The global web is powered by a diverse stack of server-side technologies, with PHP continuing to dominate as the backbone of the internet, running 77.4% of all websites with a known server-side language. This research paper provides a comprehensive breakdown of the technologies powering websites, including server operating systems, web servers, programming languages, and databases, based on 2025 industry data.
Server-Side Programming Languages
PHP remains the most widely used server-side language, particularly due to its deep integration with WordPress, which powers 64.3% of all websites. Despite competition from modern frameworks, PHP maintains a stronghold, especially in content-heavy and Retail Web Design. JavaScript, through Node.js, is the second most popular server-side language, used by 34.1% of websites, favored for real-time applications and full-stack development. Python has seen rapid growth, now powering 12.8% of websites, driven by its use in AI Strategy and frameworks like Django and Flask. ASP.NET supports 8.9% of sites, primarily in government and enterprise environments where Microsoft ecosystems are standard. Ruby now powers 1.7%, while Java and Go each power 2.1% and 1.5% respectively, commonly found in high-traffic and microservices architectures.
Web Server Software
The choice of web server software significantly impacts performance, security, and scalability. Apache remains widely deployed, powering 30.1% of websites, praised for its modularity. However, Nginx has surged in popularity, now running 34.1% of sites, surpassing Apache due to its high performance in handling concurrent connections. Cloudflare’s web server powers 22.9% of websites, particularly those prioritizing speed and DDoS protection. Microsoft IIS holds 6.8%, primarily in Windows-based enterprise environments, while LiteSpeed powers 4.1%, especially among high-traffic WordPress hosts.
Server Operating Systems
Linux is the dominant server operating system, running 92.1% of web servers due to its stability, security, and open-source nature. Among Linux distributions, Ubuntu leads with 41.5%, followed by Debian (23.7%) and CentOS (18.2%). Windows Server powers 6.4% of web servers, primarily in organizations using Microsoft SQL Server or ASP.NET. FreeBSD holds a niche 1.1%, favored for its performance in high-traffic environments.
Databases
Databases are critical components of dynamic websites. MySQL remains the most popular, powering 52.6% of websites, especially WordPress and Laravel applications. PostgreSQL has grown steadily to 14.3%, preferred for complex queries and GIS applications. SQLite is used in 8.9% of sites, typically in lightweight applications. Microsoft SQL Server supports 7.1%, primarily in enterprise and .NET environments. MongoDB (NoSQL) powers 6.2% of sites, especially in real-time and mobile-backed applications.
Hosting and Cloud Infrastructure
The shift toward cloud hosting continues, with 84% of websites now hosted on cloud platforms. Amazon Web Services (AWS) leads with 33% of the market, followed by Google Cloud Platform (GCP) at 18% and Microsoft Azure at 16%. Shared hosting remains common for Small Business Web Design, though managed WordPress hosting is growing at 19% year-over-year, offering optimized performance and security. Managed solutions are a critical part of a comprehensive Website Maintenance strategy.
Emerging Trends and Future Outlook
AI is beginning to influence server-side technologies, with AI-powered load balancing and predictive scaling now available on major cloud platforms. Serverless computing is growing, particularly for Custom Web Applications and event-driven applications. As the web evolves, as noted in our 2025 Year in Review, the server-side stack will continue to diversify, but foundational technologies like PHP, Linux, MySQL, and Nginx will remain critical for the foreseeable future.
Security and performance remain top priorities. Over 70% of websites now use HTTPS by default. HTTP/3 adoption is accelerating, with 28% of sites now supporting the QUIC protocol for faster, more secure connections. For those looking to build on these stable technologies, a Digital Consulting approach can help align your technology stack with your long-term business goals.
