Influence of div layout and table layout on SEO

A few days ago, I made websites for customers. I saw that their official websites are all table layouts. I did use table when I first learned professional courses. But with the progress of science and technology, the website development language is becoming more and more mature and perfect. This layout has gradually "died down", but I don't know why, There are still many official websites using table layout. Today, let's briefly talk about "the impact of div layout and table layout on SEO"

When div+css suddenly appeared in the web design industry, both the official and the folk praised it highly. It seemed that the era of table design was about to end and the era of div+css was about to enter. If you didn't know div+css, you would be ashamed to say that you could design web pages. If you didn't know div+css, you would be ashamed to say that you were a webmaster. You would still use table to design websites, The light of innumerable disdain is projected.

With the div+css layout, the page code is relatively simple. The direct benefits of code reduction are two:

First, standardized page structure:

It is conducive to unified design management and can be well supported by search engines.

Second, due to efficient crawling, it will be welcomed by Spider,

Improve Spider crawling efficiency, and can crawl complete pages in the shortest time, which is very beneficial to the number of included pages.

On the other hand, the real SEOer is not just for the purpose of listing and ranking. Rapid response speed is the basis for improving user experience, which is very beneficial to the entire search engine optimization and marketing.

The reasonable point of DIV+CSS is that it can carry out the unified design management of web pages. Through a style sheet, it can lead to the whole body. As long as the style sheet is modified, it can unify the style of the whole site. If a style sheet is made for a page alone, or a style sheet is made for a div, and there is no global design concept, then the design method of div+CSS is completely unnecessary, Even become a burden;

Like table, it uses div+css to nest endlessly. Its effect is the same as that of table design. It will not bring about the optimization effect of the search engine, but will increase the burden of the page;

The design of table has a long history and is widely supported by browsers, so the display effect is very good and there is no dislocation. However, div+css can cause page dislocation in some browsers. For example, different IE versions support different codes, which requires a lot of compatibility. Therefore, when designing, you should also consider the situation of different browsers, and make changes and debugging.

With table layout, multiple tables have to be applied to achieve certain visual effects. If the nested table is the core content, and the Spider skips this section when crawling but does not grab the core of the page, this page will become a similar page. Too many similar pages in the website will affect the ranking and domain name trust.

This is only for website building. The situation depends on the developer's technology. But for search engines, div+css can be more optimized for crawling and inclusion. Oh, yes, and the most important thing:

The layout of DIVCSS based on XTHML standard will generally be improved as far as possible after the design is completed to pass the W3C verification. Up to now, no search engine has indicated that the ranking rules will tend to be websites or pages conforming to W3C standards, but the fact has proved that websites using XTHML architecture generally rank well. This may be controversial, but from my point of view, it is very useful.

This may not be the ranking rule, but the most likely situation is spider crawling websites. The above differences lead to different collection quality. It is suggested that friends who are building a website or modifying a version should choose the div+css layout when the technology is licensed.