How many keywords can include in website content

How many keywords can include in website content.I read somewhere 10 to 13 keywords for 500 words.is it right?please share your opinions and share the resources if any?

You see, there is no one recipe (like that for baking cookies) which if followed to the letter gets you best keyword density...The idea is to use them in such a clever fashion that neither does it hinder readability or dilute the real message (as in the case of keyword stuffing), nor is it a case of under-utilization. You can get your paragraph on a paper and read it aloud to ensure that... it reads naturally where a person isn't going to be annoyed...

To say that 0.2% or 2% or 5% is the 'most appropriate' density is something laughable.

I would recommend you to enter the keywords 3 to 4 percent of the total content of the keywords.

Can do around 5% keyword density, targeting up to maybe 5 primary keywords per page. Don't try to rank everything at the same page, create custom pages with targeted content for each category of keywords. That would make ranking up far easier.

I would recommend you 3 to 5% keywords.

Article submissions or content submission can include at least 2-3 hyperlink texts but depends on the submission site because there are sites which did not allow to include links in the body while others only allowed to put http links instead of hyperlink text for your keyword.

I would like to suggest you to target one to two keywords in each individual page. The keywords should not be repeated in an unnatural way. They should be built naturally into the content.

I would recommend you 3 to 5% keyword density and as per my opnion you can do amax 6% kewyord density.

You need to include limited amount of keywords for an web page. By using this tool you can find the density for an particular keywords http://www.iwebtool.com/keyword_density

In my opinion keyword density should be 4 to 5%.

keyword density should be 2 to 4. 5%, greater than 5% is called keyword stuffing and you will get you penalized.

2%-3% keywords density is most preferable. If you have a articles of 500 words then you can use 10-12 keywords in your article. I think, you have learned a good topics. Carry on.

The thumb rule for keyword stuffing is, it must be 3 to 4 % of total content. You can check the keyword density by using keyword density tool. And what i will recommend, use keyword stemming instead of keyword stuffing.

I recommend to add 3-4% keywords in your website content as if you place more keywords, it will be considered as spam.

informative information share here.

i always say that on one page you should include more than 3 keywords ,please don't include more than that

I think that keyword density should be 3-5% for SEO friendly web page.
Thanks all

Yes, it is fine as long as you are using keywords and variations. But if you want to focus in one keyword only then 3-5% of keyword density is fine.

per page 2 or 3 keyword out of 1 should be primary and 2 should be secondary....