Ten details of website optimization

1. Differences between Baidu site results. Site: www.xxx.com and site: xxx.com are not the same. The latter is more extensive. Besides the former, it also contains second-level domain names such as site: bbs.xxx.com, in addition, the site is only an estimate.

2. Advantages and disadvantages of nofollow labels. This label does not seem to be valued by many people, but it is very dangerous. The purpose of this tag is to tell the search engine to give up voting on the link to this tag. You can add this tag to the link within your site, such as the website announcement on the homepage, copyright notice and other websites that do not have weight at all, to prevent distribution of site weights. However, if this tag is added to a link, the search engine is told to give up the weight of the link! If you use external nofollow in a more professional way, the crawler will skip this link completely. For friendship links, pay special attention to the sites with the nofollow tag set.

3. Control the loss of the site master corn PR.

Www.xxx.com

Xxx.com/

Www. xxx. om/index. php tutorial

Xxx.com/index.php

These four links are different URLs in the search engine. To prevent unnecessary PR loss, you can use 301 redirection to redirect www. xxx. om/index. php

Www.xxx.com is similar to the expected master corn. The 301 redirection method can be searched online.

4. set the website 404 page. When a user browses an incorrect address, a 404 status code is returned, asking the search engine to discard the index of the link, avoid duplicate indexing of these wrong links by search engines, especially when your site traffic is high.

5. PR is not a key factor affecting Baidu rankings. Many people think that the ranking of a station is directly linked to PR, which is actually very one-sided. PR is mainly determined by external links of the website. The most important factor in Baidu ranking is the original addition of external links. When Baidu ranking of a website is good, it indicates that the website must have high-quality import links, these links also increase the PR of the website, which leads to a misunderstanding of the ranking of websites with a high PR value. Just like this site, there is no PR for SEO in Wuhan, but multiple keywords are Baidu homepage.

6. The status code in the website log. As a SEOER, you should pay more attention to the website logs on your site. It can help you analyze how many times a spider robot accesses the website and what pages it accesses, and the HTTP status code returned when accessing the page. For the HTTP status code, only three of the most common ones are described here.

200-the request is successful, and the desired response header or data body will be returned with this response.

404-request failed. The requested resource is not found on the server.

503-the server cannot process requests because of temporary server maintenance or overload.

7. Baidu's reverse link is not all the import links on your site. Domain or directly enter your domain name in Baidu to check the reverse link. It is not the import link of your website. Baidu only processes the URL you are querying as a keyword (some are also the import links ), it has the same effect as search for Wuhan SEO on Baidu. Yahoo and Google are commands for querying reverse links, but they are not accurate. They cannot be measured by Baidu ranking standards. They are measured by YOHOO or Google's number of external links, it is ridiculous to judge Baidu's ranking.

8. FLASH cannot be optimized. This is a one-sided statement. The search engine is not easy to index Flash files, but not non-index files. There is a big difference between not easy and not. I once found that Baidu contains more than words on the page. Naturally, the top two are pure Flash sites, the most typical practice is to embed an HTML file in the Flash animation tutorial. The overall effect of a web page is the same. As for how to set keywords in HTML, you have to find out on your own.

9. About the role of alexa. The Alexa ranking is based on the Alexa Tools browser installed for users to monitor their website access data for statistics. In short, it is a random extraction, which is very inaccurate and has no substantial impact on the rankings of websites, because at present, it is very easy to rank Alexa. Of course, you must pay attention to some large websites or network companies, because Alexa, after all, represents the authority of website evaluation, and you do not need to care too much about personal webmasters or small business websites.

10. SEO aims at online marketing or online promotion to maximize the benefits of the website. SEO is not only restricted to the ranking of search engines, but should also be understood as a marketing model. What if you make the keywords the first page? Can you tell me that your website is the best in this industry? Can you prove that your marketing strategy is the best? The marketing effect of a 100IP website is the same as that of your own IP address. Do you dare to say that your SEO technology is amazing?