An "accompanying website" refers to a website that is connected or related to something else. It provides additional information, resources, or support related to a particular topic, product, or service. Full definition
The resulting printed guidebook and accompanying website provides information for teens on how to safeguard thier personal information, reputation and privacy, the body as information, and government surveillance issues. (lawcentralalberta.ca)
Broadcasters are urged to use accompanying websites for teacher materials and to consider aligning with core curricula. (edutopia.org)
Check out the Bradt guide to Bangladesh — the most comprehensive English guide — and the useful accompanying website (wanderlust.co.uk)