LMN Site Monitor

LMN Site Monitor is a lightweight WordPress monitoring plugin that keeps track of your websites and alerts you when something goes wrong. Monitor uptime, SSL certificate expiration, and response time directly from your WordPress dashboard — no external SaaS required. Main Key features

• Uptime monitoring (HTTP/HTTPS) with configurable intervals.
• SSL certificate expiration checks with full SNI support.
• Domain expiry notifications.
• Response latency tracking with full history stored in a dedicated database table.
• Performance charts (bar, line, donut) powered by self-hosted Chart.js — no external CDN.
• Statistics modal with per-site avg / min / max response time and uptime %; CSV and PDF export.
• Automatic retry after downtime to avoid false positives.
• Instant HTML email alerts (with automatic dark mode support).
• Dashboard widget with customizable monitor limits.
• CSV export/import of monitored sites.
• Fully translatable (16 languages) and optimized for modern PHP environments.

LMN Site Monitor is designed to be fast, accessible, and WordPress-native — giving you essential monitoring tools without unnecessary complexity. Learn more at LMN Site Monitor official page: https://lumina.fmkr.net/site-monitor/