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Content Type

What you see when your domain has this problem
Content-Type is not text/plain Details area Ignore
Add robotsai monitor for 85.105.73.200

More Information About Content Type

Per RFC 9309, robots.txt should be served with a Content-Type of text/plain. Other types may still parse but reduce interoperability with stricter crawlers.

MxToolbox Delivery Center

This is one problem. Inbox providers check every layer.

Gmail, Yahoo! and Outlook check your email at several layers before it reaches the inbox. Delivery Center monitors and manages every one of them, so you find and fix problems before they cost you delivery.

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  • Email MarketersTest inbox placement and stay inside bulk sender spam-rate limits.
  • DMARC AdoptersSee every sender and know when it's safe to enforce.
  • IT Email AdministratorsCatch DNS, authentication and mailflow changes with alerts.
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