I've recently changed URLs to lower case. I'm also suffering from about 15% traffic drop from search engines, which started about a week after my change. Can this be related?

This is what I've done. Till now I've had all pages URLs look like this http://mydomain.com/folder/Page. And all internal links in the site were also to http://mydomain.com/folder/Page2.

All these have now turned into: http://mydomain.com/folder/page and http://mydomain.com/folder/page2.

And the page that still exists at http://mydomain.com/folder/Page has been add this in HTML <head>:

        <link rel="canonical" href="/folder/page" />

Have I done anything wrong? Would you recommend me to put it back to the way it was?

1 Answer 1


Yes, it can be related because one URL in lower case and upper case is not the same for search engines (thus Google). That's why you may lose some rankings on SERPs after changing the URLs. If it's the case, it can generate a loss of traffic.

In your case, putting the rel="canonical" tag is the best practice to avoid duplicate content issues. All what you've done is right!

Just wait a little bit to get your rankings back on SERPs.

  • Can you try giving a number estimation to a little bit?
    – Noam
    Commented Dec 12, 2013 at 21:21
  • Also - Would you recommend undoing the change?
    – Noam
    Commented Dec 12, 2013 at 21:26
  • An estimation is impossible, it depends on many factors. Otherwise, keep the lower case version, it's cleaner for URLs.
    – Zistoloen
    Commented Dec 13, 2013 at 12:40

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