More : https://blog.chartmogul.com/saas-landing-pages-2017-analysis/

1. Headline

• Should grab the user’s attention.
• Should tell the reader what the product does.
• Shouldn’t be more than 10 characters long (especially if there’s also an image).

2. Persuasive subtitle

If the headline makes the user look, the subtitle should make him stay.

• Should be positionned under the headline.
• Should have elements of persuasiveness.
• Should go into slightly more details than the headline.
• Could be a phrase, but no longer than a small paragraph.

3. Pictures

The brain processes images 60,000 times faster than text, thus visitors are affected by images immediately when they land on the page.

• The picture should be relevant to the product/service.
• Should grab attention, demonstrate relevance to the visitor.