Instagram comment CTAs that do not leak your best offer

Posting the checkout URL in a public reply is free advertising for competitors.

Pattern

Caption asks for a keyword. Match fires a private DM. The DM holds the tracked link.

Comments stay public (social proof). Offer stays private.

Bonus

You can meter DMs, swap destinations per campaign, and read click rates without scraping the thread.

Tool

HitDM — comment keyword → one private DM + tracked link.