51909.com.cn - robtex.com

51909.com.cn

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:5e16🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:da68🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.94.22Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.218.104🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSetta.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
A2803:f800:50::6ca2:c09c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRetta.ns.cloudflare.com
A2a06:98c1:50::ac40:209c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRetta.ns.cloudflare.com
A108.162.192.156🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
A172.64.32.156🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
A173.245.58.156🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRetta.ns.cloudflare.com
NSmicah.ns.cloudflare.com
A2606:4700:58::adf5:3bce🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmicah.ns.cloudflare.com
A2803:f800:50::6ca2:c1ce🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmicah.ns.cloudflare.com
A2a06:98c1:50::ac40:21ce🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmicah.ns.cloudflare.com
A108.162.193.206🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmicah.ns.cloudflare.com
A172.64.33.206🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmicah.ns.cloudflare.com
A173.245.59.206🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmicah.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.94.22, 172.67.218.104
IPv6 hints2606:4700:3035::6815:5e16, 2606:4700:3037::ac43:da68
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=145, name=cloudflare-ech.com
SOAetta.ns.cloudflare.comdns@cloudflare.com serial=2400608120

com.cn

DNSSEC⚠️ Not signed
NSa.dns.cn ⭐ ⚠️ Not in parent delegation
NSb.dns.cn ⚠️ Not in parent delegation
NSc.dns.cn ⚠️ Not in parent delegation
NScns.cernet.net ⚠️ Not in parent delegation
NSd.dns.cn ⚠️ Not in parent delegation
NSe.dns.cn ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2030523043
WOT: NOT_SAFE (20/100)

Same first word

51909.net
51909.com.cn

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DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSetta.ns.cloudflare.commicah.ns.cloudflare.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netA104.21.94.22172.67.218.1042606:4700:3035::6815:5e162606:4700:3037::ac43:da68107.163.190.188210.56.50.123
●NSetta.ns.cloudflare.com2026-04-16 → 2026-04-19 · 3 obs
○ 2020-04-10 16:21:00
● 2026-04-16 01:45:28
● 2026-04-19 22:51:06
○NSf1g1ns1.dnspod.net2015-12-11 → 2020-04-10 · 4 obs
● 2015-12-11 11:40:00
● 2020-04-10 16:21:00
○ 2026-04-16 01:45:28
○ 2026-04-19 22:51:06
○NSf1g1ns2.dnspod.net2015-12-11 → 2017-03-28 · 4 obs
● 2015-12-11 11:40:00
● 2017-03-28 12:28:36
○ 2026-04-16 01:45:28
○ 2026-04-19 22:51:06
●NSmicah.ns.cloudflare.com2026-04-16 → 2026-04-19 · 3 obs
○ 2020-04-10 16:21:00
● 2026-04-16 01:45:28
● 2026-04-19 22:51:06
●A104.21.94.222026-04-16 → 2026-04-19 · 3 obs
○ 2020-04-10 16:21:00
● 2026-04-16 01:45:28
● 2026-04-19 22:51:06
○A107.163.190.1882020-04-10 → 2020-04-10 · 4 obs
○ 2016-07-21 22:49:18
● 2020-04-10 16:21:00
○ 2026-04-16 01:45:28
○ 2026-04-19 22:51:06
●A172.67.218.1042026-04-16 → 2026-04-19 · 3 obs
○ 2020-04-10 16:21:00
● 2026-04-16 01:45:28
● 2026-04-19 22:51:06
○A210.56.50.1232015-12-11 → 2016-07-21 · 4 obs
● 2015-12-11 11:40:00
● 2016-07-21 22:49:18
○ 2020-04-10 16:21:00
○ 2026-04-19 22:51:06
●A2606:4700:3035::6815:5e162026-04-16 → 2026-04-19 · 3 obs
○ 2020-04-10 16:21:00
● 2026-04-16 01:45:28
● 2026-04-19 22:51:06
●A2606:4700:3037::ac43:da682026-04-16 → 2026-04-19 · 3 obs
○ 2020-04-10 16:21:00
● 2026-04-16 01:45:28
● 2026-04-19 22:51:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
51909.com.cnetta.ns.cloudflare.com, micah.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.156

NS records: etta.ns.cloudflare.com, micah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51909.com.cn (unsigned zone)

⏱️ Timing

Total: 934ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.218.104, 104.21.94.22
AAAA22606:4700:3037::ac43:da68, 2606:4700:3035::6815:5e16
NS2etta.ns.cloudflare.com, micah.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1etta.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

51909.com.cn points to four IP numbers: 2606:4700:3035::6815:5e16, 2606:4700:3037::ac43:da68, 104.21.94.22 and 172.67.218.104.

Other host names including kanasi.edu.gr, nhomduc.net, salecovauvera.com, wii.scenebeta.com and flingunite.com share IP numbers with 51909.com.cn.

Name Servers

51909.com.cn's delegation uses two name servers, etta.ns.cloudflare.com and micah.ns.cloudflare.com.

51909.com.cn shares the same name server setup as other domains, for example cumulus.fi, e10bensiini.fi, downtownlr.com, teambim.eu and nacamar.com.cn.

51909.com.cn at least partially shares name servers with other domains, including network(0x65726f746963).com, brixxsupport.com, gort-modernwonen.nl, purposedmedia.com and elaphjournal.com.

These name servers are commonly used with love.ns.cloudflare.com and vick.ns.cloudflare.com.

Host names with six IP numbers:

etta.ns.cloudflare.com points to: 2606:4700:50::adf5:3a9c, 2803:f800:50::6ca2:c09c, 2a06:98c1:50::ac40:209c, 108.162.192.156, 172.64.32.156 and 173.245.58.156.

micah.ns.cloudflare.com points to: 2606:4700:58::adf5:3bce, 2803:f800:50::6ca2:c1ce, 2a06:98c1:50::ac40:21ce, 108.162.193.206, 172.64.33.206 and 173.245.59.206.