Does Amex Platinum Charge Card earn 2 points per $ with booking.com or just through Amex Travel?

I noticed it’s 2 x points for travel - does this include online bookings on booking.com, or is it only 2 x when booked through the amex website? It’s in AUD not a foreign currency.

Thanks

The American Express Platinum Charge offers 2 points per dollar on any spend Amex identify as a travel provider - airlines and hotels primarily. This is for AUD or overseas transactions. I haven’t personally tested booking.com but I would assume this is a travel provider within the Amex system and would earn 2 points per dollar.