1. Tag aggregation is conducive to directly obtaining rankings, which is the most widely used on hospital sites.
The medical industry is the industry that uses tags most fiercely. When we search for many keywords, we will always see some medical sites. More importantly, when we open it, we will find that it is just a tag aggregation page, there is no actual content, but the structure is well processed and the page layout is reasonable. Even if there is no content, it still gets a good ranking, it is recommended that users who like to use tags study medical websites. Learn their techniques. This is not the focus of this article.
2. It is conducive to adding internal links and facilitating search engines to capture content.
Speaking of the internal chain structure a long time ago, it is generally regarded as Hexun. However, Hexun uses a variety of lists, related content, recent updates, popular content, and topic hotspots. After the emergence of tags, operators who are keen on the structure of research began to give up the list, and a large number of tags were used to aggregate content and improve the internal chain. In particular, after the concept of web became popular, tag tags gradually became popular and then widely used in various websites. Then, cms vendors adapted to the situation and implanted tags into the system. Of course, for the time being, there are not many webmasters who use the tag carefully. In fact, it improves the internal chain and the search engine's accessibility is still very helpful.
3. Effectively add website columns to serve as topics.
Due to the limited area of the navigation location, some relatively unimportant columns cannot be displayed in many cases. More importantly, the structure of the entire website cannot be too bloated and the overall column size is limited, in this case, the appearance of tags makes up for this situation. Each small tag can be a small topic or a small topic. In addition, there is a possibility of ranking. It is very useful for a wide range of website columns.
4. Clear structure to improve user experience.
Tags should be placed in a conspicuous position. In addition to crawling for search engines, users will also find their favorite content from tags, in some websites, we often see that the colorful tags occupy a large area, the CTR is different, and the font and color of the tags are also different, it even applies Baidu to the Baidu rankings. This method improves the user experience and makes it easier for users to find the content they need.
After talking about the advantages, let's talk about the biggest negative impact it will bring. This is the key content that needs to be elaborated today.
When conducting routine analysis on several websites, we often find that tag pages are captured in large quantities. We have always been positive about it, so we didn't care too much about it. However, it was suddenly found that there was a big problem recently. In the total number of crawlers in a day, the proportion of tags is getting bigger and bigger, exceeding the normal content page and consuming a lot of crawling efficiency, as a result, many content pages are not effectively crawled. This is a headache for the Author. Is the tag canceled or retained? It took a long time to consider.
After careful analysis of the website, we found that such a website, due to the structure, has not many opportunities for obtaining the ranking of tags, while the long tails of a large number of content pages rank well, this makes me very confused, because in my experience, tags have more potential to rank than content pages, and are well verified on other websites. As I continue to observe the logs, the spider is still capturing tag pages. For a while, I thought that I should keep it up and keep it unchanged.
Suddenly one day, after Baidu's big update, we found that all the tag pages were not in the search structure. Once again, let me think about a problem. Since tags are so fragile and consume a lot of spider crawling efficiency, which affects the effective crawling of normal content, why not simply discard this chicken ribs? Put effort into the long tail of more content. After deleting all the tags, the page was adjusted and the tag function was no longer used.
After two or three update cycles, when analyzing logs, it is found that the efficiency of the spider has improved a lot. Basically, all the content pages can be crawled, and the long tail effect is particularly prominent, traffic doubled. In a sense, discarding tags is the same as the flexible use of nofollow, which is used to improve the efficiency of crawlers. In fact, some small details are slightly modified, which greatly improves the overall quality of seo. The details determine success or failure.