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270
votes
20
answers
47k
views
The Sitemap Paradox
of your site will be crawled or included in our search results" citation
Given that links found in sitemaps are merely recommendations, whereas links found on your own website proper are considered canonical …
221
votes
The Sitemap Paradox
Disclaimer: I work together with the Sitemaps team at Google, so I'm somewhat biased :-).
In addition to using Sitemaps extensively for "non-web-index" content (images, videos, News, etc.) we use inf …
105
votes
Why are URLs case-sensitive?
query][#fragment]
\____________________/\________________________/
Location Data
Location - The location has a canonical form, and is case-insensitive.
Why? … Case-sensitivity has its pitfalls when it comes to caching and canonical URLs, but it is certainly useful.
Some examples:
Base64, which is used in Data URIs. …
93
votes
5
answers
13k
views
How do I transition to SSL without affecting PageRank?
Here are the relevant bits of our plan (testing on small sites, moving up to stackoverflow.com):
Get SSL ready/enabled (but not linked to) on all domains
Start rendering only the <link rel="canonical …
92
votes
Are there any clear indicators that my sitemap file is beneficial?
A Sitemap file helps search engines to discover new and updated URLs on your website. In particular, if your website is fairly large, then this can help them to be able to focus on the new & updated c …
59
votes
Accepted
SEO: Where do I start?
Here is what you need to know for SEO.
1) Perhaps the most important thing is the canonical link tag. … The canonical link tag represents an absolute path that you would like to represent your page in a search engines index to reduce redundant indexing. This is supported by MSN, Yahoo, and Google. …
45
votes
Another website is mirroring and ranks above my site in search results
If they're just mirroring your site by feeding your site through a proxy script or regurgitating your HTML verbatum, you can add canonical URLs to your pages. …
44
votes
Accepted
Does it make a difference if your URL path ends in a trailing slash or not?
If that isn't an option you will want to add a <link rel="canonical" href="your link"/> to both pages which will define which one is the master or parent. … Matt Cutts has a great article here, http://www.mattcutts.com/blog/canonical-link-tag/, that covers the topic in its entirety. …
39
votes
Accepted
Why, on StackExchange sites, is the post title on the question page a link to itself?
It provides access to the true, canonical URL, without query string parameters and the like. And quick access to right click and copy the link address, eg for sharing. …
34
votes
Accepted
How do I transition to SSL without affecting PageRank?
You avoid duplicate content by using the canonical URL and the 301 redirect will transfer most of your PageRank (a small amount is lost in the redirect). …
33
votes
Accepted
What is duplicate content and how can I avoid being penalized for it on my site?
(when spammy)
Pick a page as the canonical source of the content and lower the priority or not index the other page with the duplication. … URL
If your site must return the same content under multiple URLs (e.g. for a "print view" page) specify a canonical URL manually with a link element in the document header
In cases where your site returns …
31
votes
Accepted
How to use rel='canonical' properly
There's no circularity implied by having <link rel='canonical' href='http://www.example.com/product/foo' /> appear as http://www.example.com/product/foo.
That's the intent. … More about rel="canonical" from Google
existing-rel-values at microformats.org …
31
votes
2
answers
2k
views
How to use rel='canonical' properly
product=foo
For Google's sake I want the URL www.example.com/product/foo to be the canonical one. … Is there any issue with doing this or does having a circular canonical not cause any issues? …
30
votes
4
answers
33k
views
Can I use <link> tags in the body of an HTML document?
When adding Schema.org microdata markup to an HTML page, I want to add canonical info in a link tag like this:
<div itemscope itemtype="http://schema.org/Book">
<span itemprop="name">The Catcher in … According to them, this is the way to go for people that want to add a canonical reference to an itemprop, but don't want to place a hyperlink on their website. …
28
votes
Accepted
Should I have both example.com and www.example.com?
Solution Part 3 (Optional Canonical Links)
It is recommended these days use canonical links to help search engines establish the page, if the site is accessible with and without www without a 301 redirect … Also canonical links help prevent duplicate content unrelated to www so even without the topic of www or not www it’s a helpful thing to have because you may have content accessible on different sub paths …