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• Stopping Referrer Spam

  13 mai 2015, par Piwik Core Team — Community

  In this blog post we explain what is Referrer spam, this new kind of spam that has recently appeared on the Internet. We also provide solutions to stop it and preserve the quality of your analytics data.

  What is Referrer Spam ?

  Referrer spam (also known as log spam or referrer bombing) is a kind of spamming aimed at web analytics tools. A spammer bot makes repeated web site requests using a fake referrer URL to the site the spammer wishes to advertise.

  Here is an example of referrer spam in action :

  

  Half of those referrers are spams, here are some well know spammers that you may have seen in your logs : buttons-for-you-website.com, best-seo-offer.com, semalt.com…

  The benefit for spammers is that their website will appear in analytics tools like Piwik or Google Analytics :

  • public analytics reports (or logs) will be indexed by search engines : links to the spammer’s website will improve its ranking
  • curious webmasters are likely to visit their referrers, thus bringing traffic to the spammer’s website

  How to deal with Referrer Spam ?

  Referrer spam is still new and analytics tools are all handling it differently.

  Referrer Spam in Piwik

  At Piwik we started working on mitigating Referrer spam more than a year ago. If you use Piwik and keep it up to date, you do not need to do anything.

  Referrer spammers are automatically excluded from your reports to keep your data clean and useful.

  New spammers are continuously detected and added to Piwik’s blacklist on each update. If you find a new spammer in your analytics data, you can even report it so that it is added to the Piwik’s open referrer blacklist and blocked for everyone.

  Referrer Spam in Google Analytics

  Google Analytics doesn’t offer any spam protection by default. It can however be configured manually using a custom Filter.

  To create a filter in Google Analytics go to the Admin section and click on All Filters. Create a new custom filter that excludes based on the Campaign Source field. In the Filter pattern enter the spammers domains you want to exclude (this is a regular expression) :

  

  If new spammers arise you will need to update this list. You can also use Piwik’s referrer blacklist to exclude all the spammers currently detected.

  Other Analytics Tools

  Many web analytics tools do not yet handle Referrer spam and when using these tools, you will often find a lot of spam data in your Referrer Websites analytics reports.

  If you use an analytics tool that does not exclude Referrer spam, we recommend to contact the vendor and ask them to implement a mechanism to remove these referrer spammers. As of today many analytics vendors still have not mitigated this issue.

  Public List of Referrer Spammers

  At Piwik with the help of our large community we have decided to tackle this growing spam issue. We have created a list of up to date referrer spammers that anyone can edit.

  The list is available in a simple text file on Github : github.com/piwik/referrer-spam-blacklist.

  The list is released under the Public Domain and anyone can use it within their applications to exclude referrer spammers.

  Many people have already contributed new spammers to the list. We invite you to use the list in your apps and websites and help us keep the list up to date !

  Let’s unite and fight the spammers together.

  Happy Analytics !

• Powerful Video Analytics and Audio Analytics for Piwik

  10 novembre 2016, par InnoCraft — Plugins, Press Releases

  Over the years, one of the most frequently requested feature by users was to be able to measure how videos and audios are watched and engaged with on your website. We are finally able to announce that it is here ! We are very excited to launch Media Analytics, which will help you understand and grow your audience.

  This article is a showcase of the new powerful video and audio analytics product built for Piwik.

  Why media analytics ?

  We all love media content such as videos as they can make our experiences on websites and apps so much more interesting. A growing number of websites now utilize media files in one form or another : a video presentation of a product or service, a video tutorial teaching you how to do something or interviews with key speakers. Also many creators and distributors are publishing audio files such as podcasts or music songs, and even broadcasting live video events such as music concerts or an entire conference online.

  Whenever you publish videos or audio media on your websites or applications, Media Analytics provides you with clear insights on how your audience interacts with your content. It helps you see what content works and why – so you can better understand and further grow your business !

  

  Valuable insights in Real time

  

  See where your audience comes from.

  How will Media Analytics help me grow ?

  • Better understand your audience : who are the users playing videos and for how long, how often, and where have they dropped off.
  • Gain quick insights into how interaction with your media changes over time with easy to use graphs and report overviews.
  • Get closer to your users by seeing every action of your visitors before and after they utilized your media.
  • View valuable insights in Real time : ‘most popular content right now’, your real time audience map, and more.
  • See where your audience comes from. Drill down right from continents to specifics such as cities.
  • Share and export media analytics reports with your colleagues by creating custom email reports.
  • Video and audio players are supported either automatically (for Youtube, Vimeo, HTML5…) or via a simple custom player integration.
  • No data limit and 100% privacy and data ownership.

