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The bots are using tumblr to scam Google.

Let’s say someone is looking for porn and they put “wife caught her husband cheating,” into Google. There are a lot of porn sites (and some news sites) with that title. So Google has to decide which order to show them in, because most of the time, people pick something off the first few pages of Google.

Google wants to have the very best “wife caught her husband cheating” (or whatever else you search for) sites on the first page of the search. Google has several ways to try and decide which site are the best, but one of them is that it looks at how popular it is by seeing how many other websites link to it. If a lot of other sites are linking to it, it was probably useful to them, so Google will put it on the front page.

So if I’m a sleazy pornsite owner, I could create like a thousand websites and make them all link to my “wife caught her husband cheating” site, and act like a whole bunch of different websites thought it was pretty great. They’d be like “xdfgt .com”, “xdfgy .com”, “xdfgh .com,” just nonsense addresses nobody else was using, or whatever. I’d try to make Google think my site was awesome, because all these other websites are linking to it.

But Google has already caught on to that. Google would know “xdfgt .com” was a crappy fake website, because nobody else is linking to “xdfgt .com”. Any website that is only linked to by crap websites is also crap, as far as Google is concerned. Google won’t put it on the first pages of search results.

So instead let’s imagine the sleazy pornsite owner creates a thousand fake tumblrs instead, like “xdfgt.tumblr .com” and “xdfgy.tumblr .com” and “xdfgh.tumblr .com” and just puts one or two posts on them to add links to the “wife caught her husband cheating” porn site. Google can still tell those tumblrs are crap websites, because nobody else is linking to them. But the difference is … on tumblr, the sleazy pornsite owner can make your website link to him.

Let’s say your tumblr is “mostlyaestheticandfunny.tumblr .com”. If “xdfgt.tumblr .com” likes one of your posts, there’s link on your blog to “xdfgt.tumblr .com.” Somewhere on “mostlyaestheticandfunny.tumblr .com” it will say “xdfgt liked this” with a link from your blog to “xdfgt.tumblr .com.”

Google’s bot looks at “mostlyaestheticandfunny.tumblr .com” and it sees that your blog is a good website. People are linking to it (talking to you or reblogging from you), you write like an actual human being, you have nice pictures, you update sometimes, you aren’t a bot. So Google decides your blog isn’t a crappy scam website. Then it sees the link to “xdfgt.tumblr .com” and it thinks “oh hey, a nice website with good stuff written by a real human linked to this “xdfgt.tumblr .com” I guess maybe “xdfgt.tumblr .com” is a decent website too.”

Then it looks at “xdfgt.tumblr .com” and it sees the link to the porn site with “wife caught her husband cheating”, and it says, “well, I guess that “wife caught her husband cheating” site is a good site. I know that because there’s a good site linking to it here at “xdfgt.tumblr .com.” I know “xdfgt.tumblr .com” is a good site because “mostlyaestheticandfunny.tumblr .com” linked to it, and I know “mostlyaestheticandfunny.tumblr .com” is a good site because it is updated and writes like a real person and people talk to it and link to it.”

So basically the porn bots are using the fact that you have a good blog to make themselves look better and to try and trick Google’s bot into thinking they’re very popular and it should put them at the top of its list when people search Google for porn.

It’s really annoying! It would be really nice if the people running tumblr figured out a way to not be free advertising for every sleazy porn site on the internet

source.

hey wow thats actually really useful! and its written in a way that i (a bird with no knowledge of the wizardly internal workings of a website) can understand!

FINALLY AN EXPLANATION