Jongkind Substrates from Aalsmeer has been in existence since 1908 and supplies high-quality substrates, clay granules and other raw materials to professional horticulture. For Jongkind Substrates (formerly Jongkind Grond), we optimised the website for search engines such as Google and Bing on behalf of Jongkind IIS. The findability and visitor numbers have increased considerably since the adjustments.