57721.cn - robtex.com

Check domain reputation for 57721.cn →

57721.cn

DNSSEC⚠️ Not signed
A222.186.190.66🇨🇳 CHINANET-BACKBONE222.184.0.0/13 for jiangsu province
NSlara.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a80🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
A2803:f800:50::6ca2:c080🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlara.ns.cloudflare.com
A2a06:98c1:50::ac40:2080🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlara.ns.cloudflare.com
A108.162.192.128🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
A172.64.32.128🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
A173.245.58.128🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlara.ns.cloudflare.com
NSlou.ns.cloudflare.com
A2606:4700:58::adf5:3bc7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlou.ns.cloudflare.com
A2803:f800:50::6ca2:c1c7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlou.ns.cloudflare.com
A2a06:98c1:50::ac40:21c7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlou.ns.cloudflare.com
A108.162.193.199🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlou.ns.cloudflare.com
A172.64.33.199🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlou.ns.cloudflare.com
A173.245.59.199🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlou.ns.cloudflare.com
SOAlara.ns.cloudflare.comdns@cloudflare.com serial=2412154657

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=2035182273

Same first word

57721.us
57721.cn

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DNS History

22 records (3 active, 19 former)

20162017201820192020202120222023202420252026NSlara.ns.cloudflare.comlou.ns.cloudflare.comdns1.iidns.comdns2.iidns.comdns3.iidns.comdns4.iidns.comdns5.iidns.comdns6.iidns.comA222.186.190.66104.160.182.132104.160.182.135198.148.92.157198.148.92.158198.148.92.49198.148.92.50198.148.92.53198.148.92.54198.148.92.56198.148.92.58198.148.92.62CNAME10203.comfw.ename.net
○NSdns1.iidns.com2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○NSdns2.iidns.com2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○NSdns3.iidns.com2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○NSdns4.iidns.com2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○NSdns5.iidns.com2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○NSdns6.iidns.com2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
●NSlara.ns.cloudflare.com2026-07-20 → 2026-08-15 · 3 obs
○ 2017-08-07 22:31:04
● 2026-07-20 18:43:26
● 2026-08-15 05:54:16
●NSlou.ns.cloudflare.com2026-07-20 → 2026-08-15 · 3 obs
○ 2017-08-07 22:31:04
● 2026-07-20 18:43:26
● 2026-08-15 05:54:16
○A104.160.182.1322016-11-30 → 2016-11-30 · 4 obs
○ 2016-07-18 21:45:34
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○A104.160.182.1352016-11-30 → 2016-11-30 · 4 obs
○ 2016-07-18 21:45:34
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○A198.148.92.1572016-01-14 → 2016-01-14 · 4 obs
○ 2015-06-04 17:00:46
● 2016-01-14 02:08:00
○ 2016-07-18 21:45:34
○ 2026-08-15 05:54:16
○A198.148.92.1582016-01-14 → 2016-01-14 · 4 obs
○ 2015-06-04 17:00:46
● 2016-01-14 02:08:00
○ 2016-07-18 21:45:34
○ 2026-08-15 05:54:16
○A198.148.92.492016-07-18 → 2016-07-18 · 4 obs
○ 2016-01-14 02:08:00
● 2016-07-18 21:45:34
○ 2016-11-30 20:47:58
○ 2026-08-15 05:54:16
○A198.148.92.502016-07-18 → 2016-07-18 · 4 obs
○ 2016-01-14 02:08:00
● 2016-07-18 21:45:34
○ 2016-11-30 20:47:58
○ 2026-08-15 05:54:16
○A198.148.92.532015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 17:00:46
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○A198.148.92.542016-01-14 → 2016-01-14 · 4 obs
○ 2015-06-04 17:00:46
● 2016-01-14 02:08:00
○ 2016-07-18 21:45:34
○ 2026-08-15 05:54:16
○A198.148.92.562015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 17:00:46
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
○A198.148.92.582015-06-04 → 2016-01-14 · 4 obs
● 2015-06-04 17:00:46
● 2016-01-14 02:08:00
○ 2016-07-18 21:45:34
○ 2026-08-15 05:54:16
○A198.148.92.622015-06-04 → 2015-06-04 · 3 obs
● 2015-06-04 17:00:46
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16
●A222.186.190.662026-08-15 → 2026-08-15 · 3 obs
○ 2017-08-07 22:31:04
● 2026-08-15 05:54:12
● 2026-08-15 05:54:16
○CNAME10203.com2017-08-07 → 2017-08-07 · 4 obs
○ 2016-11-30 20:47:58
● 2017-08-07 22:31:04
○ 2026-07-20 18:43:26
○ 2026-08-15 05:54:16
○CNAMEfw.ename.net2015-06-04 → 2016-11-30 · 4 obs
● 2015-06-04 17:00:46
● 2016-11-30 20:47:58
○ 2017-08-07 22:31:04
○ 2026-08-15 05:54:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
57721.cnlou.ns.cloudflare.com, lara.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.128

NS records: lou.ns.cloudflare.com, lara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 57721.cn (unsigned zone)

⏱️ Timing

Total: 1340ms | Queries: -

📄 Records

TypeCountSample Data
A1222.186.190.66
NS2lara.ns.cloudflare.com, lou.ns.cloudflare.com
SOA1lara.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

57721.cn resolves to just one IP address, 222.186.190.66.

Two other host names, along with 69148.cn, wovq.cn and www.wynne.cn, also share IP numbers with 57721.cn.

Name Servers

DNS delegation for 57721.cn points to two name servers: lara.ns.cloudflare.com and lou.ns.cloudflare.com.

57721.cn shares its NS records with other domains, for example loverboy.net, 46041.cn, wkti.cn and two others.

At least some of 57721.cn's name servers are shared with other domains, for example dosimetrie.nl, carimportexport.com, oscarlundberg.com and two more.

DNS names with 6 IP addresses:

lara.ns.cloudflare.com has IP addresses 108.162.192.128, 172.64.32.128 and 173.245.58.128, plus 3 other.

lou.ns.cloudflare.com has IP addresses 108.162.193.199, 172.64.33.199 and 173.245.59.199, plus 3 other.