Any Case Study of Reversion of Canonicalization?
-
Hi,
Understand that if a Page A is being canonicalized to Page B, most probably Page B's ranking will increase (given their content and structure are all the same).
But when the canonical tags are removed from Page B, Page A's rankings and traffic may recover to the original before it was canonicalized.
The theories seem very true but does anyone have any case studies or direct experiences which proves these theories?
Thanks.
-
Only thing I can think of is Dr Pete's experiment - http://www.seomoz.org/blog/catastrophic-canonicalization - but that's not quite the same as the example you're proposing.
I think you should still get a good idea of what happens after removing canonical tags though.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Url structure on product pages - Should we apply canonicalized links in breadcrumbs or entry folders
We have products in the that go into mulitiple categories on our e-commerce site. But of course, each product is only canonicalized to one category. My question is: what should the breadcrumbs look like when users access a product from a non-canonicalized/primary category ?Should we apply canonicalized links in breadcrumbs or entry folders? For example: Let´s say we have product called "glacier hiking in the alps". It is in two categories; 1) glacier hiking 2) mountain tours. And is canonicalized to the glacier hiking category. If a user accesses it from the mountain tours category, should the url/breadcrumbs look like this: www.example.com/glacier-hiking/glacier-hiking-in-the-alps (because that is the canonicalized version) Or should it look like like this: www.example.com/mountain-tours/glacier-hiking-in-the-alps (because that is where the user came from) Thanks in advance!
Intermediate & Advanced SEO | | guidetoiceland0 -
IP Canonicalization - Is this needed?
Hi Wondering if we need to worry about IP Canonicalization via htaccess and if this is really required? and does would it have a big impact?
Intermediate & Advanced SEO | | Cocoonfxmedia0 -
Does a URL upper case to lower case rule harm SEO rankings?
Hi Guys, We are working on a website - changing the upper case URLs to lower case. The developer looked at a 301 solution but is having issues with this. Instead, they have come back with the following piece of code <rule name="lowercaserule1" stopprocessing="true"></rule name="lowercaserule1" stopprocessing="true"> <match url="[a-z]" ignorecase="false" ></match url="[a-z]" ignorecase="false" > <action type="redirect" url="{tolower:{url}}" ></action type="redirect" url="{tolower:{url}}" > My question is whether this rule will potentially harm SEO rankings? If someone could help - that would be much appreciated. Thanks, Duncan
Intermediate & Advanced SEO | | CayenneRed890 -
Reversing the bad effects of a problematic 301 redirect
I have a previously very strong ranking page that is now omitted from the SERPs, but only for one specific keyword phrase. I think I found the reason, which I'll explain, and I hope I can hear some confirmation of my theory and a way to correct it. Let's use the following made up domain and keywords: Political blog SiteA.com had a few news articles about "Blue Widgets" (like 10 out of 10,000 pages). They became exceedingly popular, so on SiteA.com we created a reference-type page about "Blue Widgets" and in the news articles we already had about Blue Widgets we added rich anchor text (Blue Widgets) links that pointed to this new About Blue Widgets page. (long before we wised up about keyword rich anchor texts and Google!) After seeing how much traffic was coming to the About Blue Widgets page, we created a whole new site, SiteB.com, which was about Widgets (not just Blue Widgets), a page for each color of widget, and other pages about widgets. SiteB.com has an important and popular page, SiteB.com/blue-widgets, which is about Blue Widgets. We then 301 redirected the SiteA.com's About Blue Widgets page to SiteB.com/blue-widgets. This page in SiteB.com ranked very high (like #2, #3) for years. Two weeks ago SiteB.com/blue-widgets fell out of the SERPs, but only for the phrase "Blue Widgets". The page still gets lots of traffic from other queries, and even the "Blue Widgets" query will bring up other pages on SiteB.com. So, the only thing hit is the specific query "Blue Widgets" for the specific page SiteB.com/blue-widgets. It seems obvious to me that Google took the combination of a) a site that it probably no longer liked since we sold it (SiteA.com) since it's gone downhill, b) the rich keyword anchor text on SiteA.com pages pointing to the SiteA.com page optimized for that keyword, and c) then being 301 Redirected to a SiteB.com Blue Widgets page optimized for that same anchor text. I only discovered the SiteA.com redirects last week, which I had completely forgotten about, and had them removed right away. My question is, 1) if this indeed was the issue, now that the redirects from SiteA.com to SiteB.com are gone will my ranking eventually go back to normal? and 2) is there anything I can do to get Google to notice the change and have it go back to how it was?
