Okay. Without knowing the sites in question, I will try and explain a bit of what is going on and I will provide just a few links.
I get the following domain names associated with the new method of referrer spam that people are seeing of late.
- Hulfingtonpost.com (New- added Jan 16 2015)
- Bestwebsitesawards.com (New- added Feb 3 2015)
- Ranksonic.info (New- added Feb 3 2015)
- Cenoval.ru (New- added Feb 6 2015)
- o-o-6-o-o.com (New- added Feb 25 2015)
- Humanorightswatch.org (New- added Mar 4 2015)
- S.click.aliexpress.com (New- added Mar 17 2015 - Suspected)
- www1.social-buttons.com (New- added Mar 23 2015 - Suspected)
- 4webmasters.org (New- added Mar 26 2015 - Suspected)
- Googlsucks.com (New- added Apr 07 2015)
- Addons.mozilla.org (New- added Apr 07 2015 - Suspected)
- Smallseotools.com (New- added Apr 13 2015 - Suspected)
- Theguardlan.com (New- added Apr 14 2015)
- Buy-cheap-online.info (New- added Apr 16 2015 - Suspected)
- Site1.free-share-buttons.com (New- added Apr 29 2015 - Suspected)
- Sanjosestartups.com (New- added May 25 2015)
- Trafficmonetize.org (New- added June 03 2015 - Suspected)
- Howtostopreferralspam.eu (New- added June 09 2015 - Suspected)
- Www10.free-social-buttons.com (New- added June 16 2015 - Suspected)
- Getitfree.us (New - added June 18 2015 Ownership cannot be determined. Thank You - Trey Copeland)
- Www6.free-social-buttons.com (New- added June 18 2015 - Suspected)
- Erot.co (New- added June 26 2015 - Suspected)
- 3g2upl4pq6kufc4m.onion (New- added July 04 2015 - Suspected)
- Traffic2money.com (New- added July 28 2015 - Suspected)
Note: Suspected items- do appear to follow the same pattern of ownership, and may not be tied to the same offender.
A rather exhaustive list of spam referrers maintained by Piwik can be found here: https://github.com/piwik/referrer-spam-blacklist/blob/master/spammers.txt (Thank You - user2428118)
BlackHatWorth.com is a relatively new domain created only on January
7th, 2015 which is now being used for referrer spam. As a matter of
fact, this referral spam website is being hidden behind the name of
shopping search engine and beautiful scenery images.
...the IP address of BlackHatWorth.com which is 188.8.131.52 is the
same one associated with other referral spam websites...
In fact, the domain BlackHatWorth.com is owned by the same Russian who
owns the other referral spam domains such as ILoveVitaly.com,
Econom.co, and Darodar.com. The domain owner’s name is supposedly
Vitaly A Popov of Samara (city), Samaraskaya Oblast (state), Russia.
You cannot block this!
Here’s a quick primer on how Google Analytics works.
So, you get setup on GA and get a code from them. The code looks like
UA-number-1 or some such thing. That number is your “account number”
browser talk to Google Analytics. Specifically, it makes certain types
of HTTP requests that Google records information about, and then GA
displays summaries of that information to you.
Pretty basic, right? Still with me? Okay, now, if all it is is this
Anybody at all. All I have to do to make your GA show false
information is to send my fake information directly to GA.
at all. I just need to reproduce those HTTP requests, which are public
and so anybody can see them and how they work. They’re even fairly
well documented, publicly, by Google themselves.
So, now, let’s say I’m a spammer jerk. I want to get people to see my
spammy site. So, what do I do? I write a small bit of code to send
thousands upon thousands of these fake requests to GA, and I simply
cycle through all the UA numbers, in order, at random, whatever. I
send a fake visit, with a fake referrer, and my spammy domain name.
And guess what? It shows up in your Google Analytics screens.
You see this spam like any other normal visit. Because as far as GA is
concerned, it was a normal visit. All they’re recording are those HTTP
request is a request, and making a fake one is very, very easy.
That is what is going on. All I need is your UA number and with only a
minor bit of effort I can fake a visit to your site without ever
actually connecting to your site at all. That fake visit can have any
domain name and any referrer in it that I choose.
This is an attack on Google Analytics, to promote whatever site is
showing up. You cannot block it on your server, because your server is
not involved at all.
You can do two things: one, set-up a filter as John Conde suggests; and two, see if there is a way to inform Google. For that I do not have an answer, but I have an idea.
This is beginning to reach outrageous proportions from hundreds of spam hits a day to full out advertising such as this one: