Hello,
We apologize for the issue you are facing with the Rank Math plugin. It sounds like there may be a conflict with your theme or another plugin that is affecting the title of your website when Rank Math is activated.
Here are a few steps you can take to troubleshoot this issue:
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Check Your Theme Settings: Sometimes, themes have their own settings for titles and meta descriptions. Go to Appearance → Themes and ensure that your theme is set up correctly.
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Disable Other Plugins: There might be a conflict with another plugin. Try deactivating all other plugins except Rank Math and see if the issue persists. If the title returns to normal, reactivate the plugins one by one to identify the conflicting plugin.
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Check Rank Math Settings: Ensure that you have set the SEO title correctly in Rank Math. You can do this by editing your homepage or any page where the title is incorrect and checking the Rank Math meta box for the SEO title settings.
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Review Custom Code: If you have added any custom code to your theme or site, it might be affecting the title output. Review any custom functions or filters that might be altering the title.
If you continue to experience issues after trying these steps, please reply to this ticket with your website URL so we can assist you further. A human agent from our support team will take over and provide more specific guidance.
Thank you for raising this concern!
Sources:
How to Fix Duplicate Meta Tags » Rank Math
https://matis.cc/
I’ve already tried the solutions provided by AI, but the issue still isn’t resolved.
Hello,
In this case, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.