The availability of o-calc.com has been tested 2 times between March 10, 2021, and the present, a span of 1 355 days. Of all the checks attempted, o-calc.com was up 2 times, the last instance being on March 17, 2021, with a code 200 response. According to inspections done as of November 25, 2024, there were no instances of o-calc.com's unavailability. All the replies received confirm that as of November 25, 2024, there was no reply with an error status. O-calc.com's response time was 1.577 seconds on March 17, 2021, while the average response time is 0.837 seconds.