Meta canonical or simply robots.txt other domain names with same content?

[Louis-Philippe_Dea]

Hi,

I'm working with a new client who has a main product website.

This client has representatives who also sells the same products but all those reps have a copy of the same website on another domain name.

The best thing would probably be to shut down the other (same) websites and redirect 301 them to the main, but that's impossible in the minding of the client.

First choice : Implement a conical meta for all the URL on all the other domain names.

Second choice : Robots.txt with disallow for all the other websites.

Third choice : I'm really open to other suggestions

Thank you very much!

[MikeRoberts]

Okay, so no 301s.... well then, assuming all of those duplicate sites have been live for a while and crawled by the spiders, you might be better served with canonical tags.

[Louis-Philippe_Dea]

Thanks Mike!

In your opinion, big 301 redirects would be totally better ?