What is an A record?
An A record is like a phone book: it points the name app.aifengdcs.com to the server IP 8.215.20.106. Once added, anyone opening app.aifengdcs.com reaches your server.
⚠ Confirm one thing first: where was the domain bought?
DNS for aifengdcs.com can only be changed in the panel of the provider where it was purchased. Please confirm the purchase channel, then follow the matching walkthrough below (or we guide you over video).
Case A · Bought at Alibaba Cloud (Wanwang)
Log in to the Alibaba Cloud console → Domain → Domain List → click 'Resolve' next to aifengdcs.com → 'Add Record': record type A, host app, value 8.215.20.106, TTL 10 minutes, confirm.
Case B · Bought at Cloudflare
Log in to Cloudflare → select aifengdcs.com → DNS on the left → Add record: Type A, Name app, IPv4 address 8.215.20.106, set Proxy status to DNS only (grey cloud) first, Save.
Case C · Other providers (GoDaddy, etc.)
Log in to the provider's panel, find 'DNS Management' / 'DNS Records', add one A record: Host/Name = app, Value = 8.215.20.106, save.
How to verify it worked?
Wait 10 minutes after adding, press Win+R on your computer, type cmd, then in the black window type:
nslookup app.aifengdcs.com
✅ Seeing Address: 8.215.20.106 means success. It usually takes effect within 10 minutes, up to 24 hours at most.