If one has used a LinkedIn profile optimization service, it is recommended to update one's profile when gaining new skills, certification, work experience, or accomplishments. Updating one's profile regularly will allow recruiters to get to know about your last accomplishments and will raise your chances to be found by them during the search. Even if you do not intend to search for a job at the moment, it will demonstrate your professional activity. It is essential to keep your profile updated regardless of whether you have used a LinkedIn profile optimization service or not.