How do I get the full (CDN server) address for a website?

How do I get the full (CDN server) address for a website?
Use several websites to resolve DNS IP addresses
Discovery is not very comprehensive and does not cover all CDN
The question is, how do I find all the CDN addresses?

Reply content:

How do I get the full (CDN server) address for a website?
Use several websites to resolve DNS IP addresses
Discovery is not very comprehensive and does not cover all CDN
The question is, how do I find all the CDN addresses?

One way: If not malicious, you can ask the other site administrator to chat. If the CDN is their own set up to ask to know, if it is a third-party CDN, you can directly ask the third party.
Channel Two: With multiple servers to resolve the target site's DNS. If you have enough detection points and wide distribution, it is possible to detect all the addresses.
Channel Three: The source server black, write a script to see the source of access ...

