The Web spread after CERN let everyone use it for free.

The Web’s key idea was connection, not storage

CERN’s researchers worked across different computers and operating systems, with information scattered among files, databases, and local networks. Finding a document could depend on knowing where it lived and how a particular machine stored it. Berners-Lee’s proposal addressed that everyday friction: make documents refer to one another through links, so a reader could follow an idea instead of retracing the steps needed to locate each file.

That approach joined three pieces. A URL gives a resource an address; HTTP lets a browser request it from a computer serving it; and HTML describes the document and its links. Together, they made a page on one machine point to material on another, even if the two machines belonged to different institutions.

Why shared rules mattered

The Web is not the internet itself. The internet provides the underlying connections between computers; the Web is a system for publishing and navigating linked information over those connections. Its standards made it possible for independently built computers and software to exchange pages without one institution controlling every part of the process.

That distinction helps explain why the project could spread beyond its original research setting. A university did not need to join a single proprietary platform to publish a page, and readers did not need the same computer system as its author. They needed software that followed the same basic rules.

An open design lowered the cost of joining

Making the Web’s foundational code and standards freely available meant that developers could build browsers, servers, and other tools without paying for a license to the core technology. The practical effect was cumulative: each new site made the Web more useful, while each new browser or server made it easier for more people to participate.

The lasting design choice was not simply that documents could be shared. It was that anyone could create a linkable resource using common rules, allowing the Web to grow through countless separate contributions rather than through one centrally managed collection.