Take a list of domains and probe for working http and https servers.

▶ go install github.com/tomnomnom/httprobe@latest 

httprobe accepts line-delimited domains on stdin:

▶ cat recon/example/domains.txt example.com example.edu example.net ▶ cat recon/example/domains.txt | httprobe http://example.com http://example.net http://example.edu https://example.com https://example.edu https://example.net 

By default httprobe checks for HTTP on port 80 and HTTPS on port 443. You can add additional probes with the -p flag by specifying a protocol and port pair:

▶ cat domains.txt | httprobe -p http:81 -p https:8443 

You can set the concurrency level with the -c flag:

▶ cat domains.txt | httprobe -c 50 

You can change the timeout by using the -t flag and specifying a timeout in milliseconds:

▶ cat domains.txt | httprobe -t 20000 

If you don't want to probe for HTTP on port 80 or HTTPS on port 443, you can use the -s flag. You'll need to specify the probes you do want using the -p flag:

▶ cat domains.txt | httprobe -s -p https:8443 

Sometimes you don't care about checking HTTP if HTTPS is working. You can do that with the --prefer-https flag:

▶ cat domains.txt | httprobe --prefer-https 

Build the docker container:

▶ docker build -t httprobe . 

Run the container, passing the contents of a file into stdin of the process inside the container. -i is required to correctly map stdin into the container and to the httprobe binary.

▶ cat domains.txt | docker run -i httprobe <args>