Does a URL upper case to lower case rule harm SEO rankings?

[CayenneRed89]

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

[gfiorelli1]

No... it may simply mess up with canonicalization in certain cases (eg: ASP based websites) and surely is not that user friendly (people tend to type in URLs lowercase, apart some crazy people)

[Andy.Drinkwater]

Hi Duncan,

I personally wouldn't be doing it like that. Have a read of this article on .htaccess rewrites to redirect upper case to lower case. It should give you a copy & paste solution to what you wish to achieve.

-Andy