Seo optimization is both slow work and fine work. The details are well done, such as fish and water. All Seo optimizations know that the search engine understands images through the alt attribute. Therefore, the brief text description containing keywords is used in the image alt attribute, which is also part of page optimization. If you want to do better, you can further explain the image in the title attribute. The SEO Optimization of related knowledge points is detailed in the article "image optimization method | Baidu image optimization. Today, Seo optimization will share with you the IMG label ALT and title attribute Evaluation experiment.
Image IMG label ALT and title attribute Evaluation experiment code
Note: replace <> with <>
<HTML>
<Body>
<P> </P>
<P> </P>
<P> </P>
<P> </P>
<P> </P>
<P> </P>
</Body>
</Html>
Image IMG label ALT and title attribute Evaluation experiment results
Image address error. The image size is not limited
I. images only have ALT attributes
1. In the IE 6 browser, the image Displays the cross and ALT text. move the cursor over the image with ALT text;
2. In the 360 browser version 5.1 (IE8 kernel), the image Displays the cross and ALT text, and the alt text is displayed above the picture;
3. The ALT text is displayed in Firefox 12.0 browser images,Move the mouse over the image without alt text;
2. images only have the title attribute.
1. in IE 6 browser, the image is displayed and the title text is displayed on top of the image;
2. In the 360 browser 5.1 test version (IE8 kernel), the image is displayed as a cross, and the title text is displayed above the image;
3. the Firefox 12.0 browser displays the damaged image logo, and the title text is displayed above the picture;
3. The image has ALT and title attributes.
1. The title text is displayed in the IE 6 browser, with the cursor over the image;
2. In the 360 browser version 5.1 (IE8 kernel), the image Displays the title text and the alt text. move the cursor over the image;
3. the Firefox 12.0 browser displays the alt text and the title text is displayed above the image;
The image address is normal and the image size is limited
I. images only have ALT attributes
1. The image displayed in the IE 6 browser is normal. The ALT text is displayed when you move the cursor over the image;
2. Images in the 360 browser 5.1 beta version (IE8 kernel) are displayed normally, and ALT text is displayed over the picture;
3. Firefox 12.0 displays images normally, and no alt text is displayed when you move the cursor over the image;
2. images only have the title attribute.
1. The image displayed in the IE 6 browser is normal. The title text is displayed when you move the cursor over the image;
2. The image displayed in the 360 browser 5.1 beta version (IE8 kernel) is normal, and the title text is displayed above the picture;
3. the Firefox 12.0 browser displays images normally, and the title text is displayed above the image;
3. The image has ALT and title attributes.
1. The image displayed in the IE 6 browser is normal. The title text is displayed when you move the cursor over the image;
2. The image displayed in the 360 browser 5.1 beta version (IE8 kernel) is normal, and the title text is displayed above the picture;
3. the Firefox 12.0 browser displays images normally, and the title text is displayed above the image;
Seo optimization summary image IMG label ALT and title attribute Evaluation Experiment
ALT and title are both suggestive language labels, and there are differences between them. ALT is the alternative text when the image does not exist; title is the description and further description of the image; when using the 360 browser 5.1 test version (IE8 kernel), only the image with the alt attribute is not displayed, however, the testing process shows that this is confusing Seo optimization. If you have any questions, please kindly advise. Thank you. However, the alt attribute of Firefox 12.0 is not displayed, and only the title attribute is displayed. in IE6, the title and ALT values are displayed when you move the mouse over the image. If both the alt and title attributes exist, the title value is displayed.
Seo extension supplement: ALT attributes are generally used for image prompts, and title can also be used for text or link text prompts.
The following code is generally used:
<HTML>
<Body>
<P> <title = "prompt for common text"> text </P>
<A href = "http: // www. **. org/" Title = "link text prompt"> text </a>
</Body>
</Html>
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