Updating failed. The response is not a valid JSON response

Hello,

I’m sorry to hear that you are facing an issue with updating your meta SEO title and description, and you are receiving the error message “Updating failed. The response is not a valid JSON response.” This error can occur due to various reasons, including plugin conflicts or JavaScript-related errors.

Here are some steps you can take to troubleshoot this issue:

1. Plugin Conflicts: Plugin conflicts can sometimes prevent the SEO title and description from being saved. You can follow our guide on checking for plugin conflicts to identify and resolve any conflicts.

2. JavaScript-Related Errors: JavaScript errors can also cause issues while saving your SEO title and description. You can diagnose JavaScript-related errors by following the steps outlined in this WordPress guide.

If you have already checked for plugin conflicts and JavaScript errors but are still facing the issue, please ensure that your meta descriptions and titles are within the recommended character limits and that you are using supported emojis if applicable.

If the issue persists after following these steps, please feel free to reply to this ticket, and a human agent from the Rank Math Support team will assist you further.

Thank you for reaching out with your concern.

Sources:
Why Your SEO Title, Description & Focus Keyword Aren’t Being Saved » Rank Math
How to Use Emojis in SEO Titles and Meta Descriptions » Rank Math
How to Update SEO Score When N/A is Showing » Rank Math
Google Shows A Different Meta Title/Description For My Site » Rank Math

Hello,

Thank you for your query and we are so sorry about the trouble this must have caused.

Could you please share the affected URL/s so we can check on our end as well?

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.

Hello,

Please try to reconnect your website with your Rank Math account by navigating to WordPress Dashboard → Rank Math SEO → Dashboard → Help and then click on Connect Now.

Once you click on Connect Now, please ensure that you’ve selected the correct account and then click on OK, Activate Now, as shown below. In case you’ve multiple Rank Math licenses associated with your Rank Math account, then you can click the License drop-down to choose your preferred license to activate on this website.

Also, please make sure that you are running the latest version of Rank Math plugin.

Let us know if this fixes the issue.

Please do not hesitate to let us know if this doesn’t help or you have any followup queries.