Website Uptime Monitor - Status, Response Time & SSL

✅ Tested daily with its default input (Apify's automated QA plus our own smoke test before every release).

Website uptime monitor: check whether your websites are up: HTTP status code, response time, final URL after redirects, SSL certificate expiry (days left) and whether a keyword appears on the page. Run it on an Apify Schedule every 5-60 minutes and connect webhook, Slack, email or Zapier/Make integrations for alerts. $0.002 per URL check.

Why this Actor

• $0.002 per URL check – 5× cheaper than comparable monitors.
• SSL expiry warnings before your certificate breaks your site.
• Keyword check catches "200 OK but broken page" errors.
• alertOnly mode outputs only problems (down sites or SSL < 14 days).

Input

urls (list), expectStatus (default 200), keyword (optional), timeoutSecs (default 20), alertOnly (default false).

Output

{"url": "https://example.com", "up": true, "status": 200, "responseMs": 143, "finalUrl": "https://example.com/", "sslExpires": "2027-01-15T23:59:59+00:00", "sslDaysLeft": 86, "keywordFound": null}

Key-value store OUTPUT: {"checked": 2, "down": [], "allUp": true} – easy to use in alerts.

Pricing

$0.002 per URL checked.

Use with AI agents (MCP)

This Actor can be used as a tool by AI agents (Claude, Cursor, VS Code, other MCP clients) through the official Apify MCP server:

• Add only this Actor as a tool: https://mcp.apify.com?tools=admirala/website-uptime-ssl-monitor (sign in with OAuth or an Apify API token).
• Or connect https://mcp.apify.com and let the agent find it with search-actors (e.g. "uptime monitor"), read the input schema with fetch-actor-details and run it with call-actor.

Example input an agent can pass:

{
  "urls": [
    "https://example.com"
  ],
  "keyword": "Example Domain",
  "alertOnly": false
}

Cost per call: $0.002 per URL checked. Results come back as dataset items (get-dataset-items).

FAQ

How do I check if a website is down? Add the URL to urls. Each row has up, status and responseMs; the OUTPUT record lists down sites.

Can it monitor every 5 minutes? Yes, attach an Apify Schedule (cron) and an integration for notifications. Each check costs $0.002 per URL.

Can it detect a broken page that still returns 200? Yes, set keyword to text that must be on the page.

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• Security Headers Checker - Bulk HSTS, CSP Audit (A+ to F) (coming soon to Apify Store)
• Tech Stack Detector - BuiltWith & Wappalyzer Alternative
• Broken Link Checker - Find 404s & Redirects (Crawl or List) (coming soon to Apify Store)