Hello,
We apologize for the issue you are facing with minifying JavaScript. Minifying JavaScript can sometimes lead to complications, including breaking parts of your website. Here are a few suggestions you might consider:
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Caching Plugins: If you haven’t already, try using a caching plugin like WP Rocket, which supports JavaScript modification. Make sure to configure it properly to minify your JavaScript files.
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Online Tools: While you’ve mentioned using a tool like Minifier, you could also try other online tools such as Javascript Minifier to see if they yield better results.
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Testing Environment: It’s crucial to test any changes in a staging environment before applying them to your live site. This way, you can ensure that everything works correctly without affecting your users.
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Ignore Warnings: If the minification is causing issues, you may choose to ignore the minifying JavaScript warning, as it can sometimes be more trouble than it’s worth.
If these suggestions do not resolve your issue, please reply to this ticket, and a human agent from the Rank Math Support team will take over and assist you further.
Thank you for raising this concern!
Sources:
Analyzing Your Site’s SEO with Rank Math’s SEO Analysis Tool
Hi! I’ve also tried the WP Super Minify plugin, but the error message under SEO Analyzer is stands for both Javascript and CSS. Anything else I can do perhaps?
Hello,
If you’re still seeing that failed test, head over to Rank Math > Status & Tools > Database Tools > and click the Clear SEO Analysis and Remove Transients buttons to flush the SEO Analysis cache

Once done, clear your website and any server-level caching on your site before doing the Sitewide analysis again.
Looking forward to helping you.
Hi,
It didn’t help – what’s my next step?
Cheers!
Hello,
We noticed you have multiple optimization plugins on your site whose functions might overlap, making some functions ineffective.
We have seen instances where plugins that modify the administrator styles and JS to perform their tasks interfere with our plugin functionalities.
To determine that, please follow this troubleshooting guide:
https://rankmath.com/kb/check-plugin-conflicts/
Let us know how this goes. Also, let us know if you have further questions or concerns.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.