09 09:14:32
● 2016-05-04 14:47:08
○ 2017-02-06 14:15:44
○ 2026-04-12 02:26:04
○NSns2.51dns.com2016-05-04 → 2016-05-04 · 4 obs
○ 2016-02-09 09:14:32
● 2016-05-04 14:47:08
○ 2017-02-06 14:15:44
○ 2026-04-12 02:26:04
○NSns3.dnsdun.com2019-04-09 → 2019-04-09 · 4 obs
○ 2017-02-06 14:15:44
● 2019-04-09 19:28:06
○ 2026-02-23 05:36:12
○ 2026-04-12 02:26:04
○NSns3.dnsdun.net2019-04-09 → 2019-04-09 · 4 obs
○ 2017-02-06 14:15:44
● 2019-04-09 19:28:06
○ 2026-02-23 05:36:12
○ 2026-04-12 02:26:04
●NSterry.ns.cloudflare.com2026-02-23 → 2026-04-12 · 3 obs
○ 2019-04-09 19:28:06
● 2026-02-23 05:36:12
● 2026-04-12 02:26:04
●NSwren.ns.cloudflare.com2026-02-23 → 2026-04-12 · 3 obs
○ 2019-04-09 19:28:06
● 2026-02-23 05:36:12
● 2026-04-12 02:26:04
●A104.21.71.342026-02-23 → 2026-04-12 · 3 obs
○ 2019-04-09 19:28:06
● 2026-02-23 05:36:12
● 2026-04-12 02:26:04
○A116.255.170.602015-07-13 → 2015-07-13 · 3 obs
● 2015-07-13 19:07:48
○ 2015-11-16 21:54:50
○ 2026-04-12 02:26:04
●A172.67.142.2012026-02-23 → 2026-04-12 · 3 obs
○ 2019-04-09 19:28:06
● 2026-02-23 05:36:12
● 2026-04-12 02:26:04
●A2606:4700:3031::ac43:8ec92026-02-23 → 2026-04-12 · 3 obs
○ 2019-04-09 19:28:06
● 2026-02-23 05:36:12
● 2026-04-12 02:26:04
●A2606:4700:3036::6815:47222026-02-23 → 2026-04-12 · 3 obs
○ 2019-04-09 19:28:06
● 2026-02-23 05:36:12
● 2026-04-12 02:26:04
○A96.62.169.882019-04-09 → 2019-04-09 · 4 obs
○ 2015-11-16 21:54:50
● 2019-04-09 19:28:06
○ 2026-02-23 05:36:12
○ 2026-04-12 02:26:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net...-
51bicheng.comterry.ns.cloudflare.com, wren.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.141

NS records: terry.ns.cloudflare.com, wren.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51bicheng.com (unsigned zone)

⏱️ Timing

Total: 110ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.142.201, 104.21.71.34
AAAA22606:4700:3031::ac43:8ec9, 2606:4700:3036::6815:4722
NS2terry.ns.cloudflare.com, wren.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1terry.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (terry.ns.cloudflare.com, terry.ns.cloudflare.com, terry.ns.cloudflare.com...)

Analysis

IP Addresses

51bicheng.com maps to four IP numbers: 2606:4700:3031::ac43:8ec9, 2606:4700:3036::6815:4722, 104.21.71.34 and 172.67.142.201.

other host names include wxgfzj.com, fmlodge.co.za, 12vtechnology.com, www.greenwoodvillagecafe.com and pafipckabkotapayakumbuh.org; they share IP numbers with 51bicheng.com.

Name Servers

Two name servers terry.ns.cloudflare.com and wren.ns.cloudflare.com handle the delegation for 51bicheng.com.

51bicheng.com shares the same name server setup as other domains, for instance hb838.com, hnjmcj.com, yhlmgs.com, jb939.com and ajiaedu.com.

51bicheng.com at least partially shares name servers with other domains, for instance c8x.org, crvpm.com, espacemer.eu, fliphand.com and njingacycling.com.

These name servers are commonly used alongside carmelo.ns.cloudflare.com.

Six IP addresses per host:

terry.ns.cloudflare.com points to 2606:4700:58::adf5:3bed, 2803:f800:50::6ca2:c1ed, 2a06:98c1:50::ac40:21ed, 108.162.193.237, 172.64.33.237 and 173.245.59.237; wren.ns.cloudflare.com points to 2606:4700:50::a29f:268d, 2803:f800:50::6ca2:c28d, 2a06:98c1:50::ac40:228d, 108.162.194.141, 162.159.38.141 and 172.64.34.141