Landing pages need to stay tightly focused on conversion, which means related-term usage here has to support the core message rather than dilute it.
Use Related Terms to Reinforce, Not Distract From, the Offer
A related term should strengthen the reader's understanding of the offer, not pull their attention toward a tangential subtopic.
Keep the Primary Message Unmistakably Clear
Landing page copy has less room than a blog post to explore a topic's full breadth, so prioritize related terms that directly support the conversion goal.
Save Broader Related-Term Exploration for Supporting Content
A more thorough exploration of related concepts often belongs on a linked blog post or resource page rather than crowding the landing page itself.
Next step: Use the LSI Tool to find related terms that genuinely reinforce your landing page's core offer.