I bought a bottle of liquor online and it has no trademark, so it is fake.

Wine that is counterfeited from another brand is considered fake wine, but without a label, there is no counterfeiting of another brand. In addition, wine is a mixture of water, alcohol and various lipid substances. Some unscrupulous merchants use other ingredients or even methanol to blend wine, which violates the definition of wine and is considered fake wine. Therefore, wine without labels may be fake wine, or it may not be considered fake wine. It mainly depends on the quality of the wine itself.