Use titles, descriptions, canonicals, Open Graph tags and JSON-LD with better judgment so the HTML gives search engines and sharing platforms a cleaner picture of the page.
Start with what every real page should already get right.
A page needs a specific, useful title and a description written for humans, not just for keywords.
A canonical URL helps clarify which URL should be treated as the main version when duplicates or close variants exist.
Search and sharing both benefit from a clearer description of the page.
Open Graph and similar tags help platforms build better preview cards when the page is shared.
JSON-LD can provide a more explicit semantic model when it matches what the visible page actually contains.