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How to Shorten a URL Link
Stop Using A Link Shortener (like bit.ly and tinyurl) - Learn Why Here!
How to Shorten a URL
What is a URL Shortener?
How To Shorten URLs | Free Link Shortener Tools BITLY & TINYURL
Google URL shortener tutorial
Link shortener: How to Use URL Shortener Tools Google, Bitly
System Design: Design a URL Shortener like TinyURL