mooc websites

content of the webpage to a large extent. In fact, the above two items cannot be ignored when optimizing other search engines, except Yahoo! Give it a higher weight. 　　 Keyword densityBecause the search engine algorithms are always being adjusted, it is unrealistic to give specific keyword density. Moreover, the keyword density is not a perfect number, in many cases, the optimal keyword density varies with different website types in the industry. Therefore, the feasible method is to analyze th

In order to fully demonstrate the design level of their team, design studios and design companies will do their utmost to design their own websites and present the best design works. The exquisite websites shared below are excellent website design studios and portfolio presentation websites that are collected and enjoyed together.You may also like 30 beautiful

The core principle of high-concurrency access is to put forward all user access requests as far as possible ". Talking about the architecture of high-performance and high-concurrency websites with tens of millions of PVS/IP addresses The core principle of high-concurrency access is to put forward all user access requests as far as possible ". If we compare the visiting users to the "enemies" of the criminals, we must block them out of 800 miles, that

Zhengzuo 2006-3-1 because I use the RSS aggregate software (RSS bandit) to view the information of those websites that provide the RSS service, it is much more convenient and saves a lot of time, however, for a long time, it has been found that some RSS files generated by websites often have problems, leading to the failure of client software resolution. Here, I want to list several

What is the framework used to develop such websites? What is the framework used to develop such websites? Do websites like jackcity.cn use cakephp and codeigniter frameworks? I still use bbs such as wordpress, drupal, dedecms, or discuz. could you tell me what framework is used to develop such websites? What is the fr

You can use a URL to capture the TITLE of a web page. if some websites cannot find the TITLE, the method is stupid. At the end of this post, the code edited by u016911 from 2013-11-0411: 25: 29 was written by myself. I don't know if there are any better methods. Please give me some tips. some websites can be caught, such as Baidu and some websites. for example, P

Why can so many websites share port 80 on the IIS server? doesn't it mean that only one website can use port 80 on one machine, but I found on this server that, A lot of websites share port 80. do you understand that a service process uses port 80 instead of a website? a service process can have N virtual websites, why can so many

Three modes of Internet profitSome commercial-minded people speculate that there is a marriage between men and women. There are so many people in China who cannot earn a dollar from every woman who wants to get married. As a result, a group of people started the professional matchmaker business in the 21st century.People in this industry come from different fields. There are internet companies, mobile value-added businesses, scholars, and people who do not know what to do because of unemployment

I purchased a virtual host with only one database some days before I put tables on two websites. now I want to put data on two or three websites, will this affect the access speed? will it be irrelevant to the number of tables that are stored, but it is related to the number of users who query the database and the query speed. therefore, if many people visit websites