`americanstudy.org`

DNSSEC	⚠️ Not signed
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=1760665876

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1774361757

Same first word

americanstudy.edu.vn

americanstudy.org

Similar names

aandmsecurity.co.uk

DNS History

4 records (3 active, 1 former)

●NSns11.xincache.com2026-03-04 → 2026-03-24 · 3 obs

○ 2015-08-20 00:09:52
● 2026-03-04 04:29:08
● 2026-03-24 14:40:00

●NSns13.xincache.com2015-08-20 → 2026-03-24 · 2 obs

● 2015-08-20 00:09:52
● 2026-03-24 14:40:00

●NSns14.xincache.com2015-08-20 → 2026-03-24 · 2 obs

● 2015-08-20 00:09:52
● 2026-03-24 14:40:00

○A103.133.177.1702020-01-03 → 2020-01-03 · 3 obs

● 2020-01-03 09:57:58
○ 2026-03-04 04:29:08
○ 2026-03-24 14:40:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
americanstudy.org	ns13.xincache.com, ns14.xincache.com	-

✅ Authoritative Response

Server:163.177.5.23

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for americanstudy.org (unsigned zone)

⏱️ Timing

Total: 3909ms | Queries: -

📄 Records

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

Analysis

Name Servers

The domain americanstudy.org is delegated to three name servers: ns11.xincache.com, ns13.xincache.com and ns14.xincache.com.

americanstudy.org shares name servers with other domains at least partially, for instance feiyachem.com, shkg-yipei.com, sdljrc.com, aimiunion.com and popbook.com.