nist.gov

Data analysis indicates that 449 uptime tests were performed for nist.gov in the 1 692 days that followed January 31, 2021. In response, on September 5, 2025, nist.gov, which has been operational for 449 times during all conducted checks, returned a code 200. Reviews conducted as of September 19, 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 September 19, 2025. Nist.gov's 1.047 seconds reply on September 5, 2025, contrasted its 0.827 seconds average response time.