On-page SEO refers to improvements made directly to the website. This may include page content, headings, metadata, internal linking, page structure, keyword relevance, user experience and technical elements.
Off-page SEO refers to external signals that influence the authority and credibility of the website. These may include backlinks, digital PR, brand mentions and references from relevant third-party websites.
Both areas are important. On-page SEO helps search engines understand the website, while off-page SEO helps demonstrate authority and trust.