Does using spaces in a URL affect SEO?
Spaces in URLs are bad for two reasons: 1) when you copy the URL, it may have an ugly %20 in it to represent the space; 2) on older browsers, copying the URL may leave a space in the URL, so when pasting the link into another webpage like a forum post, the URL will become broken like this:
example.com/my cool page
The only part that will get hyperlinked is:
example.com/my
That will cause a 404 error on your site, and not give you the SEO link juice.
Dashes are best:
example.com/my-cool-page
Yes don't use +
symbols in your URL's it's much better to use -
as -
tells google these are separate words. And -
are most common form of SEO friendly URL's