Speed tests measure download speed, upload speed, latency (ping), jitter, and packet loss to determine internet performance. Individuals and communities use speed tests to check that their internet speeds match what they pay for, provide evidence for grants or challenges to infrastructure maps, and understand overall network quality in an area. While internet providers argue that many factors could affect speeds, community speed tests are still useful if done with good instructions, marketing, mapping of data by provider and location, and by sharing results with stakeholders.