Design a malicious-URL checking service using an isMalicious API

Read the full interview experience this question came from →

Quick Overview

This question evaluates system design competencies such as scalable API design, caching and cache invalidation strategies, rate limiting and backpressure, fault tolerance and circuit-breaking, data modeling for reputation storage, partitioning, and operational metrics for reliability.

Design a malicious-URL checking service using an isMalicious API

Company: LinkedIn

Role: Software Engineer

Category: System Design

Difficulty: medium

Interview Round: Onsite

Overview: This question evaluates system design competencies such as scalable API design, caching and cache invalidation strategies, rate limiting and backpressure, fault tolerance and circuit-breaking, data modeling for reputation storage, partitioning, and operational metrics for reliability.

Read the full LinkedIn Software Engineer interview experience this question came from

LinkedIn logo
LinkedIn
Jan 12, 2026
mediumSoftware EngineerOnsiteSystem Design
20
0
Loading...