`isbiding.com`

DNSSEC	⚠️ Not signed
A	121.42.157.208^{🇨🇳 Alibaba-Cloud121.42.128.0/17}
NS	`ns17.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
			PTR	`ip-1-12-0-4.defastlink.net`
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
			PTR	`ip-36-155-149-180.defastlink.net`
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
			PTR	`ip-112-80-181-45.defastlink.net`
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
			PTR	`ip-117-89-178-173.defastlink.net`
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
			PTR	`ip-125-94-59-210.defastlink.net`
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
			PTR	`ip-129-211-176-209.defastlink.net`
NS	`ns18.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}
			PTR	`ip-1-12-0-1.defastlink.net`
		A	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
			PTR	`ip-36-155-149-176.defastlink.net`
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
			PTR	`ip-112-80-181-111.defastlink.net`
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
			PTR	`ip-117-89-178-184.defastlink.net`
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
			PTR	`ip-129-211-176-239.defastlink.net`
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
			PTR	`ip-163-177-5-23.defastlink.net`
SOA	`ns17.xincache.com`enterprise1dnsadmin@dnspod.com serial=1576608758

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

Same first word

isbiding.com

DNS History

5 records (3 active, 2 former)

○NSns11.xincache.com2015-06-19 → 2015-06-19 · 3 obs

● 2015-06-19 23:33:14
○ 2015-10-24 11:54:02
○ 2026-03-11 10:48:18

○NSns12.xincache.com2015-06-19 → 2015-06-19 · 3 obs

● 2015-06-19 23:33:14
○ 2015-10-24 11:54:02
○ 2026-03-11 10:48:18

●NSns17.xincache.com2015-10-24 → 2026-03-11 · 3 obs

○ 2015-06-19 23:33:14
● 2015-10-24 11:54:02
● 2026-03-11 10:48:18

●NSns18.xincache.com2015-10-24 → 2026-03-11 · 3 obs

○ 2015-06-19 23:33:14
● 2015-10-24 11:54:02
● 2026-03-11 10:48:18

●A121.42.157.2082015-06-19 → 2026-03-11 · 2 obs

● 2015-06-19 23:33:14
● 2026-03-11 10:48:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
isbiding.com	ns17.xincache.com, ns18.xincache.com	12 records

✅ Authoritative Response

Server: 1.12.0.4

NS records: ns17.xincache.com, ns18.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isbiding.com (unsigned zone)

⏱️ Timing

Total: 171ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.42.157.208`
NS	2	`ns18.xincache.com, ns17.xincache.com`
SOA	1	`ns17.xincache.com enterprise1dnsadmin.dn`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns17.xincache.com, ns17.xincache.com, ns17.xincache.com...)

Analysis

IP Addresses

isbiding.com points to a single IP: 121.42.157.208.

Other host names, for instance zhiyuanshop.com, share IP numbers with isbiding.com.

Name Servers

isbiding.com's delegation is to two name servers ns17.xincache.com and ns18.xincache.com.

isbiding.com shares the same name server configuration as other domains, such as mmgcarpet.com, veacam.cn, aaarb.com, jinanoude.com and fsxiangyu.com.

isbiding.com at least partially shares its name servers with other domains, for instance cqbbzj.com.cn, dpggz.com, cnsunnai.com, xnuo.cn and bbdhome.com.

These name servers are often used together with the name servers ns11.xincache.com.

Host names with eight IP numbers: ns17.xincache.com points to: 2402:4e00:1470:2::e, 2402:4e00:1730::e, 1.12.0.4, 36.155.149.180, 112.80.181.45, 117.89.178.173, 125.94.59.210 and 129.211.176.209. Host names with seven IP numbers: ns18.xincache.com points to: 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 112.80.181.111, 117.89.178.184, 129.211.176.239 and 163.177.5.23.

isbiding.com - robtex.com

isbiding.com

com