sybf.com.cn - robtex.com

sybf.com.cn

DNSSEC⚠️ Not signed
A154.91.186.24🇭🇰 AROSSCLOUD-AS154.91.184.0/21 arosscloud
NSns1.julydns.com ⭐ ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.julydns.com ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
SOAns1.julydns.commaster@jmdns.com serial=1758604425

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=2030723972
WOT: NOT_SAFE (20/100)

Same first word

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sybf.com
sybf.com.cn

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fsby.cn

DNS History

19 records (5 active, 14 former)

20162017201820192020202120222023202420252026NSns1.judns.comns1.julydns.comns2.judns.comns2.julydns.comdns1.iidns.comdns2.iidns.comdns3.iidns.comdns4.iidns.comdns5.iidns.comdns6.iidns.comjm1.dns.comjm2.dns.comns1.xrnet.cnns2.xrnet.cnMXmail.sybf.com.cnA154.91.186.24113.10.190.137154.91.220.122203.158.16.39
○NSdns1.iidns.com2016-07-04 → 2016-07-04 · 4 obs
○ 2015-11-23 01:34:42
● 2016-07-04 02:01:40
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
○NSdns2.iidns.com2016-07-04 → 2016-07-04 · 4 obs
○ 2015-11-23 01:34:42
● 2016-07-04 02:01:40
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
○NSdns3.iidns.com2016-07-04 → 2016-07-04 · 4 obs
○ 2015-11-23 01:34:42
● 2016-07-04 02:01:40
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
○NSdns4.iidns.com2016-07-04 → 2016-07-04 · 4 obs
○ 2015-11-23 01:34:42
● 2016-07-04 02:01:40
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
○NSdns5.iidns.com2016-07-04 → 2016-07-04 · 4 obs
○ 2015-11-23 01:34:42
● 2016-07-04 02:01:40
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
○NSdns6.iidns.com2016-07-04 → 2016-07-04 · 4 obs
○ 2015-11-23 01:34:42
● 2016-07-04 02:01:40
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
○NSjm1.dns.com2019-02-14 → 2019-02-14 · 4 obs
○ 2016-07-04 02:01:40
● 2019-02-14 06:10:06
○ 2026-06-11 15:02:10
○ 2026-08-04 00:59:56
○NSjm2.dns.com2019-02-14 → 2019-02-14 · 4 obs
○ 2016-07-04 02:01:40
● 2019-02-14 06:10:06
○ 2026-06-11 15:02:10
○ 2026-08-04 00:59:56
●NSns1.judns.com2026-06-11 → 2026-08-04 · 3 obs
○ 2019-02-14 06:10:06
● 2026-06-11 15:02:10
● 2026-08-04 00:59:56
●NSns1.julydns.com2026-06-11 → 2026-08-04 · 5 obs
○ 2019-02-14 06:10:06
● 2026-06-11 15:02:10
○ 2026-07-10 12:00:02
● 2026-08-04 00:59:54
● 2026-08-04 00:59:56
○NSns1.xrnet.cn2015-07-14 → 2015-07-14 · 3 obs
● 2015-07-14 06:26:02
○ 2015-11-23 01:34:42
○ 2026-08-04 00:59:56
●NSns2.judns.com2026-06-11 → 2026-08-04 · 3 obs
○ 2019-02-14 06:10:06
● 2026-06-11 15:02:10
● 2026-08-04 00:59:56
●NSns2.julydns.com2026-06-11 → 2026-08-04 · 5 obs
○ 2019-02-14 06:10:06
● 2026-06-11 15:02:10
○ 2026-07-10 12:00:02
● 2026-08-04 00:59:54
● 2026-08-04 00:59:56
○NSns2.xrnet.cn2015-07-14 → 2015-07-14 · 3 obs
● 2015-07-14 06:26:02
○ 2015-11-23 01:34:42
○ 2026-08-04 00:59:56
○MXmail.sybf.com.cn2015-07-14 → 2015-07-14 · 3 obs
● 2015-07-14 06:26:02
○ 2015-11-23 01:34:42
○ 2026-08-04 00:59:56
○A113.10.190.1372016-02-26 → 2016-02-26 · 4 obs
○ 2015-11-23 01:34:42
● 2016-02-26 13:48:54
○ 2019-02-14 06:10:06
○ 2026-08-04 00:59:56
●A154.91.186.242026-06-11 → 2026-08-04 · 5 obs
○ 2019-02-14 06:10:06
● 2026-06-11 15:02:10
○ 2026-07-10 12:00:02
● 2026-08-04 00:59:54
● 2026-08-04 00:59:56
○A154.91.220.1222019-02-14 → 2019-02-14 · 4 obs
○ 2016-02-26 13:48:54
● 2019-02-14 06:10:06
○ 2026-06-11 15:02:10
○ 2026-08-04 00:59:56
○A203.158.16.392015-07-14 → 2015-07-14 · 3 obs
● 2015-07-14 06:26:02
○ 2015-11-23 01:34:42
○ 2026-08-04 00:59:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
sybf.com.cnns1.judns.com, ns2.judns.com-

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 920ms | Queries: -

📄 Records

TypeCountSample Data
A1154.91.186.24
NS2ns1.julydns.com, ns2.julydns.com
SOA1ns1.julydns.com master.jmdns.com

Analysis

IP Addresses

sybf.com.cn resolves to one IP address: 154.91.186.24.

The host names undergo.com.cn, zjjetbxw.cn, gocon.cn and yoknet.cn all share IP numbers with sybf.com.cn.

Name Servers

The authoritative name servers for sybf.com.cn are ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

sybf.com.cn has at least partial name server overlap with other domains, such as jeconsulteunpsy.com, zc979.com, bzmjy.com and two others.

It is common to see these name servers used together with name servers ns1.onclouddns.com and ns2.onclouddns.com.

Four host names each point to one IP address: ns1.judns.com and ns2.judns.com both point to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com both point to 162.159.48.223.

Host names pointing to 162.159.27.251 IP addresses: ns1.judns.com and ns2.judns.com.

Host names pointing to 162.159.48.223 IP addresses: ns1.julydns.com and ns2.julydns.com.