Following a competitive pitch, Coremetrics was chosen to track behavioural data and measure customer interactions across the and its online marketing activity.
Coremetrics will capture Cotwold's online customer behaviour and contextual data using its Live programme, which it claims is stored for the visitors lifetime.
Cotswold said the data will be used to adapt campaigns in order to drive acquisitions, and boost average order values.
Michael Austin, online marketing manager at Cotswold, said: "We needed to replace our free analytics tool with a more powerful and flexible technology.
"Coremetrics Online Analytics gives us reliable and consistent data that we can adapt easily to fit our needs.
"This enables us to make informed and confident decisions to optimise our online marketing activity and drive sales.
"Online is a key channel in our business and ensuring that all customer visits are maximised is essential."