The World Wide Web Worm (WWWW) is one of the first search engines in the history of the web. It was developed in 1993 by Oliver McBryan at the University of Colorado: a program that automatically visited pages by following links and built an index of titles and addresses (URLs) that users could query online.
Despite the name, it was not a worm in the modern sense of the word: it was not malicious software and did not spread across other people’s computers. The word “worm” simply evoked the idea of a program that moves from one page to another.
How it worked
The WWWW was a crawler: it started from a few pages, read their links and visited the linked pages, recording titles and URLs in an index. Anyone searching for something queried that index and got a list of matching pages. It is the same basic principle behind today’s search engine crawlers, on a vastly smaller scale.
Why it matters for SEO
With the first crawlers came the idea that a page has to be found by an automated program before it can be found by a person. By indexing mainly titles and URLs, the WWWW already showed how much a clear title and a readable address matter: two elements that are still part of the basics of optimization today.
Frequently asked questions
Who created the World Wide Web Worm?
Oliver McBryan, at the University of Colorado, in 1993.
Was it a virus or malicious software?
No. It was a search engine: the word “worm” in the name did not indicate harmful software.
Does it still exist?
No, it was superseded by the search engines that emerged in the following years. Today it is remembered as one of the pioneers of web search.
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Web 1.0 Google crawler Search engines