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Craiglist, because of its age, is interestingly built on Perl[1] and four years ago brought on Perl's founder, Larry Wall.[2] [1] https://www.craigslist.org/ab

Craiglist, because of its age, is interestingly built on Perl[1] and four years ago brought on Perl's founder, Larry Wall.[2] [1] https://www.craigslist.org/about/thanks https://www.craigslist.org/about/thanks (CL tech stack) [2] http://blog.craigslist.org/2013/10/15/artist-formerly-known/ http://blog.craigslist.org/2013/10/15/artist-formerly-known/

derefr 10y ago
Craigslist are so quiet about their tech; I'm surprised there's even that much. I'd love to hear their opinions on operating some of those things at scale, given that their problems are likely much more like those of the average CRUD-y SaaS business (scaled up) than they are like those of e.g. Twitter or Facebook, who have to care about things like "realtime demand-based geographic read-only partial replication of event streams."
- ouid 10y ago
  I believe this based on a thing I think I read a long time ago, but isn't all of CL's tech focused solely on preventing any indexing of the site? It's no wonder they would keep it quiet.
  - derefr 10y ago
    I would like to believe this, but given the amount of spam that gets posted to CL—and given how well a sophisticated, heuristic anti-indexing WAF would block spambot request traffic as a simple side-effect—I find the idea a bit dubious.
    - jzawodn 10y ago
      Dubious indeed.
    - dismantlethesun 10y ago
      A lot of spam on CL isn't created by bots, but by human beings. As little as 3 years ago, I knew people who'd make job ads on elance asking someone to 'automate' their craigslist renewals and postings.
  - nunez 10y ago
    that cant be right given how you can find cl pages on google
    - detaro 10y ago
      or they just decided to allow Google?
- jzawodn 10y ago
  Simplicity has its benefits. And, to be clear, there is some info online about craigslist tech. Source: I'm a 8+ year employee who's given public talks about tech at craigslist, some of which have been recorded and are online.

derefr 10y ago

Craigslist are so quiet about their tech; I'm surprised there's even that much. I'd love to hear their opinions on operating some of those things at scale, given that their problems are likely much more like those of the average CRUD-y SaaS business (scaled up) than they are like those of e.g. Twitter or Facebook, who have to care about things like "realtime demand-based geographic read-only partial replication of event streams."

ouid 10y ago
I believe this based on a thing I think I read a long time ago, but isn't all of CL's tech focused solely on preventing any indexing of the site? It's no wonder they would keep it quiet.
- derefr 10y ago
  I would like to believe this, but given the amount of spam that gets posted to CL—and given how well a sophisticated, heuristic anti-indexing WAF would block spambot request traffic as a simple side-effect—I find the idea a bit dubious.
  - jzawodn 10y ago
    Dubious indeed.
  - dismantlethesun 10y ago
    A lot of spam on CL isn't created by bots, but by human beings. As little as 3 years ago, I knew people who'd make job ads on elance asking someone to 'automate' their craigslist renewals and postings.
- nunez 10y ago
  that cant be right given how you can find cl pages on google
  - detaro 10y ago
    or they just decided to allow Google?
jzawodn 10y ago
Simplicity has its benefits. And, to be clear, there is some info online about craigslist tech. Source: I'm a 8+ year employee who's given public talks about tech at craigslist, some of which have been recorded and are online.