Most of the certificates required to export to Russia and the Eurasian Union are stored in online databases that can be queried quickly and free of charge.
For anyone with even a basic understanding of Russian, these platforms are very handy to verify the validity of issued certifications.
However, keep in mind that nowadays almost all of these websites are only accessible through a VPN (a “Virtual Private Network,” a tool that allows you to connect as if you were browsing from another country).
Below you’ll find the links to the most important official portals.