Can Grid Dip Oscillator (GDO) detect WiFi, Bluetooth and NFC?
No, a grid-dip oscillator is fundamentally a signal generator, not a signal detector. It is used to measure the characteristics of passive circuits such as RF tanks and and antennas, by measuring how they absorb energy at various frequencies.

What you're looking for would be a frequency counter that has an antenna connected to its input. The display will show the frequency of the strongest signal that the antenna is picking up.