Do 301 redirects affect site rankings?

Question

Search Engine Optimization

There is a site that is about 6 years old, during this time it has accumulated about 14k posts and 10k daily traffic. At the moment, the site is on WordPress and has a disgusting CNC system - site.ru/category/postname, the problem is that when you change the category, the entire url changes, which is bad.
Now the site is being transferred to its own platform and I would like to change this system to a more familiar one - site.ru/news/postname, but there is a fear that such a global change in URLs will shake positions and sag traffic. Of course, there will be 301 redirects from old pages to new ones, but will the traffic go down, is there a risk of losing positions? Or is it better not to risk it and leave it as it is? I would like to hear your experience with similar redirects.

Answer 1

Nobody will tell you this. From my own experience, addresses changed on one site a few years ago - they dropped out of the search and did not return. But in my comment there are a dozen people who are doing well, and in order to know for sure, you need to either ask Yandex or collect statistics in at least 1000 cases.

Answer 2

The standard situation for any domain moves with redirects or a mass change of the URL of pages with a configured 301 redirect to new versions is a temporary traffic drop, which can take from one to several weeks. But if everything is set up correctly, then traffic and positions are restored to the previous level, adjusted for the current level of competition in the subject and for search queries.

Answer 3

if the site - the domain is the same - it will be restored,
but - it happens that the linking in the new engine is very different, and then how lucky

Answer 4

This is fine.
The main thing is everything in one fell swoop, the correct 301 for each, and not remove 301 for at least a couple of years

Answer 5

Nafig it is not needed, unless you are only embarrassed that in Yandex and google the index can be doubled (pages without www and with it are considered separately in the index, sometimes the search engine leaves only one option later)
More detailed info on the link - blog.ivru.net /?id=133
Now I’m testing on the same site whether a redirect from http to https will affect it in any way (previously, the site allowed you to type the address as you like, while both search engines had only https in the index, and I didn’t ask them about it, they reindexed themselves everything is on https as soon as the certificate appeared, it applies to both Yandex and google)
SSL certificate is paid for 2 years (Sectigo Limited).