Most monitoring tools ping your URL and check for 200 OK. That tells you your server responds, not that your site works. Velprove launches a real browser, fills in credentials, clicks submit, and verifies login succeeds. If your login breaks silently, you know in minutes. Free: 10 monitors, 1 browser login monitor, email alerts. No credit card. Also includes API monitoring with response validation, multi-step workflows, and SSL monitoring.