Shadow mode

See it on your traffic before you pay anything.

Measuring needs no extra calls. A share of your documents (10% by default) is handled the old way, as a full rewrite, exactly as today; the rest go through Linklbee. Comparing the two is the measurement.

The control documents are calls you would have made anyway, on your own vendor key, so their cost is on your vendor invoice and you can check these figures yourself.