How do you measure the efficacy of your recruiting strategies and what can you do to improve results?

Firstly, I analyze my performance by measuring the number of quality hiring done by me. Then to get feedback, I prepare a survey and send it to the older candidates who have worked with me. In the survey, my main concern would be to measure the satisfaction level of the candidates and clients. Feedback is important for any employee and I take my feedback very positively and see it as a chance to grow and improve my hiring process.