VisualCV's analytics dashboard lets you know when your resume is viewed or downloaded. If you sent a PDF, it will track click-throughs. If you sent a specific resume to an employers (and you should have), you can then view if and when they viewed it.
For your online resume, it is also useful to view the breakdown of traffic - whether it's from search, social media, or your email signature - it is useful to have a variety of traffic sources.
By now, you should have the following in your career toolkit:
Thanks for following along with us. We are excited to help you get one step closer to landing a job you love. Please reach out anytime with questions, we are here to help.