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Polling vs. Long Polling vs. SSE vs. WebSockets vs. Webhooks
How do you keep clients updated with server changes?
Feb 3
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Ashish Pratap Singh
87
1
9
How to Scale a System from 0 to 10 million+ Users
Scaling is a complex topic, but after working at big tech on services handling millions of requests and scaling my own startup (AlgoMaster.io) from…
Jan 29
•
Ashish Pratap Singh
139
12
15
How Load Balancers Actually Work
A Deep Dive
Jan 8
•
Ashish Pratap Singh
109
2
8
The Hidden Cost of Database Indexes
“Just add an index”. This is the most common advice when a query runs slow.
Jan 6
•
Ashish Pratap Singh
90
4
5
I Created the Most Comprehensive System Design Interview Resource
I’m excited to launch my premium pattern-focused System Design interview resource.
Dec 25, 2025
•
Ashish Pratap Singh
66
9
9
Pub-Sub vs Message Queue vs Message Broker
What’s the difference?
Dec 10, 2025
•
Ashish Pratap Singh
122
1
9
Why You Should NEVER Start With Microservices
The hidden cost of premature optimization
Dec 8, 2025
•
Ashish Pratap Singh
106
1
8
Latency vs. Throughput vs. Bandwidth
Latency, throughput, and bandwidth are the core metrics that describe the performance of a network or distributed system.
Nov 13, 2025
•
Ashish Pratap Singh
126
2
8
Top 6 API Architecture Styles
An API defines how two systems communicate, what data can be shared, and in what format.
Oct 30, 2025
•
Ashish Pratap Singh
146
6
10
How to Securely Store Passwords in a Database
A password is meant to be secret. If someone steals it, they do not just break into one account, they often get access to every other place where the…
Oct 28, 2025
•
Ashish Pratap Singh
195
4
12
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, 2025
•
Ashish Pratap Singh
402
20
34
How Indexing Works in Distributed Databases
In a single-node database, indexing is relatively simple.
Sep 28, 2025
•
Ashish Pratap Singh
121
5
10
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