Solution: The server owner has protected the directory, but the index is still crawled. Try adding a trailing slash / to the URL. If that fails, look for a different index.
intitle:index.of? "Arrow" "S01E01" 1080p x265 AAC 5.1index of arrow s1 extra quality
A generic search for "index of arrow s1" might yield 480p TV rips. To get "extra quality," you need precision. Here are advanced search strings to use on Google, Bing, or DuckDuckGo: Solution: The server owner has protected the directory,