All avatar images get pre-generated for a set of sizes
- If no image at the user requested size is found, the next larger image gets
returned.
+- Supports the ``mm`` fallback image (mystery man)
__ http://wiki.libravatar.org/api/
__ https://www.libravatar.org/tools/check_domain
__ https://www.libravatar.org/tools/check
+See the libravatar wiki about `running a custom server`__ and
+the `API specification`__ for more information.
+
+__ http://wiki.libravatar.org/running_your_own/
+__ http://wiki.libravatar.org/api/
+
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License