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I believe DuckDuckGo is using Perl, or were as of a few years ago. Source: http://www.gabrielweinberg.com/blog/2009/03/duck-duck-go-architecture.html http://ww

• jamesjporter 13y ago
  This plugin infrastructure uses Perl, so they definitely haven't moved away from it entirely http://duckduckhack.com/ http://duckduckhack.com/
  • aroman 13y ago
    Talking to a friend of mine who works there, they haven't moved away from it at all really. They've been optimizing the heck out of it, and as much as my kneejerk reaction to their infrastructure is "a collage of rubberbands and paperclips waiting to break in unexpected and unpredictable ways", I've gotta hand it to them for not giving in to the temptation to prematurely optimize. Clearly it's been working really well for them, and so I guess it's worth not "fixing" it until it starts breaking.
• boyter 13y ago
  Blekko is another, which is very impressive considering they do their own indexing and serving of results.
• clark-kent 13y ago
  Craigslist also uses perl: http://www.craigslist.org/about/craigslist_is_hiring#pd http://www.craigslist.org/about/craigslist_is_hiring#pd