ICOURSE163.ORG 中国大学MOOC(慕课)_国家精品课程在线学习平台


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Weekly Rank Report

DateRankChange
Apr-26-2024 14,185181
Apr-25-2024 14,3660
Apr-24-2024 14,3660
Apr-23-2024 14,366-25
Apr-22-2024 14,341110
Apr-21-2024 14,45193
Apr-20-2024 14,5440

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icourse163.org Rank History

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icourse163.org whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


Domain Name: ICOURSE163.ORG
Registry Domain ID: D171225930-LROR
Registrar WHOIS Server: whois.pir.org
Registrar URL: http://whois.pir.org/
Updated Date: 2021-01-04T05:53:28Z
Creation Date: 2014-02-25T06:41:39Z
Registry Expiry Date: 2022-02-25T06:41:39Z
Registrar Registration Expiration Date:
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Reseller:
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registrant Organization: bei jing wang yi you dao ji suan ji xi tong you xian gong si
Registrant State/Province: Beijing
Registrant Country: CN
Name Server: NS3.NEASE.NET
Name Server: NS1.NEASE.NET
Name Server: NS2.NEASE.NET
Name Server: NS4.NEASE.NET
Name Server: NS5.NEASE.NET
Name Server: NS6.NEASE.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2021-04-25T12:11:34Z

icourse163.org server information

Servers Location

IP Address
223.252.199.73
Country
China
Region
Guangdong
City
Guangzhou

icourse163.org desktop page speed rank

Last tested: 2019-12-07


Desktop Speed Medium
75/100

icourse163.org Desktop Speed Test Quick Summary


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icourse163.org Desktop Resources

Total Resources25
Number of Hosts12
Static Resources19
JavaScript Resources10

icourse163.org Desktop Resource Breakdown

icourse163.org mobile page speed rank

Last tested: 2019-12-09


Mobile Speed Medium
77/100

icourse163.org Mobile Speed Test Quick Summary


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icourse163.org Mobile Resources

Total Resources17
Number of Hosts9
Static Resources11
JavaScript Resources12

icourse163.org Mobile Resource Breakdown

icourse163.org mobile page usability

Last tested: 2019-12-09


Mobile Usability Good
100/100

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icourse163.org Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


icourse163.org TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.