the rush to crack the internet spy network answers

Under the surface is the deep web: a mass of pages that are not indexed. Standard web browsers trawl the surface web, the pages that are most visible. Think of the web as having three layers: surface, deep and dark. While the search index is massive, it contains only a fraction of what is on the web.įar more, perhaps 95%, is unindexed and so invisible to standard browsers. Google the word “puppies” and your browser will display web pages the search engine has found in the hundreds of billions that has logged in its search index. What is the dark web?Ī search of the web does not search all of it. The rise of apps means that for many people, being on the internet today is less about browsing the open web than getting more focused information: news, messages, weather forecasts, videos and the like. The top 0.1% of websites (roughly 5m) attract more than half of the world’s web traffic.Īmong them are Google, YouTube, Facebook, the Chinese site Baidu, Instagram, Yahoo, Twitter, the Russian social network VK.com, Wikipedia, Amazon and a smattering of porn sites. There are nearly 2bn websites in existence but most are hardly visited.

Google handles more than 40,000 searches per second, and has 60% of the global browser market through Chrome. That information, be it text, music, photos or videos or whatever, is written on web pages served up by a web browser. The web is a way to view and share information over the internet. That’s the output of 10 Hinkley Point B nuclear power stations. In 2016, the US government’s Lawrence Berkeley National Laboratory estimated that American data centres – facilities where computers store, process and share information – might need 73bn kWh of energy in 2020. The study’s author, Anders Andrae, said the coming “tsunami of data” was to blame. The Chinese telecoms firm Huawei estimates that the information and communications technology (ICT) industry could use 20% of the world’s electricity and release more than 5% of the world’s carbon emissions by 2025. Last year, the chief of the British defence staff, Sir Stuart Peach, warned that Russia could pose a threat to international commerce and the internet if it chose to destroy marine cables. In 2008, damage to two marine cables near the Egyptian port of Alexandria affected tens of millions of internet users in Africa, India, Pakistan and the Middle East. Major cables serve a staggering number of people. World wired web Photograph: TeleGeography/The cables range from the 80-mile Dublin to Anglesey connection to the 12,000-mile Asia-America Gateway, which links California to Singapore, Hong Kong and other places in Asia.

The rush to crack the internet spy network answers