In our recent webinar on combining front-end and back-end testing, Chief Technology Evangelist Michael Sage and BlazeMeter's VP of Customer Success Ophir Prusak discussed the importance of performance vs. front-end testing, providing step-by-step instructions for getting real-world results from front-end tests while applying load to the back-end, as well as critical issues to consider in performance testing. They also demonstrated a real-world test using JMeter and Selenium, highlighting the scalability advantages of JMeter over Selenium for large-scale testing. Additionally, they addressed common questions about running tests behind firewalls, emphasizing the use of utility tools like Sauce Connect and BlazeMeter's agent to enable secure testing without compromising network security.