REDbot checks HTTP resources.
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This is REDbot, the Resource Expert Droid.

REDbot checks HTTP resources for feature support and common protocol problems. You can use the public instance on <>, or you can install it locally and use it on the command line, or even self-host your own Web checker.

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Contributing to REDbot

Your ideas, questions and other contributions are most welcome. See for details.

Setting Up Your Own REDbot


REDbot needs:

  1. Python 3.5 or greater; see <>
  2. The Thor HTTP library; see <>
  3. The markdown library; see <>
  4. To use REDbot on the Web, you'll need a Web server that implements the CGI interface; e.g., Apache.

Installing RED

Unpack the REDbot tarball. The relevant files are:

  • bin/ - the Web CGI script for running REDbot
  • bin/redbot_cli - the command-line interface
  • redbot/ - REDbot's Python library files
  • redbot/assets/ - REDbot's CSS stylesheet and JavaScript library

To install from source (e.g., if you clone from github):

python install

installs REDbot's libraries as well as the command-line version as 'redbot'.

Setting up your Web Server

To run REDbot as a CGI script, place where you wish it to be served from by the Web server, and place config.txt in the same directory.

For example, with Apache you can put it in a directory and add these configuration directives (e.g., in .htaccess, if enabled):

AddHandler cgi-script .py

If the directory is the root directory for your server "", this will configure REDbot to be at the URI "".

You can also locate config.txt somewhere else, and indicate its path in an environment variable:

SetEnv REDBOT_CONFIG /path/to/config.txt

The contents of the assets directory also need to be made available on the server; by default, they're in the 'static' subdirectory of the script's URI. This can be changed using the 'static_root' configuration variable in config.txt.

You should also create the directory referenced by the 'save_dir' configuration variable, and make sure that it's writable to the Web server process. This is where RED stores state files, and you should configure a cron job to regularly clean it. For example:

0 * * * * find /var/state/redbot/ -mmin +360 -exec rm {} \;

If you don't want to allow users to store responses, set save_dir to 'None'.

Docker deployment

You can also build the project through docker, clone from Github then :

docker build -t redbot .

Start the webserver

docker run -p 8080:80 redbot

Use the command line

docker run --entrypoint=/redbot/bin/redbot redbot <url>


Icons by Momenticon. REDbot includes code from jQuery and prettify.js.