AkousaHTTP Status CodesError
520520 Web Server Returned an Unknown Error
Cloudflare received an unexpected or empty response from the origin server.
browserserver
View details 108 error codes tagged with "cloud-provider"
520Cloudflare received an unexpected or empty response from the origin server.
521The origin web server has refused the connection from Cloudflare.
522Cloudflare could not negotiate a TCP handshake with the origin server.
523Cloudflare could not reach the origin server, typically due to DNS issues.
524Cloudflare established a TCP connection but the origin server did not respond with an HTTP response in time.
525Cloudflare could not complete an SSL/TLS handshake with the origin server.
526Cloudflare could not validate the SSL certificate on the origin server.
527A Cloudflare Railgun connection error occurred between the Cloudflare edge and the Railgun listener.
AccessDeniedExceptionThe request was denied due to insufficient IAM permissions.
ThrottlingExceptionThe request was throttled due to exceeding the API rate limit.
TooManyRequestsExceptionToo many requests were sent in a given time period.
ResourceNotFoundExceptionThe specified AWS resource does not exist.
ValidationExceptionThe request parameters failed validation.
ServiceUnavailableExceptionThe AWS service is temporarily unavailable.
InternalServiceErrorAn internal error occurred in the AWS service.
NoSuchBucketThe specified S3 bucket does not exist.
NoSuchKeyThe specified object key does not exist in the S3 bucket.
InvalidBucketNameThe S3 bucket name is not valid.
S3 AccessDeniedAccess to the S3 bucket or object was denied.
BucketAlreadyExistsAn S3 bucket with the specified name already exists (globally).
SlowDownS3 is throttling requests due to excessive request rates.
Lambda Task timed outThe Lambda function exceeded its configured timeout.
Lambda Runtime.OutOfMemoryThe Lambda function ran out of memory.
Lambda Runtime.HandlerNotFoundLambda cannot find the specified handler function.