First, the website is not gorgeous, practical

There are many web designers who are used to making a lot of pictures and FLASH when designing websites. They don't know that there are many drawbacks. First, too many pictures affect the opening speed of the website. Secondly, search. The engine can't recognize pictures and FLASH at all, so even if our content is good, it can't let spiders crawl and crawl. So for this situation, it is recommended to use some tools to simulate spider crawling to detect your website and see if it is because of this situation that spiders do not visit our website. Of course, if the website is used to do Baidu promotion, you can ignore this problem.

Second, the website must pay attention to the dead chain 404 page is very important

The dead chain usually appears after deleting the product page or news page, causing its original link to become a dead chain. If the spider crawls your website, there are a lot of dead chains, which is quite unfriendly. If there are more dead chains, it will directly cause the spider to stop crawling your website content. There are two ways to solve the dead chain. One is to use robots.txt to block or use 301 relocation, but if you have a lot of content on your website, you can't use the robots.txt file to block, you can only use 301 relocation. Another method, which is the 404 error page we commonly use, uses this method, even if there is a dead chain, 404 boot, you can let the spider crawl other content. At the same time, this is also relevant to the user experience, so as not to cause a large amount of customer loss to traffic. Of course, the above two methods are technically speaking. If you don't really do 301 redirects or 404 error pages, then you only have to update the website content and slowly attract the spiders to delete the old ones. Content, in order to achieve the purpose of including new pages.

Third, the nofollow tag is used correctly

As everyone knows, the nofollow tag is used to pass weights. The role and weight of each page of the same website are different. Usually, the home page has the highest weight. So when we are doing the outer chain, we usually link to the home page. But like pages like online messages that don't do any good for website optimization, we can add the nofollow tag so that the weight of the entire site will not be passed to this useless page. Moreover, spider crawling sites are limited in time. Is it better to leave the crawling plus nofollow tab page for a more useful page?