Intermediate & Advanced SEO | | bizzer0 -
301's, Mixed-Case URLs, and Site Migration Disaster
Hello Moz Community, After placing trust in a developer to build & migrate our site, the site launched 9 weeks ago and has been one disaster after another. Sadly, after 16 months of development, we are building again, this time we are leveled-up and doing it in-house with our people. I have 1 topic I need advice on, and that is 301s. Here's the deal. The newbie developer used a mixed-case version for our URL structure. So what should have been /example-url became /Example-Url on all URLs. Awesome right? It was a duplicate content nightmare upon launch (among other things). We are re-building now. My question is this, do we bite the bullet for all URLs and 301 them to a proper lower-case URL structure? We've already lost a lot of link equity from 301ing the site the first time around. We were a PR 4 for the last 5 years on our homepage, now we are a PR 3. That is a substantial loss. For our primary keywords, we were on the first page for the big ones, for the last decade. Now, we are just barely cleaving to the second page, and many are 3rd page. I am afraid if we 301 all the URLs again, a 15% reduction in link equity per page is really going to hurt us, again. However, keeping the mixed-case URL structure is also a whammy. Building a brand new site, again, it seems like we should do it correctly and right all the previous wrongs. But on the other hand, another PR demotion and we'll be in line at the soup kitchen. What would you do?
Intermediate & Advanced SEO | | yogitrout10 -
Since when did Google get case sensitive?
We are currently ranked #2 locally (NJ) for "IT support", and #27 for "it support". This is a fairly recent development - like today. I know "it" is a stop word, but I have never seen this before. The funny thing is that this is the only "IT" search where this happens. Most of my keywords contain "IT". What's up with this?
Intermediate & Advanced SEO | | CsmBill0 -
What will the effect of normalising the case of my URLs be?
Hi all, I have a web site with a selection of pages with excellent rankings, mostly in the top 3 for the keywords we want to rank for. Currently, the URLs are mostly presented mixed case, like this: www.mydomain.com/Type/ITEM-IDENTIFIER/ However we have problems of different cases being used in different parts of our application, and also it's obviously not that attractive the way it is. What we are proposing to do is deploy a change to our web site that lowercases all URLs in internal links, as well as present the URLs in lowercase in our sitemap.xml, and provide any links to partners from this point on in lowercase format. We are also proposing to 301 redirect any non-lowercase URLs to the lowercase version. These pages already have a canonical link tag due to us hosting different versions of these pages on multiple domains, for skinning purposes. The link in the canonical link tag will also be changed to be lowercase. What I am concerned about is, URLs of the case above have been in the rankings for a few years now, and if all of a sudden our links are all lowercase, will they drop off the rankings? Or will the above measures mean that the pagerank is transferred to the lowercase version of the URL? Thanks in advance, James
Intermediate & Advanced SEO | | SeeTickets0 -
Reversing 301 Re-Directs
What's your philosophy on reversing 301 redirects? Does it depend on how long the redirect has been in place? Is it okay to implement a 301 redirect and remove it if the desired results aren't achieved? Also, what about multiple 301 redirects and removing those? I'm working with a site that has several 301 redirects in place and there's no definite knowledge as to when these were placed. I know there's always a danger and the possibility of unintended results when moving these around. I'm just curious as to what others' experience has been with placing and removing these either within a short period of time or over the course of as much as a year. Thanks in advance!
Intermediate & Advanced SEO | | JamieCottle280