Great question. Please bear with me as I try to explain without getting too technical on you!
As you browse the internet, X3watch is scanning websites and checking them against our server's database, the X3watch application database (the one that installs on your computer when you download the program), as well as your custom whitelist and blacklist (if applicable).
When the program scans a website and does not find it in your custom list or our server database, the program uses a real-time scan that looks for an excessive number of "trigger words" (these are usually inappropriate words or phrases). These words are assigned a numerical value. When X3watch detects that the number of trigger words scored on a website has exceeded our preset thresholds, the website may be blocked.
Websites blocked by the real-time scan will appear on your report with the block code "Failed Device Content Check".
BIG NEWS!! Over the years, one of the top complaints about X3watch was that it blocks too many good sites (we call these "false positives"). Now, we have some great news!
UPDATE TO EVER ACCOUNTABLE TODAY!
X3watch has partnered with Ever Accountable to bring existing (and new) X3watch customers the next generation of accountability software. Ever Accountable's software works on Mac, Windows, iOS, Android, Kindle Fire tablets and even Chromebooks! Although they do not block websites like X3watch, their accountability reports are second to none. There's so much more information available to users who switch over.
To learn more about making the switch from X3watch to Ever Accountable (and to see a video about making the switch), head over to: https://support.x3watch.com/hc/en-us/articles/115014877028-Existing-X3watch-subscribers-Learn-how-to-set-up-Ever-Accountable