关于AWS Alexa是否支持子域名的技术咨询（Node.js技能场景）

Absolutely, AWS Alexa does support subdomains for hosting your Node.js Alexa skill backend — there's no inherent restriction against using subdomains like https://test.example.com/.

That said, there are a few key requirements you need to meet to make sure everything works smoothly:

• HTTPS is mandatory: You’re already covered here since your subdomain uses HTTPS, but it’s worth emphasizing — Alexa will only communicate with endpoints that use a secure HTTPS connection (port 443 is the standard, though you can use other ports if needed, as long as HTTPS is enabled).
• Trusted SSL certificate: Your subdomain’s SSL certificate must be issued by a certificate authority (CA) that Alexa trusts. Popular options like Let’s Encrypt, AWS Certificate Manager, or commercial CAs all work perfectly. Avoid self-signed certificates, as Alexa will reject connections to endpoints using those.
• Compliant request/response handling: Your Node.js app needs to properly handle Alexa Skills Kit (ASK) requests and return valid ASK responses. This means parsing the JSON payloads Alexa sends, processing the intent, and sending back a correctly formatted JSON response with the right structure.

A quick tip for testing: Use the Test tab in the Alexa Developer Console to send sample requests to your subdomain endpoint, or use the ASK CLI’s ask simulate command to validate connectivity. If you run into errors, double-check your domain’s DNS resolution, certificate validity, and make sure any firewalls or security groups allow incoming traffic from Alexa’s IP ranges.

内容的提问来源于stack exchange，提问作者Bala