33 checks have been made on the availability of sinref.ru within the last 2 046 days, beginning on April 21, 2019. Sinref.ru, with 31 instances of operability out of all conducted checks, reported its last uptime on November 21, 2024, confirmed by a code 200 response. According to tests, as of November 27, 2024, there were no incidents of inoperability for sinref.ru. Code 503, the latest error recorded on April 8, 2023, was observed within the 2 responses that had errors. Responding in 0.434 seconds, sinref.ru's recorded time on November 21, 2024, differed from its 0.439 seconds average response.