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IP blacklisting due to other sites on shared ISP IP?

A general question about exposure to blacklisting...

     
10:41 pm on Feb 28, 2005 (gmt 0)

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Hi folks.

I run a server which has around twenty sites on it. One of my customers* wishes to get AdSense on an ad that is hosted on my server. I also wish to look to getting AdSense on one of my own sites, which currently would share the same IP (using url routing from the http header - this is IIS5 on a W2K box).

(* customers insofar as I run a well specced server and sublet some space to offset the ISP and server costs)

Though nothing has been applied for, my customer (we'll call him Bob) wants to add it to his site. If I also add to my site, and Bob does something naughty to get himself and his company blacklisted - e.g. fraudulent clicks or similar - does that mean that Google will blacklist all sites that live on that IP address, or just his own domain?

Obviously AdSense appears to be a realistic option to bring in useful revenue on either site, and I don't want to say 'no' to my customer without good reason. Should the customer be naughty, I'd hope it would only result in his site being blacklisted, not my IP address. Then again, I could understand Google taking a 'no risks' approach. Of course, this would cause major havoc for ISPs who host hundreds or even thousands of sites on one shared server.

All hypothetical, as neither of us yet has AdSense, but I'd sure like to try it out, and so would my customer.

Anyone any experience in this? What does 'blacklisting' mean, and can one site 'tarnish' the reputation of others on one IP? How would this work for shared servers at ISPs?

Ta,

John

8:58 am on Mar 1, 2005 (gmt 0)

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Anyone know anything? I'd like to be able to say 'yes' or 'no' with an informed reason...

Ta,

John

10:23 am on Mar 1, 2005 (gmt 0)

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First of all, I would not be a customer of any hosting company to whom I would have to ask for a permission to add anything to my site, of course if the content being under legal and ethical boundaries.
In other words - it should not be your business.

If you add adsense to your site too, there should be no problems regarding your or your customers' adsense accounts, regardless of the same IP.

Indeed, the problem could arise if some of the hosted sites become blacklisted by seach engine for some spamming or other "no-no" activity.
It is possible that the IP or even the whole C block (0-255) be penalized in SERPs (not adsense).
It seems however, that Google do not blacklist the other sites on the same IP, instead they use domain name only.
Google's IP tracking is primarily used for finding and discounting artificial links.

11:19 am on Mar 1, 2005 (gmt 0)

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That's what I suspected. As it happens, I think the likelihood of the customer (who I know reasonably well) doing anything naughty is extremely slim, but I did want to double check.

As for the 'not wanting to deal' business - well, my customer isn't strictly a customer - more someone who will share some of the space and bandwidth on my extremely bone idle server whilst helping to offset my own costs. The server sits with very low CPU and bandwidth usage, so is effectively a dedicated server for the customer (in performance terms - so long as they don't bugger about with my sites!)

Try getting a hosting package with full admin rights on a top notch dual Xeon server for 25/month without having to share it with thousands of others, and then you'll see why I'm a little more careful... I can be!

Anyway, thanks, I'm going to go ahead and apply and see how it goes and I'll advise my customer to do likewise. The arrangement I have involves a fair amount of trust, but I must also protect my own websites' interests.

John

 

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