Bottom line: WordPress agencies running 50+ client sites need more than HTTP probes. A 200 from wp-admin can hide a broken login behind a cache or a security plugin lockout, and only a real browser session through wp-login.php catches it. Velprove is a solo-founder-built monitor with a free browser login monitor on every plan, 30-second HTTP intervals on Pro ($49/month), and 3 branded status pages on custom client domains. Free tier covers a 5-site pilot with no credit card. Your client's wp-admin returned a 200, but a real browser session through wp-login.php would have caught the failure. That gap is where agency monitoring lives or dies. If a CDN or page-cache layer strips the auth cookie, wp-admin can return a 200 from cache while the underlying request would actually redirect to wp-login.php. Your dashboard is green. Your client is locked out. Your account manager finds out from a Slack message that starts with "hey, quick question." The fix is not a faster ping.…