Google Will Look At Your Other Sites When You Get A Manual Action

Murray · Mar 27, 2014

Thought this was very interesting

http://www.seroundtable.com/google-other-sites-penalty-18228.html

Matt Cutts was asked about a single site by Marie Haynes who works recovering penalty hit sites, but his reply was

make sure to press your client about exactly how many "quick case" sites they own, because it appears to be several.

so I worry that you haven't truly gotten through to your client, who shows signs of long-standing, mass, deliberate spam

So if you get in trouble with one of your sites it could lead google to looking into others you own..

An interesting tool that might give you some insight into what google see's is netcomber.com which I believe was made by an ex-google employee, it can find linked sites by stuff like analytics/adsense codes, shared link profiles and what not.

If you're going to be doing anything spammy try not to leave any finger prints or a trail back to your other sites.

Brassneck · Mar 27, 2014

Murray said:
Thought this was very interesting

http://www.seroundtable.com/google-other-sites-penalty-18228.html

Matt Cutts was asked about a single site by Marie Haynes who works recovering penalty hit sites, but his reply was

So if you get in trouble with one of your sites it could lead google to looking into others you own..

An interesting tool that might give you some insight into what google see's is netcomber.com which I believe was made by an ex-google employee, it can find linked sites by stuff like analytics/adsense codes, shared link profiles and what not.

If you're going to be doing anything spammy try not to leave any finger prints or a trail back to your other sites.

That's absolutely true and has been for some time. I had sites with some Amazon affiliate code and they were all penalised at same time for, I presume, thin content. Guess it's even easier for them if you use the same adsense and analytics etc. It also seems that they only review a few of your sites - so even if 95 are great and only 5 dodgy, if they review a couple of dodgy ones they will assume all are dodgy. Long way back once penalised!

Stephen.

jezz · Mar 27, 2014

That has been known for a long time, more than one example of someone losing multiple sites after listing them all under one WMT account for example.

If you run multiple sites in the same sector (targeting same KW's) or are doing anything aggressive to rank them you need to avoid WMT / Analytics / Same IP / Registrar / WHOIS etc.