SEO advice: url canonicalization
This is a post from Matt Cutts…
I want to talk a little bit about canonicalization, www vs. non-www, redirects, duplicate urls, 302 “hijacking,” etc. so that we’re all on the same page.
Q: What is a canonical url? Do you have to use such a weird word, anyway?
A: Sorry that 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, and it usually refers to home pages. For example, most people would consider these the same urls:
• www.example.com
• example.com/
• www.example.com/index.html
• example.com/home.asp
But technically all of these urls are different. A web server could return completely different content for all the urls above. When Google “canonicalizes” a url, we try to pick the url that seems like the best representative from that set.
Q: So how do I make sure that Google picks the url that I want?
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: 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 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 (e.g. dynamic content, a blog, etc.).
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.
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, 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.
Q: So when you say www vs. non-www, 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, 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 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, 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).
Q: Okay, how about supplemental results. Do supplemental results cause a penalty in Google?
A: Nope.
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, I wouldn’t put any more effort in. When Google eventually recrawls those pages, it will pick up the changes, but because it can take longer for us to crawl supplemental results, you might not see that update for a while.
Saturday, September 4, 2010
SEO advice: url canonicalization
Thursday, October 15, 2009
Why the importance & popularity of Search Engine Optimization is increasing?
Today, a company needs a website to add validity and credibility! If your company has a website, but the site is not optimized for maximum exposure from the search engines, you could be missing out on well over 85% of your potential website traffic. Obviously, achieving High Search Engine Positioning for targeted keyword phrases is a vital part to improving your website conversions and increasing your audience.
Search Engine Optimization (SEO) is the art of optimizing your web pages so it is ranked highly by search engines like Google, Yahoo &
SEO is a process which is used for improving or increasing the volume of traffic to a website through the normal searching process. The main objective of SEO is to help a website come up on the search list of search engines. This not only gives you the obvious advantage of being seen first but those on the front page are typically seen as the market leaders.
Many organizations wonder if they need SEO for their website! Many people think that once a site goes on-line, the work is over. But in reality, that's when the work begins.
Each day over one hundred and fifty thousand new websites are made. But do these web sites get visitors? No. If you want your site to be found among many million web sites on the internet, you must optimize it, make it readable to search engines by creating it with information the search engine robots understands. If search engines don’t recognize the web page and web site, the potential customers including corporate clients are not likely to find the web site as it will not come in the top search results.
Having a properly optimized website plays a significant role in achieving high search engine rankings in all major search engines!
What you Gain with SEO?
1. Increasing the website’s visibility & popularity in search engines – Appear in search engine results page more frequently for site related keyword phrases.
2. The website will rank top in major search results for site related keyword phrases
3. With SEO the website will gain qualified & targeted traffic
4. Appearance of the website at the top of search results will increase number of qualified visitors to the site
5. With SEO the advertising cost will get reduced gradually
6. With SEO online competition can be reduced
We at Global Media Insight firmly believe that a comprehensive, ROI-centric Internet marketing strategy is your perfect "survival tool" in the current economic environment. All of our SEO techniques have been tested and proven effective; we only use ethical (White-Hat) methods and practices. If you would like to discuss more of our strategy on how we can increase your customers/clients… Drop a line…
Monday, May 12, 2008
Importance of SEO and High Rankings | SEO Dubai | SEO UAE | SEO Services Middle East
Importance of SEO and High Rankings
A high ranking in the most popular search engines is the dream of every business owner. After all, without a steady flow of visitors to your website, how are you going to earn your fortune? If nobody sees your website, then nobody is going to know what you have to offer.
It's just like a store down town. The ones on the busiest streets get the most business. The mom and pop operation stuck away in a corner someplace, or down an untraveled road gets very little business, because it isn't seen by many. They usually get just enough customers to eek out a living. And for some that's all they want to do, and that's fine. To each his own. But if you want to make a fortune (which is what most entrepreneurs want to do) then you have to get on a busy street.Take yourself as an example. When you do a search from your favorite search engine, how far out of the way do you really go to find what you are looking for? Or in other words, how many pages will you scroll through to find the website that has the information you are looking for? Believe it or not, the majority of people don't go beyond page two. And I am one of the majorities. If I ever do go past page two, then I am just scrolling haphazardly, waiting for something to jump out and catch my eye.
First two pages one on the other hand, is a different story. I scroll slowly, reading carefully, and almost always click on the top ten beginning at number one. And if I find what I am looking for on the third one down, that is usually as far as I go. And it's that way for most people. So you can see why a high ranking, especially the number one position, is the most coveted place to be on the internet.
A high ranking in search engines like Google, Yahoo & MSN is better than any other method of advertising. Statistics have repeatedly shown that up to 80% of your visitors will find your web site via the search engines.
Although most want to get a top position, not everyone will put in the needed effort to get there. And that gives us an advantage. Even though our competition is in the millions, or so it seems, it really isn't that competitive.
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