Hello. I found some very issue. Check movie pls.
Here must be 404 error.
This is unlimited double content. For SEO this is fatal error. How fix it?
For example. I was create this is topic on your forum.
Also someone canonical url, u can check here.
after I’m add something characters in original url this is topic, for example: (77777)
and also have this is urls in canonical u can check here.
check video please
Sorry for my poor English. Maybe others users understanding what I mean and writing on good English.
Double content this is very bad for site SEO. For example read please https://moz.com/learn/seo/duplicate-content
Sorry for the late response.
Please don't worry about this, there is no problem related to SEO. In the video, you've provided you manually change the URL, so there is no page with such URL, and there is no way that the Google robot's scan it.
So it can happen only if you manually change the URL, and it's not a problem. It's designed to work in this way for the following reason. In case if the topic is moved to another forum, it'll be displayed without any issues.
What is a url? https://www.russpuss.ru/postid/3722/
how created https://www.russpuss.ru/postid/3722/ ????