  Best of all, it is easy to use and understand, and integrates perfectly with Piwik. Media Analytics complements other reports to give you a 360 degree view of how your users engage with your content.

  Learn more on the official website : www.media-analytics.net

  How do I get Media Analytics ?

  All premium plugins come with our 14 day money back guarantee and 1-click installation & updates. Customers get all product updates for free.

  Learn more about Media Analytics Get it now on the Marketplace

  Media Analytics is available for purchase and download on the Marketplace.

  If you are not using Piwik yet, you can also signup for a free trial of Piwik Cloud (including Media Analytics !).

  Have a question about this product ? Get in touch.

• Capturing frames from h264 video in android froyo

  21 janvier 2013, par Grzegorz Patyn

  The problem : "How to capture image frames from video in Android api level 8"
  Description : In api level 10 there was released MediaDataRetriever class, which has method "captureFrame". It doesn't work in api level 8.
  I made many studying around a problem :
  Trying to install android-support-v13 library - fail, because it doesn't have MediaDataRetriever class.
  I tried using ffmpeg.
  I compiled ffmpeg using ndk, for arm processors in many ways. Basically You can have problem Collect2: cannot find ld in ndkr8d, so i finally compiled with ndkr8b and got ffmpeg executable file.
  Now, having executable ffmpeg from this project : https://github.com/guardianproject/android-ffmpeg-java
  there is a problem :
  The library needs root access but i don't have it. I want my app work on most android apps. In order to execute ffmpeg, i do :

      String path = ( Environment.getExternalStorageDirectory() ).getAbsolutePath();
  
  String ffmpegBin = path+"/test/ffmpeg";
  
  String komenda = ffmpegBin+" -vframes 1 -ss 10 -i video.mp4 -f image2 -vcodec mjpeg "+path+"/test/frame%d.jpg";
  
  Runtime rt = Runtime.getRuntime();
  
  try {
  
      Process proc = rt.exec("chmod 700"+ffmpegBin);
  
      rt.exec(ffmpegBin,null,null);
  
  } catch (IOException e) {
  
      // TODO Auto-generated catch block
  
      e.printStackTrace();
  
  }

  Expecting to run ffmpeg command.
  I get the following error :

     01-21 15:29:24.129: W/System.err(10051): java.io.IOException: Error running exec(). Command: [/mnt/sdcard/test/ffmpeg] Working Directory: null Environment: null
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.ProcessManager.exec(ProcessManager.java:226)
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.Runtime.exec(Runtime.java:196)
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.Runtime.exec(Runtime.java:285)
  
  01-21 15:29:24.137: W/System.err(10051):    at com.example.ff.MainActivity.onStart(MainActivity.java:50)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1129)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.Activity.performStart(Activity.java:3781)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2641)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2684)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.ActivityThread.access$2300(ActivityThread.java:126)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2038)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.os.Handler.dispatchMessage(Handler.java:99)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.os.Looper.loop(Looper.java:123)
  
  01-21 15:29:24.137: W/System.err(10051):    at android.app.ActivityThread.main(ActivityThread.java:4632)
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.reflect.Method.invokeNative(Native Method)
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.reflect.Method.invoke(Method.java:521)
  
  01-21 15:29:24.137: W/System.err(10051):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
  
  01-21 15:29:24.137: W/System.err(10051):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
  
  01-21 15:29:24.137: W/System.err(10051):    at dalvik.system.NativeStart.main(Native Method)
  
  01-21 15:29:24.137: W/System.err(10051): Caused by: java.io.IOException: Permission denied
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.ProcessManager.exec(Native Method)
  
  01-21 15:29:24.137: W/System.err(10051):    at java.lang.ProcessManager.exec(ProcessManager.java:224)
  
  01-21 15:29:24.137: W/System.err(10051):    ... 17 more

  In test directory there is a video.mp4 file, which is a valid file. The directory also contains ffmpeg binary compiled for arm with ndkr8b from this source : https://github.com/guardianproject/android-ffmpeg

  Is there any way to use compiled ffmpeg in applications, can i set some permissions in AndroidManifest etc. without su ?