`sf2yy.com`

DNSSEC	⚠️ Not signed
A	183.221.224.155^{🇨🇳 CHINAMOBILE-CN183.221.224.0/20 CMI (Customer Route)}
NS	`ns11.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}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		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	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	`ns13.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}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		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	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	`ns14.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	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
SOA	`ns11.xincache.com`ns12@xincache.com serial=1764039981

`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=1785925244

Same first word

sf2yy.com

DNS History

5 records (4 active, 1 former)

●NSns11.xincache.com2026-08-03 → 2026-08-05 · 3 obs

○ 2017-01-04 22:33:30
● 2026-08-03 05:47:50
● 2026-08-05 10:27:22

●NSns13.xincache.com2017-01-04 → 2026-08-05 · 2 obs

● 2017-01-04 22:33:30
● 2026-08-05 10:27:22

●NSns14.xincache.com2017-01-04 → 2026-08-05 · 2 obs

● 2017-01-04 22:33:30
● 2026-08-05 10:27:22

○A112.124.44.1072017-01-04 → 2018-01-18 · 4 obs

● 2017-01-04 22:33:30
● 2018-01-18 08:17:46
○ 2026-08-03 05:47:50
○ 2026-08-05 10:27:22

●A183.221.224.1552026-08-03 → 2026-08-05 · 3 obs

○ 2018-01-18 08:17:46
● 2026-08-03 05:47:50
● 2026-08-05 10:27:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...	-
sf2yy.com	ns13.xincache.com, ns14.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ns13.xincache.com, ns14.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sf2yy.com (unsigned zone)

⏱️ Timing

Total: 146ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.221.224.155`
NS	2	`ns14.xincache.com, ns13.xincache.com`
SOA	1	`ns11.xincache.com ns12.xincache.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns13.xincache.com, ns13.xincache.com, ns13.xincache.com...)

Analysis

IP Addresses

sf2yy.com has exactly one IP address — 183.221.224.155.

Name Servers

sf2yy.com has three name servers — ns11.xincache.com, ns13.xincache.com and ns14.xincache.com.

The name servers of sf2yy.com overlap at least partially with those of other domains — among them dtmts.cn, ddjjyj.com, shdmjd.com and two more.

These name servers commonly appear in delegations together with ns12.xincache.com, ns19.xincache.com, ns20.xincache.com and 6 other.

Hosts with 8 IP addresses each:

ns11.xincache.com points to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 other IP addresses.

ns13.xincache.com points to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 other IP addresses.

Hosts with 7 IP addresses each:

ns14.xincache.com points to 1.12.0.1, 36.155.149.176, 112.80.181.111 and 4 other IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 2402:4e00:1470:2::e IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 2402:4e00:1730::e IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 1.12.0.4 IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 36.155.149.180 IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 112.80.181.45 IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 117.89.178.173 IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 125.94.59.210 IP addresses.

The host names ns11.xincache.com and ns13.xincache.com both resolve to 129.211.176.209 IP addresses.

sf2yy.com - robtex.com

sf2yy.com

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