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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
Jeff Atwood's user avatar
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 …
John Mueller's user avatar
  • 7,471
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. …
Kobi's user avatar
  • 1,709
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
Nick Craver's user avatar
  • 1,023
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 …
John Mueller's user avatar
  • 7,471
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. …
user avatar
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. …
John Conde's user avatar
  • 86.4k
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. …
Ben Hoffman's user avatar
  • 12.8k
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. …
DisgruntledGoat's user avatar
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). …
John Conde's user avatar
  • 86.4k
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 …
artlung's user avatar
  • 8,678
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? …
Ben Hoffman's user avatar
  • 12.8k
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. …
Edward Touw's user avatar
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 …
Simon Hayter's user avatar
  • 33.1k

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