WWW.RTSAK.COM - 1course.cn

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1course.cn checked at 2025-10-19T03:13:09.778Z 604ms 210/210/210 100% R:15

`1course.cn`

NS	`vip3.alidns.com`
		A	2408:4009:500::3 ^{🇨🇳 Alibaba}
		A	8.212.93.3^{🇭🇰 ASEPL-AS-AP}
		A	140.205.1.5^{🇨🇳 Alibaba}
		A	170.33.32.210^{🇸🇬 Alibaba}
		A	170.33.40.136^{🇸🇬 ASEPL-AS-AP}
		A	170.33.73.26^{🇸🇬 Alibaba}
		A	170.33.80.10^{🇸🇬 Alibaba}
NS	`vip4.alidns.com`
		A	2408:4009:500::4 ^{🇨🇳 Alibaba}
		A	8.212.93.4^{🇭🇰 ASEPL-AS-AP}
		A	140.205.1.6^{🇨🇳 Alibaba}
		A	170.33.32.211^{🇸🇬 Alibaba}
		A	170.33.40.137^{🇸🇬 ASEPL-AS-AP}
		A	170.33.73.27^{🇸🇬 Alibaba}
		A	170.33.80.11^{🇸🇬 Alibaba}
NS	`ns3.dnsv4.com`
		A	2402:4e00:1470:2::10 ^{🇨🇳 Tencent-CN}
		A	1.12.0.24^{🇨🇳 Tencent Global}
		A	1.12.0.25^{🇨🇳 Tencent Global}
		A	36.155.149.198^{🇨🇳 CMNET-Jiangsu-AP}
		A	43.134.249.54^{🇸🇬 Tencent Global}
		A	112.80.181.77^{🇨🇳 China Unicom}
		A	124.64.205.153^{🇨🇳 China Unicom Beijing Province Network}
		A	125.94.59.153^{🇨🇳 China Telecom}
		A	129.211.176.242^{🇨🇳 Tencent-CN}
NS	`ns4.dnsv4.com`
		A	2402:4e00:111:fff::d ^{🇨🇳 Tencent-CN}
		A	1.12.0.23^{🇨🇳 Tencent Global}
		A	1.12.0.26^{🇨🇳 Tencent Global}
		A	43.130.172.54^{🇸🇬 Tencent Global}
		A	49.7.107.153^{🇨🇳 CHINANET-IDC-BJ-AP}
		A	101.227.168.53^{🇨🇳 CHINANET-SH-AP}
		A	111.13.203.53^{🇨🇳 China Mobile Communications Group Co., Ltd.}
		A	117.135.128.153^{🇨🇳 China Mobile Communications Group Co., Ltd.}
			PTR	`.`
		A	163.177.5.53^{🇨🇳 UNICOM-GuangZhou-IDC}
		A	220.196.136.53^{🇨🇳 UNICOM-SHFT-IDC}
MX	`mx1.qiye.aliyun.com`
		A	47.246.137.47^{🇺🇸 Alibaba}
MX	`mx2.qiye.aliyun.com`
		A	47.246.136.231^{🇺🇸 Alibaba}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
MX	`mx3.qiye.aliyun.com`
		A	47.246.136.231^{🇺🇸 Alibaba}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba}
A	121.196.132.74^{🇨🇳 Alibaba (China)}

`cn`

	NS	`a.dns.cn`
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net`

Up

www.1course.cn

server.1course.cn

Starts with same word

1course.com

1course.ru

1course.cn

Starts similarily

source1.de

1source.com.my

source1.in

source1.se

1source.co.uk

oursec1.com

course1.com

1course.com

source1.com

1source.com.sg

1source.global

1course.ru

1source.ru

1source.com

sou1rce.com

1source.org.au

1source.in

1course.cn

source1.no

1source.ch

1source.net

1source.mx

source1.ca

1source.solutions

source1.net

1source.ph

source1.parts

1source.ca

1source.one

1source.org

AI analysis

1course.cn is a parent of www.1course.cn and server.1course.cn.

1course.cn points to a single IP address: 121.196.132.74.

Other host names, for example www.1course.cn, yunat.net and shuyun.cn share IPs with 1course.cn.

1course.cn is delegated to four name servers: vip3.alidns.com, vip4.alidns.com, ns3.dnsv4.com and ns4.dnsv4.com.

1course.cn at least partially shares name servers with other domains, for example speiyou.cn, tongtool.com, szgla.com, wuliangroup.cn and fbrq.com.

Ten IP numbers: ns4.dnsv4.com points to: 2402:4e00:111:fff::d, 1.12.0.23, 1.12.0.26, 43.130.172.54, 49.7.107.153, 101.227.168.53, 111.13.203.53, 117.135.128.153, 163.177.5.53 and 220.196.136.53.

Nine IP numbers: ns3.dnsv4.com points to: 2402:4e00:1470:2::10, 1.12.0.24, 1.12.0.25, 36.155.149.198, 43.134.249.54, 112.80.181.77, 124.64.205.153, 125.94.59.153 and 129.211.176.242.

Seven IP numbers: vip3.alidns.com points to: 2408:4009:500::3, 8.212.93.3, 140.205.1.5, 170.33.32.210, 170.33.40.136, 170.33.73.26 and 170.33.80.10.

Seven IP numbers: vip4.alidns.com points to: 2408:4009:500::4, 8.212.93.4, 140.205.1.6, 170.33.32.211, 170.33.40.137, 170.33.73.27 and 170.33.80.11.

1course.cn is handled by three mail servers: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

1course.cn shares at least partially some mail servers with other domains, for instance cctv-ax.com, iaskgene.com, iposport.com, yinqingli.com and antbank.hk.

these mail servers are often used together with mxn.mxhichina.com, mxw.mxhichina.com, mxbiz1.qq.com and mxbiz2.qq.com.

Host names with two IP numbers:

mx3.qiye.aliyun.com points to 47.246.136.231 and 47.246.137.47.

Host names with one IP number:

mx1.qiye.aliyun.com points to 47.246.137.47.

mx2.qiye.aliyun.com points to 47.246.136.231.

Host names that point to 47.246.136.231: mx3.qiye.aliyun.com and mx2.qiye.aliyun.com.

Host names that point to 47.246.137.47: mx3.qiye.aliyun.com and mx1.qiye.aliyun.com.

dbq