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Stack Exchange sites can be found on these domains (or subdomains, e.g. *.stackexchange.com (including *.meta.stackexchange.com)):
stackexchange.com includes first level domains, and second level domains: *.*.stackexchange.com
The following domains (and in most cases their subdomains) are necessary to view Stack Exchange content and participate on Stack Exchange:
Domain |
Purpose |
ajax.googleapis.com |
some JavaScript (jQuery, etc.) |
i.stack.imgur.com |
User Images |
cdnjs.cloudflare.com |
MathJax on supported sites |
*.sstatic.net |
static content (JavaScript, CSS, images, etc) |
stacksnippets.net |
code snippets on Stack Overflow |
These ones are required for "normal" site usage on any site. In other words, if you just want to let your employees browse and post on Stack Overflow, but not waste time at Arqade, then you'll need to include Stack Overflow and all these dependencies.
The following additional domains are required to enable additional features:
Domain |
Purpose |
stackauth.com |
global login (no longer needed due to Universal Login) |
gravatar.com |
to see user avatars of users using Gravatar |
graph.facebook.com |
to see user avatars of users using their Facebook profile photo |
*.googleusercontent.com |
to see user avatars of users using their Google profile photo |
*.quantserve.com |
Site Analytics |
*.google-analytics.com |
Site Analytics |
*.scorecardresearch.com |
Site Analytics |
Related domains, not needed for viewing/using the regular Q/A sites:
You can get a complete (and always up to date) list of Stack Exchange site URLs from the API. There are wrapper libraries in many languages for reading the API.