What IP addresses and ports are required for firewall exceptions for Stack Overflow sites? [duplicate]

Question

While using the Stack Exchange sites, image uploading is restricted in my office by default and I need to request an exception to interact with Stack Exchange sites (i.e., post questions answers with images, etc.). My office requires me to provide an IP address, ports, or URLs. So what URLs and ports should I give them to open access for me?

I was thinking to give them,

URLs

https://stackoverflow.com/
https://*.stackoverflow.com/
https://*.stackexchange.com/

PORT: 80

Is there a guideline?

Answer 1

The port should be 443 and 80.

For the IP address, use the following:

;; ANSWER SECTION:
stackoverflow.com.    3600    IN    A    151.101.193.69
stackoverflow.com.    3600    IN    A    151.101.129.69
stackoverflow.com.    3600    IN    A    151.101.1.69
stackoverflow.com.    3600    IN    A    151.101.65.69

(I've got it with dig stackoverflow.com), but be ready to update them from time to time.