In the timespan of 2 213 days beginning January 9, 2019, data shows proto.io passed 9 accessibility tests. Proto.io was online 9 times from the complete assessments conducted, last active on January 13, 2025, responding with a 200 status code. Based on inspections made as of January 31, 2025, there were no instances of inoperability on proto.io. Based on the replies received, it is confirmed that there were no error responses as of January 31, 2025. Proto.io's reply time was 0.719 seconds on January 13, 2025, in contrast to an average of 0.812 seconds.