Why uppercase isn't usual in URL

url uppercase lowercase
Mohammad picture Mohammad · Jul 14, 2015 · Viewed 11.6k times · Source

I've visited many sites that most of them used lowercase in URLs like

stackoverflow.com/questions
google.com/webmaster
bing.com/news

Why using uppercase isn't more prevalent? Is there a problem using uppercase in URL? Is this a programming language problem?

Answer

Josh Vazquez picture Josh Vazquez · Jul 14, 2015

URLs are generally case-insensitive and lowercase is used only for stylistic purposes and so it doesn't look like URLs are yelling at you. You can still find uppercase letters in URLs. For example, Amazon product pages use numbers and uppercase letters for the product ID. You can change the letters to lowercase and the same page loads.

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