HTLBID compiles all of your ad code into a single javascript file. The compilation process takes anywhere from 30 seconds to about 5 minutes, depending on which modules are enabled.
Because this process is not instantaneous, every time that a new revision is saved, it goes through a “build process” where the code is compiled, minified, zipped, stored permanently on HTL’s CDN and prepared for deployment. This happens once per revision, allowing us to keep a record of every change made to the ad configuration over time.