Drupal-based site management startup Pantheon now serves more than 1 billion web hits a month, an impressive milestone for a service that launched fully nine months ago.

As we’ve noted before, Pantheon wants to help companies get rid of their in-house content management systems and use Drupal instead. Pantheon bills itself as “Drupal-as-a-service” because it runs in the cloud and makes site management easier than if you had to run software on your own servers. Customers that use Pantheon include Chicago’s WBEZ (pictured), AAA, Alley Interactive, Stanford University Libraries, Kalamuna, USC Marshall School, and Big Switch Networks.

“We created Pantheon to liberate developers and companies from having to buy, run, and manage servers in order to bring their ideas to the web,” Pantheon CEO Zack Rosen said in a statement. “It’s been rewarding to see the number and diversity of companies that share that vision and are now using Pantheon, helping us reach this important milestone just a few months after our launch.”

On top of reaching the 1-billion-hits milestone, Pantheon has launched a new “Apollo Dashboard” to help its customers manage sites through a browser. Through the dashboard, developers can “deploy sites, create staging and testing environments, and manage code deployments” from one interface.

Pantheon offers a basic free plan for its service, with paid plans starting at $25 per month.

San Francisco-based Pantheon was founded in 2010 and has raised $6.3 million to date from investors including Foundry Group, Baseline, First Round, and Founders Collective.