Records show sibur.ru's operability was checked 19 times from June 25, 2021, through the subsequent 1 587 days. Confirming operability 18 times total, sibur.ru most recently returned a 200 status code on September 2, 2025, according to tests conducted. No instances of sibur.ru being down occurred during the inspections that were conducted as of October 29, 2025. The error response coded 403, the most recent out of the 1 responses that contained errors, was noted on August 22, 2025. Sibur.ru's September 2, 2025, response time, 4.306 seconds, differed from the 1.267 seconds average.