At this stage I cooperated with the content-maker. Initially, there was twice more info on the main page and it was very long. But after discussion and corrections we left the necessary minimum.
The information architecture is built according to AIDAS formula:
A - attract the attention to Leonid (Hero image, About)
I - raise interest in services and advantages (Services, OSINT, Advantages)
D - convince customers that they desire the services (Clients Reviews)
A - action (Process, Order buttons)
S - make clients come back (Blog)