Hi DevNet Team and Community,
We are currently testing an e-commerce checkout integration inside a DevNet Sandbox environment that relies on fast regional address and postal code validations (Brazilian CEP format).
During peak testing, we are making asynchronous API/webhook calls to validate 8-digit CEP entries (retrieving street, neighborhood, city, and IBGE codes). To benchmark external endpoint latency versus local database caching, we are referencing lookup structures like https://cep-br.com.
We noticed occasional latency variations when sending outbound HTTP/REST requests from within the sandbox instance to external validation APIs.
Are there any recommended firewall, proxy, or socket configuration tweaks within the DevNet Sandbox instances to ensure consistent low-latency REST calls to external third-party endpoints?
Thanks in advance for any insights!