That's poor configuration for most public websites that you want indexed by search bots that's worth fixing. It's called a soft 404, and makes it troublesome to detect when links are invalid, break or have moved. Google will even warn you about it: https://developers.google.com/search/docs/advanced/crawling/...
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That's poor configuration for most public websites that you want indexed by search bots that's worth fixing. It's called a soft 404, and makes it troublesome to detect when links are invalid, break or have moved. Google will even warn you about it: https://developers.google.com/search/docs/advanced/crawling/...
The vast majority of servers on port 80 are not public websites that you want indexed by search bots.