The official website of the U.S. government has a simple and clear interface design but rich functions. It mainly has four sections of service functions, namely for the public, for enterprises, for federal employees, and for the government, and provides segmented services for these objects. Every user can quickly obtain the services they need from the US government website.

The Central Intelligence Agency (CIA) is the intelligence, espionage and counterintelligence agency of the United States. Its main responsibility is to collect and analyze intelligence on global politics, economy, culture, military, science and technology, and submit the obtained intelligence to relevant departments of the U.S. government. . The CIA is known as the "four major intelligence organizations in the world" together with the British MI6, the Russian KGB and the Israeli Mossad.

The National Oceanic and Atmospheric Administration (NOAA) is a science and technology department of the U.S. Department of Commerce. It was established in 1807 to detect changes in the atmosphere, earth, and oceans, and then make predictions and analyze the oceans. Maintain, manage, develop and utilize coastal resources to meet economic, social and environmental needs. Specific content includes providing nautical and aerial charts, weather forecasts, storm warnings, climate monitoring, fishery management, coastal resource development and utilization, and Protection etc.

The Federal Bureau of Investigation (FBI) is the earliest intelligence police agency in the United States and the most effective crime-fighting department in the United States. It is affiliated with the Department of Justice and was established in 1935. Its main responsibilities are to protect U.S. security, investigate foreign intelligence and terrorist activities, and provide leadership and legal enforcement assistance to federal, state, and international agencies. Among them, the FBI has the highest priority in countering atrocities, drugs, organized crime, foreign counterintelligence, violent crime and white-collar crime.

The National Security Agency (NSA) is the highest-level intelligence agency in the United States. It is also the intelligence agency with the largest expenditure and the largest number of employees in the United States. More than 90% of the intelligence received by the U.S. government comes from the National Security Agency. On the surface, the NSA is a department of the Department of Defense, but in fact it is a department under the direct control of the president. It is the center of all intelligence agencies in the United States and can supervise U.S. intelligence agencies and senior officials, including the CIA and the FBI.

The White House is the official residence and office of the President of the United States, located on Pennsylvania Avenue in Washington. The official White House website is mainly responsible for publishing news, cabinet appointments, offices and major speeches, including biographies, videos, photo tour papers.