Open RSS feeds not working in Feedbin

Resolved

Feed requests from the Feedbin RSS reader are hogging servers and resources, causing the Open RSS service to be significantly slow for other users. To preserve resources, requests from the reader are being blocked. As a result, its users are unable to add new Open RSS feeds to the application.

Requests from Feedbin are extraordinarily exceeding our rate limits and failing to adjust the frequency of requests according to the response headers given per guidelines when requesting feed content.

Our server is responding to Feedbin's requests with 429 Too Many Requests along with a Retry-After header that recommends the amount of seconds to wait before making a subsequent request to the same feed URL. But the application is failing to adjust the frequency of requests based on this information.

Below is an example from our logs showing a series of ~33 requests made from the Feedbin user agent in just 5 minutes, all of which have received a 429 Too Many Requests response.

Screenshot of request logs showing Feedbin requests all with 429 response code