blacklist scanning for IP addresses and hostnames against numerous external databases. Users can configure alert thresholds and receive notifications via email, SMS or text messages, and HTTP GET or POST webhooks. The platform is designed for bloggers, webmasters, and online businesses that need early detection of outages and visibility into domain and server status. NoMore404 operates on a freemium model with free plans and paid subscription tiers that expand the number of monitors and available features.