ThousandEyes, a company with software for monitoring the performance of cloud-based applications, has raised $20 million in new funding, according to a regulatory filing it submitted today to the U.S. Securities and Exchange Commission.

Company representatives did not immediately return VentureBeat’s requests for comment.

ThousandEyes focuses on the way network performance affects the way apps run. It can help admins figure out which specific segments of a network might responsible for lag. Companies that sell cloud-based software can use it and thereby ensure things are running well for their customers. ThousandEyes can also help spot issues that could affect employees who use cloud applications inside big companies.

Administrators can set up dashboards to observe trends and alerts to find out about problems right away.

ThousandEyes started in 2010. It announced $5.5 million in venture funding last June.

Customers include Dropbox, Evernote, Jive Software, Okta, Zendesk, and Zynga.

ThousandEyes competes with network-performance management software from legacy vendors like IBM and BMC as well as startups like NetScout, SevOne, and VSS Monitoring.