CUIL - The New Search Engine

Welcome to Cuil—the world’s biggest search engine. The Internet has grown. We think it’s time search did too.

The Internet has grown exponentially in the last fifteen years but search engines have not kept up—until now. Cuil searches more pages on the Web than anyone else—three times as many as Google and ten times as many as Microsoft.

Rather than rely on superficial popularity metrics, Cuil searches for and ranks pages based on their content and relevance. When we find a page with your keywords, we stay on that page and analyze the rest of its content, its concepts, their inter-relationships and the page’s coherency.

Then we offer you helpful choices and suggestions until you find the page you want and that you know is out there. We believe that analyzing the Web rather than our users is a more useful approach, so we don’t collect data about you and your habits, lest we are tempted to peek. With Cuil, your search history is always private.

Cuil is an old Irish word for knowledge. For knowledge, ask Cuil.

What does the name Cuil mean?

Tom Costello, our founderand CEO, comes from Ireland, a country with a rich mythology around thequest for wisdom. Cuil is the Gaelic word for both knowledge and hazel,and features prominently in ancient legend. One famous story tells of a salmon that ate nine hazelnuts that had fallen into the Fountain of Wisdom and thereby gained all the knowledge in the world. Whoever ate the salmon would acquire this knowledge.

A famous poet fished for many years on the River Boyne hoping to catch the Salmon of Knowledge. When he finally caught it, he gave it to his young apprentice Finn McCuil to prepare, warning him not to eat any. As Finn cooked the salmon he burnt his thumb and instinctively sucked it to ease the pain. And so it was Finn and not the poet who gained all the wisdom of the world. Finn went on to become one of the great heroes of Irish folklore. Any time he needed to know the answer to a question, he sucked his thumb.

As a child Tom poached salmon from the same spot on the Boyne where it is said the Salmon of Knowledge was caught.

How does Cuil improve search results?

Cuil’s goals are to index the whole Web, to analyze deeply its pages and to organize results in a rich and helpful way that allows you to explore fully the subject of your search.

So we started from scratch—with a fresh approach, an entirely new architecture and breakthrough algorithms.

Our approach is to focus on the content of a page and then present a set of results that has both depth and breadth.

Our aim is to give you a wider range of more detailed results and the opportunity to explore more fully the different ideas behind your search. We think this approach is more useful to you than a simple list.

So Cuil searches the Web for pages with your keywords and then we analyze the rest of the text on those pages. This tells us that the same word has several different meanings in different contexts. Are you looking for jaguar the cat, the car or the operating system?

We sort out all those different contexts so that you don’t have to waste time rephrasing your query when you get the wrong result.

Different ideas are separated into tabs; we add images and roll-over definitions for each page and then make suggestions as to how you might refine your search. We use columns so you can see more results on one page.

We think that if you are interested in content rather than popularity, you’ll find our approach more useful.