# ismysiteup

> Free website & API uptime monitoring with instant alerts via email, Telegram, WhatsApp, and Slack. Includes SSL-certificate and domain-name expiry monitoring, response-time tracking, incident history, a free instant URL checker, and a built-in Postman-like API client with scheduled endpoint tests, data monitors, and an AI assistant.

ismysiteup monitors your websites and APIs 24/7 and sends you instant notifications when they go down. Features include HTTP monitoring, SSL certificate checks, domain-name (WHOIS/RDAP) expiry warnings, response time tracking, and incident history. Check intervals range from every 5 seconds to every 12 hours. It also ships a developer toolkit: an API client, scheduled endpoint tests, data monitors that watch a field in a JSON response, API keys, and a REST API.

## Plans

- **Free**: 5 monitors, 5-min intervals, 5 emails/day
- **Starter** ($2.99/mo): 10 monitors, 2-min intervals, 20 emails/day
- **Pro** ($4.99/mo): 20 monitors, 30-sec intervals, 40 emails/day
- **Premium** ($9.99/mo): 30 monitors, 5-sec intervals, 80 emails/day

## Features

- Website uptime monitoring (HTTP/HTTPS)
- SSL certificate expiry monitoring
- Domain-name (WHOIS/RDAP) expiry monitoring with advance warnings
- Email, Telegram, WhatsApp, and Slack alerts
- Response time tracking with sparkline charts
- Incident timeline and history
- Check intervals from 5 seconds to 12 hours
- Import/export monitors (JSON)
- Manual URL health checks
- Dark/light mode
- Custom SMTP server support
- Multi-channel notification alerts
- Built-in API Client (Postman-like): projects, folders, environments, request history
- Scheduled Endpoint Tests with assertions
- Data Monitors: watch a field in an API's JSON response and alert on change/threshold
- AI assistant (bring your own ChatGPT / Claude / Gemini key) that builds requests, explains responses, fixes errors, and creates tests and monitors from plain language
- REST API with API keys for managing monitors and reading incidents programmatically

## Use Cases

- Monitor e-commerce stores for uptime
- Track API endpoint availability
- SSL certificate expiry warnings
- SaaS product health checks
- WordPress, Shopify, and Vercel site monitoring
- DevOps incident tracking

## Developers

- API documentation: https://ismysiteup.net/docs/api
- Machine-readable capabilities (JSON for AI tools & integrations): https://ismysiteup.net/api/v1/ai/context
- Authentication: create an API key under DevTools → API Keys, then send `Authorization: Bearer imsu_xxx`
- Example: `GET https://ismysiteup.net/api/v1/dev/monitors` lists your monitors

## Links

- Homepage: https://ismysiteup.net
- Sign Up: https://ismysiteup.net/signup
- Blog: https://ismysiteup.net/blog
- Pricing: https://ismysiteup.net/#pricing
- Privacy Policy: https://ismysiteup.net/privacy
- Terms of Service: https://ismysiteup.net/terms
- Contact: contact@ismysiteup.net