How to check manually if my website is spam or not?
 

How to check manually if my website is spam or not?If spam means what is the next procedure to fix that spam?

I assume you are referring to your site??
Check the content of your site, the inter linking, meta data and its keyword.
Check the backlinks, if there is unnatural or irrelevant you can disavow these links for it to be removed on your site.

copyscape tool is helps to verify the duplicate content or not.

Every steps important in on page seo like meta tag, H1 to H6 tag, inter linking, robot, google analysis, webmaster, heder and footer, alt tag, image optimization etc

Check back your website content and website backlinks to know more about spam. A high quality unique content with relevant backlinks will help your website to prevent from any search engine penalty.