Web address total tops one trillion Page: 1
Web address total tops one trillion
According to the world's largest search engine, web addresses, or more accurately, URL Index has just topped 1 trillion. To put it another way, that's 1 000 000 000 000 000 000 (Non-US and scientific community) URL's. Astounding!
The search giant said that its databases have catalogued the mammoth number by counting URLs, recording each link within a page.

The milestone number comes ten years after Google revealed its first site tally, which recorded some 26 million sites. By 2000, that number had grown to one billion.
The figure only applies to unique URL addresses, and not actual web pages - strictly speaking, the number of pages out there is infinite.
As the web has expanded, so have the requirements for indexing. Google could process and rank each of the 26 million pages on the web with a single workstation.

These days, the task of calculating page rank is equal to indexing and ordering every single intersection in the US, multiplied by 50,000.

Today, Google downloads the web continuously, collecting updated page information and re-processing the entire web-link graph several times per day.
What a sobering thought.
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