How Real-time Online Bidding Reliability is Calculated
The reliability percentage shown is based on the bids from the last 30 days. All bid failures are investigated to find the cause and prevent the failure from occurring again to improve reliability.
Bids that fail for reasons such as being outbid, having an invalid username or password or being blocked from bidding by the seller or by eBay are not counted as failures. Bids that fail due to not being placed before the auction end for users who have their account set to bid 4 seconds or less before the end are not counted in the reliability percentage as these settings are not recommended as they result in higher failure rates.