Do you need a map of Germany or France for your website? In Rest Gis you will generate the appropriate maps. The best part is that you can apply additional layers like rivers, roads, airports, etc.

Most websites need maps. Map of contacts, map of shops or service points - why do you need maps?

How many times have you seen a map on the page that says "For development purposes only"? Maybe it happened on your website? Try uMap, you can really do a lot with uMap.