The dedicated frontend URL addresses are in process of being rolled out. What this means: 1) You can point and access a specific record directly. 2) You can work in a Production and Sandbox account simultaneously. Take note, though: Do not start developing integrations or other functionality with the new dedicated account address! Reason: NetSuite operates a global set of data centers with different subdomains (e.g. NA1, EU2). In the future, you might want to move your data centre for compliance or performance reasons. (Yes, NetSuite is offering such a service - FREE OF CHARGE. Much in contrast to other players, that deny it, despite blatant conflict with EU GDPR Compliance. cough) Instead, you should consistently use the url.resolveDomain() function, that systematically resolves your account location - anywhere in the world.