How to export .GLB from sandbox and import to website with same configuratios

In what way it is different? What is the website you are importing the model to?

Having some discrepancies between two different renderers (say Babylon and Three for eg) is expected as they don’t do things exactly the same way. But the rendered models should definitely be closed to each other.

If the website is using Babylon, I guess you will need to setup a repro for us to be able to help. One difference between your own Babylon project and the sandbox could be the environment texture that you either did not setup or use a different texture from the one used by the sandbox.

This thread may help: How to make model lighting/pre-processing in code the same as how a model appears in the sandbox? - #2 by PirateJC