Detect Content Changes & Defacement
in Milliseconds
Monitor keyword presence/absence on web pages with HTTP body scanning. Track critical content, detect unauthorized changes, defacement attacks, and injection attempts. Case-sensitive matching and JS-rendered content support (beta).
Join 500+ engineering teams monitoring with AtomPing
Smart Content Monitoring
Beyond uptime—ensure your content is correct
Presence Detection
Alert when required text is MISSING. Perfect for critical messages, CTAs, or security notices.
Absence Detection
Alert when unwanted text APPEARS. Detect defacements, errors, or unauthorized content immediately.
Defacement Protection
Monitor for hacker messages, SQL errors, or '404 Not Found' text that shouldn't be there.
Multiple Keywords
Track multiple phrases per page. Ensure all critical elements are present and correct.
Frequent Checks
1-minute intervals on Pro plan. Catch content issues within minutes of occurrence.
Multi-Region Validation
Verify content from 25+ locations. Detect CDN or geo-targeting content issues.
Start Keyword Monitoring
Set up content monitoring in 3 steps
Enter Page URL
Specify the web page to monitor (e.g., https://example.com/pricing).
Define Keywords
Enter keywords that MUST be present (or must NOT be present). Case-sensitive option available.
Get Alerts
Receive instant notifications when keywords appear, disappear, or page content changes unexpectedly.
Who Uses Keyword Monitoring?
Protect your content and brand reputation
Security Teams
Detect website defacements, SQL injection errors, and hacker messages before users see them.
E-commerce Sites
Ensure 'Add to Cart' buttons, pricing, and checkout flows display correctly. Prevent lost sales.
Marketing Teams
Verify campaign landing pages display correct offers, CTAs, and promotional content.
Developers
Monitor for error messages ('Error', '500', 'Exception') in production. Catch bugs early.
Keyword Monitoring FAQ
Common questions about content monitoring
Presence = alert when text is MISSING (e.g., your CTA disappears). Absence = alert when text APPEARS (e.g., 'Error' shows up). You choose which behavior per keyword.
You can choose! Enable case-sensitive matching for exact matches (e.g., 'API' vs 'api') or disable for flexible matching.
Yes! Each monitor can track multiple keywords. All keywords must pass checks for the monitor to be considered 'up'.
Basic keyword monitoring checks initial HTML. For JS-rendered content (React, Vue, Angular), we can render pages with headless Chrome (contact us for beta access).
Free plan: every 5 minutes. Pro: every 1 minute. Business/Enterprise: every 1 minute for rapid content change detection.
Yes! Use custom headers, Bearer tokens, or Basic Auth to access protected pages. Same authentication options as HTTP monitoring.
Monitoring for error messages: create keywords 'error', '500', 'exception', 'fatal' in absence mode. Get alerted if any appear in your HTML.
Start Monitoring Your Content Today
Detect content changes, defacements, and ensure critical text appears correctly. Free forever plan with 50 monitors.
Free forever plan available • No credit card required • Cancel anytime
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