Ask HN: What are your suggestions for a better landing page?

I've been doing research only on the landing page for 2 days. I made a lot of notes. Let me tell you 2 of the best methods I've learned.

1. Long landing pages are more advantageous than short landing pages. Because the more he/she knows about you, the more he/she trusts you.

2. Users do not read, they scan with their eyes.

3. ? 4. ? 5. ?