Importance of meta tags,keyword in URL or alt text and page length for seo to add in website

Importance of meta tags, keyword in URL or alt text and page length for seo

Meta Tags (Ask.Com As An Example)

 Though Meta tags are indexed and considered to be regular text, Ask.com claims it doesn't give them priority over HTML titles and other text. Though you should use meta tags in all your pages, some webmasters claim their doorway pages for Ask.com rank better when they don't use them. If you do use Meta tags, make your description tag no more than 150 characters and your keywords tag no more than 1,024 characters long. Keywords In The URL And File Names It's generally believed that Ask.com gives some weight to keywords in filenames and URL names. If you're creating a file, try to name it with keywords. 

Keywords In The ALT Tags

Ask.com indexes ALT tags, so if you use images on your site, make sure to add them. ALT tags should contain more than the image's description. They should include keywords, especially if the image is at the top of the page. ALT tags are explained later.

Web Page Length

There's been some debate about how long doorway pages for AltaVista

should be. Some webmasters say short pages rank higher, while others

argue that long pages are the way to go. According to AltaVista's help

17

section, it prefers long and informative pages. We've found that pages with

600-900 words are most likely to rank well.

Example of metadata for seo search engines:

Metadata is data about data. ... A simple example of metadata for a document might include a collection of information like the author, file size, the date the document was created, and keywords to describe the document. Metadata for a music file might include the artist's name, the album, and the year it was released.

seo meta is also very popular term.