In the period of 1 131 days starting on November 7, 2021, analysis indicates phys4.harvard.edu underwent 2 accessibility tests. Out of every check done, phys4.harvard.edu was accessible 1 times, with the November 7, 2021, check returning a 200 status response. According to assessments completed as of December 13, 2024, there were no periods of inoperability for phys4.harvard.edu. Code 400 represented the latest error among the 1 error responses, observed on November 18, 2024. Records indicate a 0.046 seconds phys4.harvard.edu response time on November 18, 2024, compared to 0.663 seconds on average.