Pushing Bad Data- Google’s Latest Black Eye

Google stopped counting, or as a minimum publicly displaying, the number of pages it listed in September of 05, after a school-yard “measuring contest” with rival Yahoo. That count crowned out around eight billion pages earlier than it was eliminated from the homepage. News broke currently thru numerous search engine marketing forums that Google had all at once, over the last few weeks, delivered some other few billion pages to the index. This would possibly sound like a motive for a party, however, this “accomplishment” would now not replicate well on the seek engine that performed it.

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What had the search engine optimization community buzzing became the nature of the sparkling, new few billion pages. They have been blatant spam- containing Pay-Per-Click (PPC) commercials, scraped content, and they have been, in lots of instances, showing up nicely inside the search effects. They pushed out ways older, greater mounting sites in doing so. A Google consultant replied through forums to the issue with the aid of calling it a “horrific records push,” something that met with diverse groans during the search engine optimization community.

How did a person control to dupe Google into indexing such a lot of pages of spam in any such short time period? I’ll provide a excessive stage assessment of the procedure, however don’t get too excited. Like a diagram of a nuclear explosive is not going to teach you how to make the real issue, you’re now not going so that you can run off and do it your self after reading this newsletter. Yet it makes for an interesting tale, one which illustrates the unpleasant troubles cropping up with ever increasing frequency in the global’s maximum popular search engine.

A Dark and Stormy Night

Our tale begins deep inside the heart of Moldva, sandwiched scenically between Romania and the Ukraine. In between keeping off neighborhood vampire attacks, an enterprising local had a tremendous concept and ran with it, probably faraway from the vampires… His idea changed into to make the most how Google handled subdomains, and no longer only a little bit, however in a massive manner.

The coronary heart of the problem is that currently, Google treats subdomains an awful lot the equal manner because it treats complete domains- as specific entities. This way it’ll add the homepage of a subdomain to the index and go back in some unspecified time in the future later to do a “deep move slowly.” Deep crawls are truly the spider following hyperlinks from the domain’s homepage deeper into the web site till it unearths the whole lot or offers up and comes again later for extra.

Briefly, a subdomain is a “third-stage domain.” You’ve likely visible them earlier than, they appearance some thing like this: subdomain.Area.Com. Wikipedia, as an example, uses them for languages; the English model is “en.Wikipedia.Org”, the Dutch model is “nl.Wikipedia.Org.” Subdomains are one manner to prepare large websites, rather than multiple directories or even separate domains altogether.

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So, we’ve got a kind of page Google will index actually “no questions asked.” It’s a wonder nobody exploited this situation quicker. Some commentators agree with the motive for that can be this “quirk” became added after the current “Big Daddy” update. Our Eastern European pal were given collectively a few servers, content scrapers, spambots, PPC money owed, and some all-critical, very stimulated scripts, and mixed all of them together thusly…

First, our hero here crafted scripts for his servers that might, when GoogleBot dropped by, start producing an basically limitless number of subdomains, all with a unmarried page containing keyword-rich scraped content material, keyworded hyperlinks, and PPC ads for those keywords. Spambots are despatched out to position GoogleBot on the heady scent via referral and comment junk mail to tens of heaps of blogs around the world. The spambots offer the large setup, and it does not take much to get the dominos to fall.

GoogleBot reveals the spammed links and, as is its motive in life, follows them into the community. Once GoogleBot is sent into the internet, the scripts running the servers sincerely preserve generating pages- page after page, all with a unique subdomain, all with keywords, scraped content, and PPC ads. These pages get listed and abruptly you’ve got your self a Google index 3-five billion pages heavier in below three weeks.

Reports imply, at first, the PPC advertisements on those pages had been from Adsense, Google’s very own PPC provider. The final irony then is Google blessings financially from all the impressions being charged to AdSense customers as they seem throughout these billions of junk mail pages. The AdSense sales from this endeavor were the point, in spite of everything. Cram in so many pages that, with the aid of sheer force of numbers, people might locate and click on the advertisements in those pages, making the spammer a pleasant profit in a completely brief amount of time.

Billions or Millions? What is Broken?

Word of this fulfillment spread like wildfire from the DigitalPoint boards. It unfold like wildfire within the search engine optimization community, to be precise. The “well-known public” is, as of but, out of the loop, and will probably continue to be so. A reaction by means of a Google engineer appeared on a Threadwatch thread about the topic, calling it a “bad information push”. Basically, the business enterprise line became they’ve not, in reality, added 5 billions pages. Later claims consist of assurances the problem might be fixed algorithmically. Those following the situation (by using monitoring the recognized domain names the spammer become the use of) see simplest that Google is putting off them from the index manually.

The tracking is executed the usage of the “website online:” command. A command that, theoretically, shows the entire wide variety of listed pages from the website you specify after the colon. Google has already admitted there are issues with this command, and “5 billion pages”, they seem to be claiming, is simply every other symptom of it. These troubles enlarge past merely the site: command, but the show of the number of effects for many queries, which a few experience are notably erroneous and in some cases fluctuate wildly. Google admits they’ve listed a number of these spammy subdomains, but so far haven’t furnished any trade numbers to dispute the three-five billion showed first of all through the website online: command.

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Over the beyond week the number of the spammy domains & subdomains listed has steadily dwindled as Google personnel remove the listings manually. There’s been no official assertion that the “loophole” is closed. This poses the plain problem that, because the manner has been proven, there could be some of copycats dashing to cash in before the algorithm is changed to deal with it.


There are, at minimum, two things broken here. The site: command and the obscure, tiny bit of the algorithm that allowed billions (or at least hundreds of thousands) of junk mail subdomains into the index. Google’s current precedence have to in all likelihood be to close the loophole before they’re buried in copycat spammers. The issues surrounding the use or misuse of AdSense are just as troubling for folks that is probably seeing little return on their adverting price range this month.

Do we “hold the faith” in Google inside the face of these events? Most possibly, yes. It isn’t so much whether they deserve that faith, however that most people will in no way understand this occurred. Days after the tale broke there is nonetheless little or no point out inside the “mainstream” press. Some tech sites have noted it, but this isn’t always the form of tale with a purpose to turn out to be on the evening news, often because the history understanding required to understand it goes beyond what the common citizen is capable of muster. The story will likely end up as an interesting footnote in that maximum esoteric and neoteric of worlds, “search engine optimization History.”

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