We want to be clear about how we've built this site and what services we are interacting with, so you know how your data is being used. Below is a list of services we use, and a brief description of why/how we use them. We will attempt to keep this list up to date, but feel free to reach out to us via our feedback form if you have any questions, concerns, or believe there are other services that need to be added.
Drupal - https://www.drupal.org/
The HousingDB site is built on Drupal 7, an open source content management system. Most of our site's cookies come as a result of default/standard Drupal operating behavior.
Pantheon - https://pantheon.io/
We use Pantheon to host our installation of Drupal. This allows us to develop quickly and easily keep drupal up to date. Because our site is on Pantheon's servers, they have the possibility of collecting some access data such as IP address, urls accessed, etc.
Mailgun - https://www.mailgun.com/
We use Mailgun to reliably send emails from the site to our users. Because we use them to send emails from the site, any information in emails from the site may be known by the mailgun service.
ReCaptcha - https://www.google.com/recaptcha
We use ReCaptcha on some of our forms for users that aren't logged in to prevent spam data submitted by bots.