Starting on January 5, 2021, and lasting for 1 973 days, 182 times, cppreference.com was inspected for availability. Of total assessments conducted, cppreference.com was available 181 times, most recently on May 20, 2026, shown by a 200 status code. Tests conducted as of June 1, 2026, found no instances of cppreference.com becoming inoperable. The occurrence of the latest error, labeled as code 403, was noted on May 5, 2026, within the 1 error responses. On May 20, 2026, cppreference.com had a response time of 0.053 seconds, with an average of 2.239 seconds.