52opencourse / 我爱公开课

Robots.txt Information

Robot	Path	Permission
GoogleBot	/	✔
BingBot	/	✔
BaiduSpider	/	✔
YandexBot	/	✔

Meta Tags

Title	我爱公开课
Description	为中国学生提供一个开放、免费、高质量以及世界级的公开课中文分享与交流平台。
Keywords	N/A

Server Information

WebSite	www.52opencourse.com
Host IP	47.52.131.151
Location	Hong Kong

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52opencourse.com Valuation

US$2,494

Last updated: Dec 17, 2019

52opencourse.com has global traffic rank of 20,132,600. 52opencourse.com has an estimated worth of US$ 2,494, based on its estimated Ads revenue. 52opencourse.com receives approximately 151 unique visitors each day. Its web server is located in Hong Kong, with IP address 47.52.131.151. According to SiteAdvisor, 52opencourse.com is safe to visit.

Traffic & Worth Estimates

Purchase/Sale Value	US$2,494
Daily Ads Revenue	US$1
Monthly Ads Revenue	US$41
Yearly Ads Revenue	US$498
Daily Unique Visitors	151
Note: All traffic and earnings values are estimates.

Traffic Ranks

Global Rank	20,132,600
Delta (90 Days)	0
Most Popular In Country	N/A
Country Rank	N/A

DNS Records

Host	Type	TTL	Data
52opencourse.com	A	599	IP: 47.52.131.151
52opencourse.com	NS	21599	Target: f1g1ns1.dnspod.net.
52opencourse.com	NS	21599	Target: f1g1ns2.dnspod.net.
52opencourse.com	SOA	599	MNAME: f1g1ns1.dnspod.net. RNAME: freednsadmin.dnspod.com. Serial: 1550049574 Refresh: 3600 Retry: 180 Expire: 1209600 Minimum TTL: 180

HTTP Headers

HTTP/1.1 200 OK
Server: nginx
Date: Tue, 17 Dec 2019 07:08:23 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
X-Powered-By: PHP/5.6.31
Set-Cookie: PHPSESSID=91em9g2oghqf4gshjhtt9t8926; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding

52opencourse.com Whois Information

   Domain Name: 52OPENCOURSE.COM
   Registry Domain ID: 1712082999_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.godaddy.com
   Registrar URL: http://www.godaddy.com
   Updated Date: 2018-03-29T03:15:14Z
   Creation Date: 2012-04-08T15:25:40Z
   Registry Expiry Date: 2020-04-08T15:25:40Z
   Registrar: GoDaddy.com, LLC
   Registrar IANA ID: 146
   Registrar Abuse Contact Email: abuse@godaddy.com
   Registrar Abuse Contact Phone: 480-624-2505
   Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
   Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
   Name Server: F1G1NS1.DNSPOD.NET
   Name Server: F1G1NS2.DNSPOD.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/

Domain Name: 52OPENCOURSE.COM
Registry Domain ID: 1712082999_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2018-03-29T03:15:13Z
Creation Date: 2012-04-08T15:25:40Z
Registrar Registration Expiration Date: 2020-04-08T15:25:40Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited http://www.icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited http://www.icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited http://www.icann.org/epp#clientDeleteProhibited
Registrant Organization: 
Registrant State/Province: Bei Jing
Registrant Country: CN
Registrant Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=52OPENCOURSE.COM
Admin Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=52OPENCOURSE.COM
Tech Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=52OPENCOURSE.COM
Name Server: F1G1NS1.DNSPOD.NET
Name Server: F1G1NS2.DNSPOD.NET
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/

52opencourse.com valuation and analysis