Question2Answer

Category - Comment Systems

Question2Answer (Q2A) is a popular open source Q&A platform for PHP/MySQL.


We have discovered  1,141 live websites   that are using Question2Answer.

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Technology usage statistics

Websites using Question2Answer1,141 websites
Most popular in the country United States
Market position in Comment Systems#3
Market share in Comment Systems0.84%
Most popular version1.7.4

Technology adoption

Recent changes in Question2Answer usage. (See Question2Answer Usage Changes report)
Websites that added Question2Answer+22
Websites that dropped Question2Answer-30
Websites that changed version of Question2Answer12

Question2Answer usage distribution by website rank

The correlation between utilization of Question2Answer technology and the relative popularity of websites

Market Share

Question2Answer market share within the Comment Systems category



Geographical Distribution

Technology usage distribution by websites across the globe.



Websites utilizing Question2Answer

Top websites that use Question2Answer
DomainCountryRankContacts
answers.informer.com United States21,051
question2answer.org United States35,051
www.question2answer.org United States35,051
www.wikitree.com United States96,511
www.nqa.com United States111,663
www.cashfree.com India182,943
See full domain list

Always Used together


PHP: Total 30,565,992 domains found using PHP
Category - Programming Languages. 34,373,467 domains found using Programming Languages


Alternative Technologies


Disqus: Total 131,120 domains found using Disqus
IntenseDebate: Total 1,676 domains found using IntenseDebate
Livefyre: Total 775 domains found using Livefyre
Coral: Total 386 domains found using Coral
Muut: Total 97 domains found using Muut
utterances: Total 2 domains found using utterances





Major Versions

  • 1.xx (14 subversions, 191 domains)
  • 11.xx (1 subversions, 1 domains)