nist.gov

Data analysis indicates that 454 uptime tests were performed for nist.gov in the 1 777 days that followed January 31, 2021. In response, on December 8, 2025, nist.gov, which has been operational for 454 times during all conducted checks, returned a code 200. Reviews conducted as of December 13, 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 December 13, 2025. Nist.gov's 1.044 seconds reply on December 8, 2025, contrasted its 0.829 seconds average response time.