I used to check MFi product using mfi.apple.com/MFiWeb/getAPS provided by Apple. It looks like they have turned it off. I would like to know if there is any alternative available?
Search for accessories that have completed MFi certification
Once an accessory has completed MFi certification requirements and is reported to Apple as sold/distributed, it will be searchable in our public database of authorized Lightning, headset, charging, and iAP-based MFi accessories.