Several features found on frogfind.com are not present in this repository

[Sevenanths]

There's quite a few features available at frogfind.com that are seemingly not a part of the open source version:

• the frog image on the homepage (minor, I know)
• proper 304 support (my local version simply seems to download redirects, happens in @ihyoudou's Docker version as well), frogfind.com handles redirects without issue
• headers are not shown in the local version
• several PHP warnings, which do not show in the production version on frogfind.com (could be due to my own PHP error level, but still)
• DuckDuckGo rate limiting -- this does not happen on the production version, and I'm not sure why (we should be equal to DDG)

Is this intentional? I find the missing features severely limit the usability of a local copy of FrogFind, which defeats the purpose of a local copy entirely.

Thanks!