We have developed from scratch a medical service for representation online of the Family Genetics Center FG Lab. Due to the specifics of the task, the work was carried out in several stages: from creating a simple business card site to a full-fledged online service for consumers and medical specialists. We have not only developed the website, but also have solved the client’s business task - to attract visitors from the first days of cooperation with us. The phased development of the project allowed FG Lab work actively with clients without any pauses. Moreover, a well-thought-out subscription tool allowed users to monitor site updates and motivated them to return to service again and again.