IIS vs Apache: Which is the Best Web Server? | UpGuard

This document compares Microsoft IIS and Apache web servers across performance, security, features, licensing, usability, and market share, highlighting IIS’s tight Windows/.NET integration versus Apache’s open-source flexibility and cross-platform support. It provides high-level hardening recommendations for both platforms, notes performance tuning considerations (including using Nginx as a reverse proxy), and concludes that the optimal choice depends on specific environment, application stack, and operational requirements.