Website Monitor

---

name: website-monitor

description: Lightweight website uptime monitor. Check if URLs are up, measure response times, detect content changes via hashing, and verify expected content. Zero dependencies.

triggers:

- check website

- is site up

- monitor url

- website status

- uptime check

- ping website

---

# Website Monitor

A zero-dependency Python tool for checking website availability, measuring response times, and detecting content changes. Uses only Python's standard library (urllib) — no requests, no aiohttp, no external packages.

Features

Usage Examples

Simple uptime check:

python main.py https://example.com
# ✅ https://example.com
#    Status: 200
#    Response: 142ms
#    Size: 1256 bytes
#    Hash: fb91d75a6bb43078

Check multiple sites at once:

python main.py example.com google.com github.com

Detect content changes (compare against a previous hash):

python main.py https://example.com --hash-check fb91d75a6bb43078
# Shows "Changed: YES ⚠️" or "Changed: No"

Verify a page contains expected text:

python main.py https://status.example.com --contains "All Systems Operational"

Expect a specific status code (e.g., redirect):

python main.py https://old.example.com --expect 301

JSON output for scripting:

python main.py example.com github.com --json | jq '.[] | select(.up == false)'

Use in a cron job or script:

python main.py https://mysite.com || echo "ALERT: Site is down!" | mail -s "Downtime Alert" admin@example.com

Command Line Options

Exit Codes