porevo-online.ru is a 13 character word. It can be bad or good length by depending on what kind of domain name for targeting audience.
Hyphens and Numbers
Hyphens and numbers in a domain name is likely cause loss of visitors to the website due to typos and miscommunication. Try to avoid them unless the reason is something sensible.
Top Level Domain
porevo-online.ru is still good but not best as same as .com. This is designed to target a specific country or audience. Remember that you can lose some web traffic to .com version of the domain because people tend to type .com more than any TLD.
porevo-online is not a dictionary word but it contains dictionary words. Dictionary is most important to people because they will remember better without dictionary words. This domain is contained with pore