Html web page head area specification knowledge

The head area refers to the content between and of the homepage HTML code.
Required tags
1. Company copyright annotation

2. Web page display character set
Simplified Chinese:
Traditional Chinese:
English ：
3. Web page author information

4. Website introduction

5. Search keywords

2. Prevent the browser from accessing page content from the local machine's cache.

3. Used to prevent others from calling your page in the frame.

4. Automatically jump.

5 means the time stays for 5 seconds.
5. Web search robot wizard. Used to tell the search robot which pages need to be indexed and which pages do not need to be indexed.

CONTENT parameters include all, none, index, noindex, follow, nofollow. The default is all.
6. Favorite icon

All javascript calls should be made from external calls as much as possible.

Attached tag:
tag does not belong to the head area. It is emphasized here that in order to ensure browser compatibility, the page background must be set

The above is the content of the standard knowledge of the head area of ​​Html web pages. For more related articles, please pay attention to the PHP Chinese website (www.php.cn)!