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The secret architecture behind "username already taken"
When you try to sign up on a platform like Instagram and type in your username, the system almost instantly tells you whether it’s available or not. If…
Oct 1
•
Ashish Pratap Singh
112
12
How Indexing Works in Distributed Databases
In a single-node database, indexing is relatively simple.
Sep 28
•
Ashish Pratap Singh
95
3
How DNS Actually Works
When you type a website address into your browser, something almost magical happens.
Sep 11
•
Ashish Pratap Singh
131
10
What are Server-Sent Events (SSE)?
Imagine you’re watching a stock market dashboard. Prices keep changing every second, sometimes multiple times in a second.
Sep 7
•
Ashish Pratap Singh
61
4
Client-Server Architecture Explained
Every time you're browsing your favorite website, streaming a show, or sending an email, you’re interacting with a system designed around the…
Sep 3
•
Ashish Pratap Singh
107
The 10 BIG Questions of System Design
System design is often misunderstood as a simple exercise of sketching boxes and arrows on a whiteboard.
Aug 31
•
Ashish Pratap Singh
82
1
I Created the most Comprehensive LLD Interview Resource
I’m excited to launch my premium Low-Level Design interview resource, which I’ve been working on for the past 4 months.
Aug 21
•
Ashish Pratap Singh
40
1
What is GeoHashing?
Imagine you’re building a system like Uber, Google Maps, or a nearby restaurant finder.
Jul 30
•
Ashish Pratap Singh
119
6
Load Balancer vs Reverse Proxy vs API Gateway
In modern backend architecture, the terms Load Balancer, API Gateway, and Reverse Proxy often come into play.
Jul 18
•
Ashish Pratap Singh
188
7
File Storage vs Object Storage vs Block Storage
When it comes to storing large unstructured data like images, documents, videos, there are three popular storage solutions:
Jul 9
•
Ashish Pratap Singh
129
4
Designing a Distributed Rate Limiter
A rate limiter is a mechanism used to control the number of requests or operations a user, client, or system can perform within a specific time window.
Jun 15
•
Ashish Pratap Singh
61
What are JSON Web Tokens (JWTs)?
A JWT (JSON Web Token) is a compact, URL-safe token (a JSON object) used to securely transmit information between two parties, typically a client and a…
Jun 10
•
Ashish Pratap Singh
176
9
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