Data analysis indicates that 443 uptime tests were performed for nist.gov in the 1 522 days that followed January 31, 2021. In response, on April 1, 2025, nist.gov, which has been operational for 443 times during all conducted checks, returned a code 200. Reviews conducted as of April 2, 2025, revealed that nist.gov did not experience any instances of unavailability. No response with an error status was reported, as per replies received as of April 2, 2025. Nist.gov's 1.365 seconds reply on April 1, 2025, contrasted its 0.822 seconds average response time.