Parses text files for HTTP URLs and checks if they are still valid. Install with

pip install deadlink

and use as

deadlink check README.md   # or multiple files/directories
# or deadlink c README.md

You can configure deadlink via its config file ~/.config/deadlink/deadlink.toml, e.g.,

timeout_s = 10
cache_ttl_s = 259200
num_concurrent_requests = 5
# allow_file_extensions = ["txt", "yaml", "c"]
ignore_hosts = ["www.example.com"]

Example output: