Google -30 filter
There’s been a lot of chatter recently about a so-called “30 filter” or “-30 penalty”.
At it’s heart it sounds like an advanced feature of Google Sandboxing - ie, a website that can only rank low, not simply for it’s own keywords, but even domain name.
The interesting point about this filter/penalty is that it’s very specific - all rankings on the domain are reduced by 30 positions.
Here are some of the discussions so far on the issue:
Among the general forum chatter, there are some key points that keep getting raised:
- This is a penalty for minor infractions of Google’s Webmaster Guidelines
- The penalty occurs when multiple trigger conditions are met
- Site with lower quality indicators - ie, affiliate programs, and running Google Adsense - are commonly affected
- Large-scale link acquisition could be a key trigger
- Duplicate content could also be a potential trigger
- The penalty is re-evaluated on a periodic basis - ie, every 30 days
- A reinclusion request to Google may be helpful in expediting removal of the penalty
The issue has especially got my attention after someone approached me with this problem this week, and as they are now a client, it’s my job to try and reverse this penalty.
First steps are to prepare for a reinclusion request that:
A. Admits they used a link exchange program before, but have since deleted it and will no longer use one
B. Has extensively written articles for publishing on third-party websites, with links - but will now cease this practice, in order to publish own content only to own site
C. Removed AdSense and Google Search for improved user quality of the site
D. Explain that the sign-up form linked to on another domain is not an affiliate link, but another website they had to set up for technical reasons (host for main site wouldn’t support the scripting language required in the form page)
The company also previously applied an affiliate program, and there are a lot of links coming in from these. I’m considering whether to rewrite those affiliate URLs to the site homepage, or simply rewrite them into a blackhole to reduce the overall link overhead on the site (ie, point 4 above).
In the event that the reinclusion request doesn’t have any short-term effects, then my next moves are:
i. Focus on Longtail
ii. Recommend PPC management
The main reason for these two options is that the site at present is a complete mess, and I’m having to rebuild it to be search engine friendly. They also have a load of great content that went AWOL and the developer never considered redirects for. When all that’s fixed it should bring in traffic and conversions, and profitability with it - based on Longtail searches.
The second is that this company has been entirely reliant on organic rankings on Google for all business leads. This is such a fragile egg that in the event that I can’t help remove the penalty at present, I can at least help them re-arrange their business plan to pay for - and convert - traffic, rather than continue to expect it for free.
Previous: « Trolls and hackers can kill
Next: When companies listen to the internet »
Visited 969 times, 1 so far today since July 24th 2007



I am curious if any news have come up on this subject. I currently have 5 different domains suffering from this filter and the only common denominator that i can find is.
* To similar anchor text
* many BL from directories
* Aggressive linkbuildning
* Affiliate or Adsense on the sites
Any suggestion what i should focus my energy on ? (execept a reinclusion)
Other reads on this subject talks about java redirects, guestbook spamming, duplicate content. etc.. none of this is an issue on my sites..
Comment by MeMyself — April 18, 2007 @ 9:23 pm
The only experience is someone who came to me with a site already suffering the penalty.
From looking it that site, I’d say the -30 penalty is effectively like an extension to the Google Sandbox - ie, it’s related to links issues.
So too much aggressive link building - and the site is fried.
Hope that helps.
Comment by Brian Turner — April 20, 2007 @ 8:15 am
Thanks Brian, what’s your suggested strategy of getting a site back from this penalty? Do you believe a site can recover without a reinclusion request?
The site that you helped with regarding the -30 penalty, did it have to targeted anchortext or did it use the same description text for directory submittings?
Comment by MeMyself — April 20, 2007 @ 10:41 am
For this particular site, we’re trying to remove a lot of the link sources - basically, he’d submitted hundreds of articles over a couple of years, and these had been heavily syndicated by Made For Adsense sites.
We’ve removed the article sources, so that should stop the syndication, and see his number of backlinks gradually decrease.
The idea is that if the -30 penalty is a development from sandboxing, then at some point we should reach a threashold where he suddenly re-appears in Google for his keywords.
Once that happens, allow a little more cooling, then focus on developing stronger and better quality links to take the slack from the decling article links.
That’s the theory, though - needs to be seen what happens, though.
Hope that helps. :)
Comment by Brian Turner — April 20, 2007 @ 12:20 pm
Hi again Brian.
I am still suffering from the filter and none of the sites have bounced back. I am curious about your progress on the filter-breaking, can you do an update on the post or give some info on your progress with the sites.
Comment by Memyself — August 5, 2007 @ 1:04 pm
I’m afraid the person I was trying to help is no longer with me, so I’ve not been able to provide an update.
It didn’t help the fact that he insisted on a reinclusion request without cleaning up his site.
He had a serious problem with his link profile - a ton from article sites - so if you have bad link profiles on your sites, I’d certainly recommend killing off low quality links in volume, and focus on developing a link profile for your sites as high a quality as possible.
2c.
Comment by Brian Turner — August 5, 2007 @ 6:18 pm