It passes the following code checkers:

• mypy
• pylint
• pyflakes
• pycodestyle
• pydocstyle

It gives either CSV (pipe separated) or JSON as output, depending on comand line options. CSV is the default, but you can specify --as-json for JSON output.

It traverses endlessly under your focus prefixes, but will only go one link deep on URL's that don't match your focus prefixes.

Usage is like:

$ ./find-dead-links --help
below cmd output started 2018 Tue Feb 06 10:49:53 AM PST
Usage: ./find-dead-links --verbose --focus-prefix http://host/ --timeout seconds --as-json --urls url1 url2 ... urln

--focus-prefix may be specified more than once.

Default output format is 3-column csv.  The first column is the kind of problem detected, the second is the
link that had a problem, and the third column is the referrer link.

Or you can specify --as-json, which is mostly self-explanatory.

Example use:

$ ./find-dead-links --as-json --focus-prefix http://stromberg.dnsalias.org/ --urls https://stromberg.dnsalias.org/~strombrg/spider-test/good-local-1.html
below cmd output started 2018 Tue Feb 06 11:02:35 AM PST
[
    {
        "bad_link": "http://docs.sun.com/app/docs/coll/QFS_4.3",
        "problem": "dead",
        "referrer_link": "https://stromberg.dnsalias.org/~strombrg/spider-test/good-local-1.html"
    },
    {
        "bad_link": "http://www.amazon.com",
        "problem": "dead",
        "referrer_link": "https://stromberg.dnsalias.org/~strombrg/spider-test/good-local-1.html"
    },
    {
        "bad_link": "https://stromberg.dnsalias.org/~strombrg/spider-test/bad-local-1.html",
        "problem": "dead",
        "referrer_link": "https://stromberg.dnsalias.org/~strombrg/spider-test/good-local-2.html"
    }
]

Related work:

• LinkChecker (2.x only)
• check_link.py (appears to be 3.x) Its output appears to be colorized.

You can e-mail the author with questions or comments: