在研究 科罗拉多城市大学的时候还有一些有趣的发现
他有在用几个域名:
coloradoccu-edu.uscoloradoccu.edu.vncoloradoccu-edu.com1. 首先所有的网站都没有启用 https
2. 上述的几个域名解析情况,没有发现使用 CDN
```
47.254.91.241 (
coloradoccu-edu.us )
美国 加利福尼亚州 圣克拉拉 阿里云
========================
47.254.91.241 (
coloradoccu.edu.vn )
美国 加利福尼亚州 圣克拉拉 阿里云
========================
47.254.91.241 (
coloradoccu-edu.com )
美国 加利福尼亚州 圣克拉拉 阿里云
========================
```
3. Whois 查询
```
Domain Name:
coloradoccu-edu.usRegistry Domain ID: DA931852F0B54420795C59B725C0E9C98-GDREG
Registrar WHOIS Server:
www.1198.cnRegistrar URL:
www.1198.cnUpdated Date: 2022-02-19T06:15:13Z
Creation Date: 2022-02-14T06:15:13Z
Registry Expiry Date: 2023-02-14T06:15:13Z
Registrar: Topnets Group Limited
Tech Email: ccu@coloradoccu.edu.vn
```
```
domain:
coloradoccu.edu.vnstatus: taken
nameserver:
ns1.icp100.netnameserver:
ns2.icp100.net```
```
Domain Name:
coloradoccu-edu.com Registry Domain ID: 2237390692_DOMAIN_COM-VRSN
Registrar WHOIS Server:
whois.diymysite.comRegistrar URL:
www.diymysite.comUpdated Date: 2021-12-20T03:32:30.0Z
Creation Date: 2021-12-20T03:32:30.0Z
Registrar Registration Expiration Date: 2024-12-20T03:32:30.0Z
Registrar: Cloud Yuqu LLC
Registrar IANA ID: 3824
Reseller:
Domain Status: ok
http://www.icann.org/epp#okRegistry Registrant ID: Not Available From Registry
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Jiang Su
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: CN
```