Set Up Robots.txt Change Alerts
Watch the text of a robots.txt file for changes to published crawler rules. This setup monitors that file only. It does not inspect an HTML page's hidden meta tags, test Google indexing, or guarantee that every crawler obeys the rules.
Set Up Robots.txt Change Alerts
Watch published crawler rules for changes, then review their effect on your site.
1Paste the robots.txt URL→
2Choose the rules that matter→
3Review and save the scheduled monitor
Use the site's robots.txt URL. HTML metadata needs a separate SEO Tags monitor.
Related checks:
Our AI reads every change and only alerts you when this happens, so routine updates never reach your inbox. Edit it to fit what you care about.
On the next check after a change, or batched into one digest email.
Under 1 hour requires a paid plan
Read the full guide
This form sets up the monitor. The guide covers which pages to monitor, the setup step by step, and how to get fewer, better alerts.
Indexability Regression Alerts: Catch Accidental noindex, robots.txt Disallow, and Canonical Changes Catch accidental noindex, robots.txt Disallow rules and canonical drift before traffic falls: monitor all four indexability signals and diff every deploy. Read the guideFrequently asked questions
What does the robots.txt monitor check?
It compares the text returned by the robots.txt URL you choose. Focus instructions can highlight changes to User-agent, Allow, Disallow, or Sitemap rules. Review the first capture before relying on alerts.
How do I watch noindex and canonical tags?
Create a separate SEO Tags monitor for the HTML page. Those tags are part of the page response, not the robots.txt file. Use the SEO tag setup tool linked below.
Does an alert prove Google stopped indexing the page?
No. An alert records a rule change. Check its scope and use Google Search Console to investigate crawling and indexing. Notifications follow scheduled checks and your saved delivery settings.
Monitor any web page for changes
PageCrawl watches any page and alerts you when a check finds something important changed. Set up your first monitor in under a minute.
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