@robert Thank you for your instruction~ I tested and found it's the All-in-One Security Plugin. It has the reCAPTCHA feature that I set for t...

@robert I also attach a screenshot of my plugins list. Please let me know what plugin can use reCAPTCHA. Because I don't think any of them can use reC...

@robert Thanks for your reply! Here is the screenshot of the page that I set up cache plugin - LiteSpeed. I mentioned it that I set it up before...