`sy83.cn`

DNSSEC	⚠️ Not signed
A	139.129.172.17^{🇨🇳 Alibaba-Cloud139.129.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ce1.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ce2.xincache.com`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	220.196.136.35^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
MX	`mail1.sy83.cn` ⭐
MX	`mail.sy83.cn`⁽¹⁰⁾
SOA	`ce1.xincache.com`enterprise1dnsadmin@dnspod.com serial=1667827606

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034715235

Subdomains

mail.sy83.cn

mail1.sy83.cn

Same first word

sy83.cn

sy83.com

Similar names

38ys.com

3ys8.com

3y8s.com

38sy.app

ys83.com

ys38.com

38ys.cn

DNS History

8 records (5 active, 3 former)

●NSce1.xincache.com2026-03-29 → 2026-04-26 · 3 obs

○ 2017-07-08 11:39:34
● 2026-03-29 05:14:40
● 2026-04-26 18:15:22

●NSce2.xincache.com2026-03-29 → 2026-04-26 · 3 obs

○ 2017-07-08 11:39:34
● 2026-03-29 05:14:40
● 2026-04-26 18:15:22

○NSns1.ce.net.cn2015-08-13 → 2017-07-08 · 4 obs

● 2015-08-13 02:36:18
● 2017-07-08 11:39:34
○ 2026-03-29 05:14:40
○ 2026-04-26 18:15:22

○NSns2.ce.net.cn2015-08-13 → 2017-07-08 · 4 obs

● 2015-08-13 02:36:18
● 2017-07-08 11:39:34
○ 2026-03-29 05:14:40
○ 2026-04-26 18:15:22

●MXmail.sy83.cn2015-08-13 → 2026-04-26 · 2 obs

● 2015-08-13 02:36:18
● 2026-04-26 18:15:22

●MXmail1.sy83.cn2015-08-13 → 2026-04-26 · 2 obs

● 2015-08-13 02:36:18
● 2026-04-26 18:15:22

●A139.129.172.172016-04-18 → 2026-04-26 · 3 obs

○ 2016-01-24 09:15:28
● 2016-04-18 12:37:40
● 2026-04-26 18:15:22

○A211.137.44.1682015-08-13 → 2016-01-24 · 4 obs

● 2015-08-13 02:36:18
● 2016-01-24 09:15:28
○ 2016-04-18 12:37:40
○ 2026-04-26 18:15:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...	-
sy83.cn	ce1.xincache.com, ce2.xincache.com	-

✅ Authoritative Response

Server:129.211.176.239

NS records: ce1.xincache.com, ce2.xincache.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn

⏱️ Timing

Total: 3632ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.129.172.17`
NS	2	`ce1.xincache.com, ce2.xincache.com`
MX	2	`mail.sy83.cn (pri: 5), mail1.sy83.cn (pri: 10)`
SOA	1	`ce1.xincache.com enterprise1dnsadmin.dns`

Analysis

Hierarchy

sy83.cn is the parent of mail.sy83.cn and mail1.sy83.cn.

IP Addresses

sy83.cn points to an IP address: 139.129.172.17.

Name Servers

Two name servers ce1.xincache.com and ce2.xincache.com handle the delegation for sy83.cn.

sy83.cn shares the same name server setup as other domains, for instance china-cqc.cn, winnertex.cn, tjysyy.cn, hnpowerwell.com and sh-welding.com.

sy83.cn at least partially shares name servers with other domains, for instance njastar.com, fhonk.cn, senglass.com, sdsdzc.com and jinlidags.net.

These name servers are commonly used with ns11.xincache.com and f1g1ns1.dnspod.net.

Host names with seven IP numbers:

Host name ce1.xincache.com points to 2402:4e00:1470:2::e, 1.12.0.4, 112.80.181.45, 117.89.178.173, 117.135.128.235, 125.94.59.210 and 129.211.176.209.

Host names with six IP numbers:

Host name ce2.xincache.com points to 2402:4e00:111:fff::c, 1.12.0.1, 117.89.178.184, 117.135.128.235, 129.211.176.239 and 220.196.136.35.

Host names that point to 117.135.128.235: ce1.xincache.com and ce2.xincache.com.

Mail Servers

sy83.cn is handled by two mail servers: mail1.sy83.cn and mail.sy83.cn.

sy83.cn - robtex.com

sy83.cn

cn