With rich preview, you have three choices: Preview is generated on sender side, preview is generated on client side or preview is generated on some server. On

With rich preview, you have three choices: Preview is generated on sender side, preview is generated on client side or preview is generated on some server. On a "secure" system as Whatsapp is advertised as, you'll notice only the second choice is "secure" and possible, since otherwise you'll disclose both your IP and lots of other things, like location (from IP).