Hello, I’m sorry to hear that you’re facing issues with adding a period (“.”) in the permalink used in the SEO snippet. The period is a special character and is not allowed in the URL structure. However, you can use hyphens or underscores to separate words in the URL. This is a common practice for SEO-friendly URLs.
If you need to update the settings for the permalink structure, you can do so by going to the Settings → Permalinks menu in your WordPress dashboard. From there, you can select the “Post Name” option to create SEO-friendly URLs.
Here’s an example of how to change the permalink structure to “Post Name”:

Once you’ve made the changes, remember to save them.
If you have any further questions or need additional assistance, please feel free to ask.
Sources:
Analyzing Your Site’s SEO with Rank Math’s SEO Analysis Tool
Score 100/100 With Rank Math Post Tests » Rank Math
What Is a Slug in WordPress? » Rank Math
WordPress Permalink Structure & Changing Individual URLs » Rank Math
This is an automated reply from Rank Math Support Bot. If you need further assistance, please reply to this topic and a human support agent will reply to you shortly.
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.