replica oakley sunglasses SEO advice url canonical

by Matt Cutts on January 4, 2006
Q: So when you say www vs. non-www,oakley sunglasses, you're talking about a type of canonicalization. Are there other ways that urls get canonicalized?
A: Yes, there can be a lot, but most people never notice (or need to notice) them. Search engines can do things like keeping or removing trailing slashes, trying to convert urls with upper case to lower case, or removing session IDs from bulletin board or other software (many bulletin board software packages will work fine if you omit the session ID).
Q: Let's talk about the inurl: operator. Why does everyone think that if inurl: mydomain.com shows results that aren't from mydomain.com, it must be hijacked?
A: Many months ago, if you saw someresult.com/search2.php? url = mydomain.com,SEO, Search Engine Optimization - Learn 1SEOExperts.com, that would sometimes have content from mydomain. That could happen when the someresult.com url was a 302 redirect to mydomain.com and we decided to show a result from someresult.com. Since then, we've cheap oakley sunglasses changed our heuristics to make showing the source url for 302 redirects much more rare. We are moving to a framework for handling redirects in which we will almost always show the destination url. Yahoo handles 302 redirects by usually showing the destination url, and we are in the middle of transitioning to a similar set of heuristics. Note that Yahoo reserves the right to have exceptions on redirect handling, and Google does too. Based on our analysis,ray ban sunglasses SEO Company India SEO Services, we will show the source url for a 302 redirect less than half a percent of the time (basically, when we have strong reason to think the source url is correct).
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That's about all I can think of for now. I'll try to talk about some examples of 302's and inurl: soon,replica oakley sunglasses No.1 Singapore SEO Consu, to help make some of this more concrete.
Q: I have some pages in the supplemental results that are old now. What should I do ?
A: I wouldn't spend much effort on them. If the pages have moved, I would make sure that there's a 301 redirect to the new location of pages. If the pages are truly gone, I'd make sure that you serve a 404 on those pages. After that,ray ban sunglasses, I wouldn't put any more effort in. When Google eventually recrawls those pages, it will pick up the changes,oakley sunglasses on sale, but because it can take longer for us to crawl supplemental results, you might not see that update for a while.
Q: I noticed that you don't do a 301 redirect on your site from the non-www to the www version, Matt. Why not? Are you stupid in the head?
A: Actually,oakley sunglasses cheap, it's on purpose. I noticed that several months ago but decided not to change it on my end or ask anyone at Google to fix it. I may add a 301 eventually, but for now it's a helpful test case.
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Matt Cutts: Gadgets, Google, and SEO
www.example.comexample.com / www.example.com / index.htmlexample.com / home.asp
Q: Is there anything else I can do?
A: Yes. Suppose you want your default url to be http://www.example.com/. You can make your webserver replica oakley sunglasses so that if someone requests http://example.com/, it does a 301 (permanent) redirect to http://www.example.com/. That helps Google know which url you prefer to be canonical. Adding a 301 redirect can be an especially good idea if your site changes often (eg dynamic content, a blog, etc. ).
SEO advice: url canonicalization
Q : Okay,oakley sunglasses cheap, how about supplemental results. Do supplemental results cause a penalty in Google?
A: Nope.
But technically all of these urls are different. A web server could return completely different content for all the urls above . When Google br> A: One thing that helps is to pick the url that you want and use that url consistently across your entire site. For example, don't make half of your links go to http://example.com/ and the other half go to http://www.example.com/. Instead, pick the url you prefer and always use that format for your internal links.
Q: If I want to get rid of domain.com but keep www.domain.com, should I use the url removal tool to remove domain.com?
A: No, definitely don't do this. If you remove one of the www vs. non-www hostnames, it can end up removing your whole domain for six months. Definitely don't do this. If you did use the url removal tool to remove your entire domain when you actually only wanted to remove the www or non-www version of your domain, do a reinclusion request and mention that you removed your entire domain by accident using the url removal tool and that you'd like it reincluded.
Before I start collecting feedback on the Bigdaddy data center,oakley polarized sunglasses, I want to talk a little bit about canonicalization,ray ban sunglasses, www vs. non-www, redirects, duplicate urls,oakley sunglasses discount, 302 hijacking, it's a strange word; that's what we call it around Google. Canonicalization is the process of picking the best url when there are several choices,cheapest oakley sunglasses, and it usually refers to home pages. For example, most people would consider these the same urls: