Velprove

Velprove provides comprehensive functional uptime monitoring, ensuring your website and APIs are not just 'up' but actually working as intended for your users. Unlike traditional monitoring tools that merely check for an HTTP 200 status, Velprove simulates real user interactions, such as logging into your site with a real Chromium browser. This allows it to catch critical issues like broken login forms, failed API calls, or silently dropped contact messages before your customers encounter them.

Key features include:

• Browser Login Monitors: Configure a login URL, username, and password, and Velprove will drive a real Chromium browser to sign in, verify the post-login page, and capture screenshots upon failure. This feature is available on every plan, including the free tier.
• HTTP and SSL Monitoring: Beyond basic status codes, Velprove checks response times and page content. For HTTPS sites, it actively tracks SSL certificate expiry, providing customizable alert thresholds from 1 to 90 days, preventing unexpected certificate-related downtime.
• API Checks: Send custom HTTP requests with specific headers and body content. Validate responses using JSON path assertions, ensuring your APIs return the correct data, not just a 200 status. It supports any HTTP method and endpoint, along with response timing assertions.
• Multi-step API Workflows: Build complex monitoring scenarios by chaining multiple API requests. Extract values from one step's response (e.g., an auth token) and pass them to subsequent steps. Each step can have its own response body, header, and timing validations, ensuring end-to-end API functionality.

Velprove operates from 5 global regions (North America, Europe, the UK, Asia, and Oceania) to detect regional outages that single-location tools might miss. It offers a generous free plan with 10 monitors, including one browser login monitor, with no credit card required. Alert channels include email on all plans, with Slack, Discord, Teams, Webhooks, and PagerDuty available on higher tiers. Detailed history is provided for 24 hours on the free plan, 7 days on Starter, and 30 days on Pro.