nist.gov

Data analysis indicates that 453 uptime tests were performed for nist.gov in the 1 763 days that followed January 31, 2021. In response, on November 22, 2025, nist.gov, which has been operational for 453 times during all conducted checks, returned a code 200. Reviews conducted as of November 29, 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 November 29, 2025. Nist.gov's 1.016 seconds reply on November 22, 2025, contrasted its 0.828 seconds average response time.