Reviews and testimonies from your existing clients are extremely important for your business. People can write reviews for you whether you are selling products and/or services. The testimonials and reviews are solid evidence that you not only have those products and/or services to offer but that they are effective and valuable as well.
Posting testimonials from your clients is an excellent way to build your professional credibility. You should bear in mind that you are the only person who cannot increase your credibility.
You have a web presence but you don’t have testimonials from satisfied clients. Without testimonials, which are a great part of your credibility, people will be reluctant to interact with you and will certainly be reluctant to buy from you.