SEO optimization tips on how to optimize a picture in a Web page

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Image SEO is one of the most important parts of web search engine optimization. Search engine optimization on the site's images/seo not only bring more traffic to the site, but also bring a better user experience to visitors. This article summarizes 16 techniques that need attention in picture optimization.

1. In the Picture alt label (replace text) to add keywords, this is the most important picture seo.

2. The standard picture embedding code should contain 5 key tags: src, width, height, alt, and title. Alternate text (ALT) is intended to provide a text description for browsers who cannot see the images in your document. Title is a description of the picture and additional supplements, if you need to pass the picture when the mouse text prompts should use the attribute title. The General Alt label is the key.

3. Give your picture a descriptive file name that contains your target keyword. If you have a picture of a cute parrot, then you should use a descriptive file name like parrot.jpg instead of using t123.jpg, which is just a code name, and, of course, you can make the picture's file name the same as or consistent with the contents of the ALT tag. Do not casually use such a name pic1234.jpg, but should use the description of a clearer name cute-parrot.jpg.

4. Pictures and the content of the Web page must be relevant: browsing pictures is not the first thing visitors visit the page, but will allow visitors to stay on the page longer. (According to eye-tracking research, text takes precedence over images when viewed, but when you look at a printed article, people look at the pictures first.) Although people look at the pages of the page will first read the text, but the pictures will allow them to stay longer and have a more profound impression on the page.

5. Add relevant information around the picture. If you use Google to search for images, it's not hard to see that there is a descriptive text in each picture, with keywords in bold. Google Image search determines the content of a picture by analyzing the text, the caption, and many other elements that are near the picture on the page. So adding descriptive information around the image that contains keywords will optimize the site's image rankings in search engines.

6. Links to pictures include keywords.

Use a hyperlink to open a picture, then the name of the hyperlink should contain the keyword of the picture, such as you want to link a lovely parrot picture, it is not appropriate to use the "click to get full size" and other link text, but should try to use such as "cute parrot" such as the name form.

7. Use tag to label the picture. When using a picture storage service like Flickr, it's best to add tag to the picture.

8. Make sure the images can be crawled by search engines. Set the robots.txt file of the website to ensure that the image files can be crawled by spiders. Remember not to use JavaScript to link picture files. If you do that, search engines can't retrieve your picture documents.

9. There is no need to optimize all the pictures on your site. For example, the pictures used in the template, navigation pictures and background pictures, etc., we do not have to add ALT tags for these pictures, we can put these pictures in a separate folder. And by setting the robots.txt file to prevent spiders from crawling these pictures.

You can set all the spiders that are blocked from crawling these pictures:

User: *

Disallow:/images

Or you can just block Google image search spiders crawl:

User-agent:googlebot-image

Disallow:/images

10. Avoid duplicate pictures. For example, a picture on your site has three forms: a smaller size picture, a medium sized picture, and a larger size picture. Well, don't let these three images be indexed. The best way to deal with this situation is to use the robots.txt file to tell the spider not to crawl the version of the picture you don't want to be indexed.

11. The number of pictures per page is as low as possible.

12. Note the size of the picture to adapt to the search engine, such as your link is a wallpaper, then the size of the wallpaper should conform to the specification. Because Google, Baidu and other image search provides according to the size of the image to search.

13. Always update pictures. If your picture hasn't changed for a long time (picture size, picture file size, picture location, picture name, etc.), its rankings may be lowered because the search engine will suspect that the image content is outdated.

14. Use the Google Webmaster enhanced image search function. With enhanced image search enabled, Google will use tools such as Google Image Labeler to associate the images that your site contains with labels to optimize the indexing of these images and improve search quality.

15. Image theft is a difficult problem to avoid. We can add some text to each picture, such as "Photo by www.idcquan.com", "Image by Www.idcquan.com" and so on. While it's not entirely foolproof, it takes time for someone else to use your picture to edit it.

16. Check the image indexed by search engine pictures. In order to check the success of the site image optimization method, it is necessary to monitor the search engine on the site image collection rate. The method is to enter the http://images.google.cn/search bar (replace the www.idcquan.com with the domain name you want to query). Other search engines have this feature.