Unused url 'A' contains frameset - can it damage the other site B?

[Webrevolve]

Client has an old unused site 'A' which I've discovered during my backlink research. It contains this source code below which frames the client's 'proper' site B inside the old unused url A in the browser address.

Quick question - will google penalise the website B which is the one I'm optimising? Should the client be using a redirect instead?

---

<frameset <span class="webkit-html-attribute-name">border='0' frameborder='0' framespacing='0'></frameset <span>

<frame src="http: www.clientwebsite.co.ukb" frameborder="0"  noresize="noresize"  scrolling="yes"></frame src="http:>

Please go to http://www.clientwebsite.co.ukB

<noframes></noframes>

---

Thanks,

Lu.

[Webrevolve]

Thanks - I'm hoping more people will agree with you on this one. As well as confusing humans, surely Google must be suspicious too. Like you say, I would 301 them too, and my Dev also agrees, but would be nice to hear it from the wider SEO community.

[bradwayland]

I'm curious to hear what you find out about this one.  I'm not an authority on this but it sure doesn't seem very clean.  I would want to take site A and 301 all the old to the new and get rid of this structure completely.  I'm sure you have already considered that.  When I talk to people I always tell them we are trying to be the least imperfect.  Having this frameset A certainly doesn't seem like the least imperfect approach in most competitive spaces.  Good luck!