For spiders, website maps are a comprehensive understanding of search engines Website production A good tool. A website map is like a roster. A good website map can allow spiders to visit any page of the website in a very directional way. Therefore, it is necessary to be cautious when making a website map

The main purpose of this is to analyze the situation of spider crawling websites. Many webmasters have the habit of checking website logs. Of course, most webmasters just simply understand the number of spiders crawling that day, which is enough to find problems. Sometimes, they feel that their website has been quite perfect, but in the normal optimization process, spiders are not interested in this, which makes people worried.

The only clue that search engines can use spiders to search for "prey" in the big web of the Internet is that after finding new links, the solution principle is easy to understand. The website is finally ranked according to the complex algorithm and stored in the database. Many websites may lose the opportunity for spiders to visit due to the confusion of website structure. However, there are many reasons why spiders do not visit websites. Let me sum up:

Too many pictures, flash, etc

The development of search engines has become more intelligent than before. Last year, Googl launched the image search function, which has to be said. It can analyze the color and pixel ratio of the picture to find the source of the picture. However, this technology is quite different for search engines to fully recognize the information in images. Many webmasters do not know how to optimize search engines, or consider the beauty and rich content of websites. They often embed a large number of high-definition images and flash in the pages. Even if your website content is good, spiders cannot know, Now there are many tools to simulate spider crawling on the network. Webmasters with similar situations can query their own website information to see how far the information spiders can find is from what the human eye can see.

Too many dead links on the website

Spiders come to the website happily, you can imagine. I started to search links one by one. I thought I found a lot of good content, but there were a lot of links waiting for her once, twice, or three times. This was the case every time she came. So when she got angry, she would never visit your page again. Most websites had dead links, As long as I can find and clear it in time, there will be no problem. You can also use the powerful xenu to view your website logs. If you find a 404 status code returned, it will be cleared.

The above figure is the interface when xenu is used to scan www.tcie.cn

Outer chain and nofollow

Because there are links to websites on other websites. If you want spiders to visit more frequently, why can spiders successfully find and visit your site. When establishing an external chain, you should consider the weight of the external chain website. The larger the number of entries, the higher the PR value, and the faster the snapshot update, the higher the weight of the website. In addition, some unscrupulous webmasters, when making friendship links, will deliberately set up such an external chain as nofollow, which is useless in the eyes of spiders. If the external chain of your website has this phenomenon, please remove it in time.

Complex website code

Code optimization is very important. The website is under construction. The lengthy code has no meaning to the website, and will also affect the opening speed and the judgment of the search engine spider.

Complex logical structure of the website

In other words, the correct logical structure of a website should be a flat tree structure. Spiders can reach any column page by visiting the home page, and any content page by visiting the column page. This number should be limited to three times (larger websites can have several layers). If there are too many layers of websites and the website weight is not high enough, spiders will not be interested in searching layer by layer. This article was published by Beijing Website Construction Company Shangpin China //ihucc.com/