Is the rule 1 page - 1 url still relevant in SEO?

Question

Search Engine Optimization

Three URLs are given:
www.host.ru/product_id
www.host.ru/product_id/ www.host.ru/product_id?asdasdasd
...

.e. part of the page is constantly changing).

Internal links lead to pages with a URL like www.host.ru/product_id (without a slash at the end).

What are the negative effects of this state of affairs, do they exist at all?
Suppose we can write a rule from the slash at the end, but does it make sense to filter the garbage parameters after the "?" sign, because this also makes the url and page unique. Thank you!

Answer 1

support.google.com/webmasters/bin/answer.py?hl=en&answer=139394

Answer 2

Let me guess, joomla! Of course, this is bad, but, whatever one may say, no one has yet figured out how to get rid of it. Judge for yourself, if instead of www.host.ru/product_id?asdasdasd we insert say www.host.ru/product_id?asdfhefgs - the same page will open, and there can be tens of millions of such combinations, as you yourself understand, although, millions of millions, all Of course they can't be closed.
Of course, you can look for some alternative solution, but if you leave it like that, I can say from personal experience that there will be no special sanctions and filters from the PS, although maybe my ward was just lucky.
Good luck.

Answer 3

help.yandex.ru/webmaster/?id=1108946
"3. Limit indexing of service information
. in the Yandex index there will be many duplicates of pages like www.host.ru/product_id?asdasdasd , which can negatively affect the ranking of the main page www.host.ru/product_id/
According to experience, it is better to close these pages in robots, and if garbage get- variables in the URL create product sortings/filters, then add the rel="nofollow" attribute to the links to these sortings.

Answer 4

Already said above.
The best option is to use the canonical tag + close in the robot + links to a www.host.ru/product_id
In addition, if the content of www.host.ru/product_id and www.host.ru/product_id/ is the same, then a 301 redirect is needed (and also 301 redirect with no www options)

Answer 5

The main thing is that the site should not have links of different types, but to the same page. Otherwise, two pages with the same content may appear in the index.