Google has released an article guide SEO image standard Google on the site to assist the webmaster can optimize the images on your website better.
The guide to SEO google standard image on your site. With image search, as well as with the search site, Google’s goal is to provide the best results and the best fit for our users. According to the best practices listed below (as well as normal Administrator Guide our website) will increase the likelihood that your images will be returned in the search results
You can give Google more information about your image, and provide the URL of the image that we can not discover, by adding a Sitemap for website . Add information for site map images.
In image have 2 tags important is title tags (tags description when users hover over the image) and ALT tags (tags description for search engines by keywords contained in it).
+ALT Tags:
Alt attributes are used to describe the contents of an image file. It is important for several reasons:
- It provides useful information to Google about the problem of the image. We use this information to help determine the best image to return to the user’s query.
- Useful for many examples, users with poor eyesight, or people who use screen readers or those with low bandwidth connections may not be able to see images on web pages. Alt text description provides users with important information.
For exampales about ways put ALT tags:
No good:
<img alt=”" /> src=”puppy.jpg”
<img alt=”" /> src=”puppy.jpg”
Better than:
<img alt=”puppy” src=”puppy.jpg” />
<img alt=”puppy” src=”puppy.jpg” />
Best:
<img alt=”Dalmatian puppy play fetch” src=”puppy.jpg” />
<img alt=”Dalmatian puppy play fetch” src=”puppy.jpg” />
Should be avoided
<img alt = “dog puppy pup dog puppy doggies dog litter pups labrador retriever wolfhound setter pointer jack russell terrier dog puppy dog food puppy food cheap dogfood” src = “puppy.jpg” />
<img alt = “dog puppy pup dog puppy doggies dog litter pups labrador retriever wolfhound setter pointer jack russell terrier dog puppy dog food puppy food cheap dogfood” src = “puppy.jpg” />
Filling alt attributes with keywords (“keyword stuffing”) results in a negative user experience, and can cause your site being considered spam. Instead, focus on creating useful, information-rich content, use keywords appropriately and in context. We recommend that you check out your content using a text browser such as Lynx.
So you want a picture on top 1 of Google by the ALT tag is not sufficient?
The following factors decide a ranking of images on Google:
1. Filename contains keyword (iphone-5.jpg, smartphone-in-re.jpg …)
2. ALT tags in images containing keywords need SEO
3. The meta tags of site contains keywords need SEO
5. Title Tags of images containing keywords need SEO
6. The keywords are surrounded by images of other HTML tags
2. ALT tags in images containing keywords need SEO
3. The meta tags of site contains keywords need SEO
5. Title Tags of images containing keywords need SEO
6. The keywords are surrounded by images of other HTML tags
Besides, there are many other important factors such as: the trust of website, PageRank, age domian, index DA and PA, Traffic, SEO Onpage site is good, articles achieve standard SEO ..




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