The four-stage canary for broken contact forms

Field notes

The service separates a contact-form check into four stages rather than treating a successful page load as proof of delivery. Its example records a 200 response in 412 ms, identifies a specific Contact Form 7 instance, submits once, and reports inbox receipt 41 seconds later. The page says the inbox check uses a 15-minute window and that test messages carry a visible marker. Continuous monitoring is presented with a 14-day trial, while the initial page scan is read-only.