¿Disallow duplicate URL?

[thekiller99]

Hi comunity,

thanks for answering my question.

I have a problem with a website. My website is:

http://example.examples.com/brand/brand1 (good URL)

but i have 2 filters to show something and this generate 2 URL's more:

http://example.examples.com/brand/brand1?show=true (if we put 1 filter)

http://example.examples.com/brand/brand1?show=false (if we put other filter)

My question is,

should i put in robots.txt disallow for these filters like this:

**Disallow: /*?show=***

[Mustansar]

Hi There,

In my opionion yes, you can however i suggest you to read the following post from Moz

https://moz.com/blog/duplicate-content-block-redirect-or-canonical

I hope this will resovle your issue.

[netzkern_AG]

In my opinion: No, you should not. The result will be that those URLs are indexed but with a standard description to the effect that google knows the URL exists but not what is behind it; titles may be taken from links or past data.

Canonical is the way to go.

Regards

Nico