Which command returns a list of unique words from the target URL?

• A. cewl --email www.certifiedhacker.com
• B. ruby cewl.rb --help
• C. cewl www.certifiedhacker.com
• D. grep -R "words" website

Answer: (C)

cewl www.certifiedhacker.com is the direct way to generate a customized word list from a target URL. CEWL (Custom Word List) crawls the specified webpage (and optionally related pages) and extracts the words it finds, then outputs them in a normalised form (usually lowercase) with duplicates removed, giving you a list of unique words present on the site. This is precisely what the question is asking for: turning the content of a URL into a usable set of individual words for use as a wordlist.

The other options don’t achieve this. Displaying help shows usage instructions rather than a word list. Invoking the Ruby script would run the script or require the Ruby version of CEWL, not the standard URL-based extraction. And using a recursive grep searches local files for a string and does not fetch or parse the target website to build a wordlist.