How to connect an online store to the main site?

Question

Electronic commerce

The question in essence is that
there is a working site sitename.ru
, the management wants to try their hand and to the main site to use an Internet store with a companion (narrow sphere)
the question is, which address is better to use? : magazin.sitename.ru or sitename.ru/magazin
thanks.
PS It is unlikely that over time the store will reach the capacity for profit more than the main site of services - but still, in order to further advance what to do? The main site is already 10 years old, the TIC is small but the content is of high quality

Answer 1

subdomain placement is much easier than subdirectories. especially since a decent hoster is always given several free subdomains
, there are engines that only get into the subdirectory after dancing with a tambourine

Answer 2

Yes, I'm my own hoster, so there are no problems at all :) . I asked in terms of SEO and other optimizations. But that's later.
PS Do you have a fancy engine in mind without any special glitches and which is rarely broken? while I'm leaning towards this https://www.opencart.com
I had a really sad experience with it - some kind of network worm broke these stores twice (I wrote something in the .htaccess file) it was a long time ago, I don't remember all the nuances