Lists.research.att.com underwent 2 uptime tests over 1 300 days starting on June 25, 2021, according to the report. Lists.research.att.com was reachable 2 times, according to availability tests, including on September 16, 2021, when a code 200 was received. Based on checks made as of January 16, 2025, lists.research.att.com did not experience any unavailability incidents. Records show that as of January 16, 2025, all received responses were free of error status codes. Lists.research.att.com's 0.001 seconds response time on September 16, 2021, differed from the average of 0.001 seconds.