The operability of info21c.net has been tested 3 times over the course of the 1 178 days that followed September 9, 2021. Out of total checks performed, info21c.net was online 3 times, last confirmed by a 200 status response on February 22, 2023. Reviews conducted as of November 30, 2024, revealed that info21c.net did not experience any instances of unavailability. It was confirmed that there were no responses with error status as a result of the replies received as of November 30, 2024. At 2.278 seconds, info21c.net's February 22, 2023, response time differed from its 2.562 seconds average.