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Dynamic links are links that are not recognized by reptiles in Web pages. The crawler's link extractor cannot extract all of the links from the Web page, as some may be stored in a particular format such as JavaScript, and the link extractor cannot decode the format. The format of this link directly affects the number of crawler crawling pages. A type of dynamic link is described below.
Links in earlier networks have only one simple format. They must end with "start". The reference mark is optional and can be inserted into the characters, but a crawler only needs to search the page for "
The obstacles to effective traversal include not only JavaScript but also Java and Shockwave. Web designers need to be aware that if they want their site to be accessed by a crawler in a commercial search engine, they must ensure that there are enough "standard" links (that is, HTML links) in the page being designed.
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