Uptime Checker

Zero-dependency URL uptime checker with response time monitoring, history tracking, and multi-URL support.

Quick Start

# Check a single URL
python3 scripts/uptime_check.py https://example.com

# Check multiple URLs
python3 scripts/uptime_check.py https://api.example.com https://example.com https://status.example.com

# JSON output for scripting
python3 scripts/uptime_check.py https://example.com --format json

# Check with custom expected status
python3 scripts/uptime_check.py https://example.com/old-page --expected-status 301

# Load URLs from file
python3 scripts/uptime_check.py --urls-file urls.txt

# Save results and view history
python3 scripts/uptime_check.py https://example.com --save --history-file checks.json
python3 scripts/uptime_check.py --history --history-file checks.json

# Skip SSL verification (self-signed certs)
python3 scripts/uptime_check.py https://internal.example.com --no-verify-ssl

# Custom timeout and method
python3 scripts/uptime_check.py https://example.com --timeout 5 --method HEAD

# Add custom headers (auth, etc.)
python3 scripts/uptime_check.py https://api.example.com --header "Authorization:Bearer token123"

Features

• Check single or multiple URLs in one command
• Response time measurement in milliseconds
• SSL certificate validation
• Redirect detection and following
• History tracking with uptime percentage summaries
• Configurable expected HTTP status codes
• Custom headers, methods, and timeouts
• JSON and text output formats
• Exit code 1 if any endpoint is down (for scripting/cron)
• No external dependencies — pure Python stdlib