Records show that in the 1 293 days since June 28, 2021, www-unix.mcs.anl.gov underwent 4 availability checks. Through 3 operational instances across all conducted checks, www-unix.mcs.anl.gov affirmed its latest uptime on June 28, 2021, by returning a code 200. No instances of www-unix.mcs.anl.gov being inaccessible were observed during all the tests conducted as of January 11, 2025. The latest error response, with code 403, out of the 1 errors recorded, occurred on January 8, 2025. The response from www-unix.mcs.anl.gov on January 8, 2025, was received in 3.473 seconds, compared to an average of 2.502 seconds.