问题
SEO-friendly URLs are all the rage these days. But do they actually have a meaningful impact on a page's ranking in Google and other search engines? If so, why? If not, why not?
(Note that I would absolutely agree that SEO-friendly URLs are nicer to use for human beings. My question is whether they actually make a difference to the ranking algorithms.)
Update: As it turns out, the Google post that endorphine points to here has caused tremendous confusion in the SEO community. For a sampling of the discussion, see here, here, and here. Part of the problem is that the Google post is addressing the worst case where URL rewriting is done poorly and so you'd be better off sticking with a dynamic URL rather than a mangled static "SEO-friendly" URL.
There's no question dynamic URLs can be crawled by Google and can achieve high rankings. Maybe it would be easier to reframe the question more concretely: given 2 otherwise equivalent pages, which will rank higher for the search "do seo friendly urls really affect page ranking"?
A) Do SEO-friendly URLs really affect a page's ranking?
or
B) http://stackoverflow.com?question=505793 (a fake URL for comparison only)
回答1:
I will let google answer to your question:
http://googlewebmastercentral.blogspot.com/2008/09/dynamic-urls-vs-static-urls.html
In the article:
Which can Googlebot read better, static or dynamic URLs? [...]While static URLs might have a slight advantage in terms of clickthrough rates because users can easily read the urls, the decision to use database-driven websites does not imply a significant disadvantage in terms of indexing and ranking. Providing search engines with dynamic URLs should be favored over hiding parameters to make them look static
回答2:
Even if search engines didn't give your pages a better rank, you should still do it for the users. Any benefit for SEO is just icing on your site.
SEOmoz had an article with suggestions for URL best practices along with reasons why each is helpful for usability or search engines.
回答3:
I don't think this question is readily answerable except by anecdotal evidence, since no two pages are "otherwise equivalent" enough to measure in the sense you're asking. Beyond a Google search engineer emerging and divulging the answer, if one exists that's limited to only this property, you're unlikely to get a definitive answer; more likely, you'll get a long stream of most-likelies.
But I do like the suggestion that descriptive URLs improve the user experience; I think that's true with respect to short URLs, definitely (e.g., "/help", or "/ask", etc.). One just has to decide how valuable that benefit is to the project, when weighed against the cost of creating such URL schemes, which can sometimes be pricey; I've had a couple of clients who've spent thousands on exactly this effort, with no measurable effect in search ranking whatever.
回答4:
Keyword frequency and pagerank are really the two main factors in SEO.
It follows, then, that including keywords in your URLs is desirable.
e.g. http://my_site.com/article/keyword is better than http://mysite.com/article/42
回答5:
All else being equal, both pages will achieve the same pagerank. Pagerank is determined by how many people link to you and what their page rank is. So, it does not affect your pagerank.
But it does affect how high you will end up in the search results. In the search index, not only page rank but also keyword relevance matters. If you have the keywords in your url and someone searches for them, then your page will be more relevant and be higher in the search results. Also, when people link to you then the keyword-rich URLs they use to link to you will also improve your relevance.
Don't stare yourself blind at pagerank. It doesn't matter that much. What matters is that you get found by people. Pagerank is only a small (and ever decreasing) part of that.
回答6:
Well, it does affect your ranking or we can say that URL is the most important part of ranking then comes title and h1 and the rest.So make sure your url should contain keywords.
回答7:
when it comes to your website, the whole point of SEO is to optimize every single page element to get the maximum SEO juice out of it and get ranked as highly as possible.your URLs are often the first thing Google and customers will see. They are also the building blocks of an effective site hierarchy, passing equity through your domain and directing users to their desired destinations.We take pains to craft a website that offers engaging, original content that carefully incorporates a selection of targeted SEO keywords. Each design element is carefully analyzed for its effectiveness in acquiring and retaining visitors.URLs have particular structural rules to which they must adhere for the sake of historical IT design choices.And Yes URl Structure Effect seo ranking but here is some tips for Best Practices Of URL Structure For SEO. 1. Keep it Short & Sweet 2. Make it Readable 3. Make Good Use of Keywords 4. Avoid Pointless Duplication 5. Use Hyphens instead of Underscores 6. Eliminate Excess Words 7. Avoid Folder Mania
来源：https://stackoverflow.com/questions/505793/do-seo-friendly-urls-really-affect-a-pages-ranking