Starting on June 27, 2021, halley.cc's operability has been analyzed 3 times over the last 1 482 days. The uptime history of halley.cc includes 3 successful instances, the latest being on January 6, 2025, returning a code 200. As of July 18, 2025, there were no instances of halley.cc unavailability during inspections conducted. Every response that has been received as of July 18, 2025, suggests that there are no errors in any of them. Halley.cc responded in 1.748 seconds on January 6, 2025, which contrasted its 1.358 seconds average response time.