Creating a URL Shortener: System Design 101

TLDRLearn how to design a URL shortener system, including considerations for URL expiration, custom URLs, scalability, and caching.

Key insights

🔧URL expiration can be set for a specific duration, such as 100 years, to allow short URLs to live for a long time.

🔑Users can create their own custom short URLs, with a length limit of 16 characters.

📈The system should be designed to handle a large number of shorten requests, such as 100 million per month.

🌐The system should provide REST APIs to allow users to integrate the URL shortening service into their own applications.

💡Caching can improve performance by storing frequently accessed short URLs in memory.

Q&A

Should the short URL expire?

No, the short URL can be set to live for a specific duration, such as 100 years.

Can users create their own custom short URLs?

Yes, users can create their own custom short URLs with a maximum length of 16 characters.

How many shorten requests should be expected per month?

The system should be designed to handle a large number of shorten requests, such as 100 million per month.

Does the system provide any APIs?

Yes, the system should provide REST APIs for users to integrate the URL shortening service into their own applications.

How can performance be improved?

Caching can improve performance by storing frequently accessed short URLs in memory.

Timestamped Summary

00:00In this video, we will learn how to design a URL shortener system.

00:10The short URLs can be set to live for a specific duration, such as 100 years.

00:22Users can create their own custom short URLs with a maximum length of 16 characters.

00:35The system should be designed to handle a large number of shorten requests, such as 100 million per month.

01:21The system should provide REST APIs for users to integrate the URL shortening service into their own applications.

03:07Caching can improve performance by storing frequently accessed short URLs in memory.