Forum Moderators: Robert Charlton & goodroi
Will it give any bad effect on google if a site has many links, say 50 from a single IP?
or its just a marketing ploy by people who are building links or are SEO professionals having a desire to confuse people and make money.
thanks
i asked on webhosting forums and they said that each time IPs are alloted, they give a set of 8 out of which 5 are usable.
and with people asking for so many different IPs just for no reason but SEO, they dont think this will be possible.
Also, ARIN doesnt allot IPs for such reason. they only offer under new servers and SSL.
i asked on webhosting forums and they said that each time IPs are alloted, they give a set of 8 out of which 5 are usable.
I'd ignore that advice. While it can be true sometimes, it's not true always.
Whenever you allocate a subnet in a network, you lose three addresses (first/network, last/broadcast, one for the router). However the size of the allocation is what matters, a /29 which you describe above may or may not be what you get. But for shared hosting, many sites share the same address. Even with Virtual private servers, you generally get one address in a /32 allocation, it's just a virtual point-to-point link to the master.
To the original question, the whole thing about links from the same Class C [sic] IP (really a /24) came from some papers on detecting web spam, where links from within the same /24 were grouped together when calculating the probability of a site being spammy. It had nothing to do with relevence. Even the /24 prefix size is variable, it's just that it's a nice round number for network people, and around 55% of the advertised networks on the Internet use that size.
But I think the poster who said something like "we don't know, we can just speculate" will be found to be the closest :)
Sean
