Content Verification

Keyword Monitoring Verify What Matters

Ensure critical content exists on your client sites—or detect unwanted text like error messages, defacements, or broken deployments.

Keyword Monitoring

3/10

Monitoring 3 keywords on this page.

Searching in: Visible Text

Configured Keywords

"Add to Cart"

Must contain

Case insensitive

Required

"Free Shipping on Orders Over $50"

Must contain

Case insensitive

Required

"500 Internal Server Error"

Must not contain

Case insensitive

Forbidden

Why Keyword Monitoring?

Catch what uptime checks miss

A site can be “up” but completely broken—showing error pages, missing critical content, or displaying unwanted text after a bad deploy. Keyword monitoring catches what uptime checks miss.

Verify important content is present on each page
Detect error messages and broken deployments
Monitor up to 10 keywords per check

Keywords per Monitor

Check Modes

24/7

Content Scanning

Missed Issues

Features

Catch what uptime checks miss

Presence Detection

Verify that critical text like 'Add to Cart', pricing, or product names exists on each page.

Absence Detection

Alert when unwanted text appears—error messages, stack traces, 'under maintenance', or defacement content.

10 Keywords Per Monitor

Check for up to 10 different keywords on each monitored page. Mix presence and absence checks as needed.

Deployment Verification

After a deploy, automatically verify that key content is still rendering correctly. Catch broken builds fast.

Instant Alerts

Get notified via email, SMS, Slack, or webhooks when a keyword check fails. Know about broken content immediately.

Incident Tracking

Keyword failures create full incidents with timestamps, details, and history—just like downtime events.

FAQ

Keyword monitoring questions

How many keywords can I check on a single page?

Keyword monitoring checks up to 10 keywords per monitor. You can use each keyword to confirm that text is present or to confirm that unwanted text is absent.

What can keyword monitoring detect that uptime checks cannot?

A site can return a healthy status while showing an error page, missing content, or a broken deploy. Keyword monitoring verifies the actual page content rather than just whether the server responds.

Can I get alerted when unwanted text appears?

Yes. You can configure keywords for absence so Sentinel alerts you when text such as an error message or maintenance notice shows up unexpectedly.

How will I be notified if a keyword check fails?

Sentinel sends alerts via email, SMS, Slack, Discord, and webhooks the moment a keyword check fails, so the right person knows immediately.

Does keyword monitoring work with other check types?

Yes. Keyword monitoring runs as a sub-check of HTTP uptime monitoring, and the same site can also have SSL certificate, DNS, domain expiration, JSON/API response assertion, ICMP ping, TCP port or heartbeat/cron monitors alongside it.

Is there a free trial?

Yes. Paid plans include a 14-day free trial, there is also a free plan, and you can cancel anytime.

Go beyond uptime checks

Stop shipping broken pages to clients

Add keyword monitoring to catch content issues before your clients notice. 14-day free trial, cancel anytime.

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14-day free trial

No credit card required

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