About
Watchling — Website & Server Monitor
A TESS Product

Monitor Everything. Miss Nothing.

Real-time website, server, and API monitoring. Get instant alerts when something goes down. Start free with no credit card — built and maintained by TESS.

Core Monitoring

The Only Monitor You'll Ever Need

HTTP Monitoring

Monitor any website or URL. Track HTTP status codes, response times, SSL certificates, and content changes in real-time.

Server Monitoring

Keep tabs on your servers with ping checks, port monitoring, CPU load tracking, disk usage alerts, and log file monitoring.

API Monitoring

Validate your API endpoints with multi-method support, custom headers, JSON response assertions, and status code verification.

Multi-Channel Notifications

Send alerts via Email, Slack, Discord, SMS, or WhatsApp. Organize contacts into groups and configure per-monitor notification rules.

SSL Monitoring

Track SSL certificate expiry dates and get notified before certificates expire and cause downtime.

Content Monitoring

Detect unexpected changes to your web pages. Get alerted when content is modified or defaced.

How It Works

Up and Running in Minutes

1

Create Your Account

Sign up for free — no credit card needed. Get started instantly with our generous free tier.

2

Add Your Monitors

Add websites, servers, or API endpoints. Configure check intervals, thresholds, and alert preferences.

3

Get Instant Alerts

Receive immediate notifications the moment something goes wrong via Discord, webhooks, or any channel.

Advanced Features

Enterprise-Grade Capabilities

Response Time Tracking

Monitor response times and identify performance degradation before it impacts your users.

Log Monitoring

Track server log files for errors and anomalies. Get notified when new errors appear in your logs.

Get Started

Join Teams Who Trust Watchling

Keep your infrastructure running 24/7 with the #1 free uptime monitor — built by the engineering team at TESS.

Built & Maintained by TESS