Semrush is known as one of the most reliable and accurate data tools available. Semrush has a huge database of over 24.7 billion keywords, 808 million domains and 43 trillion links. Semrush's data is obtained through a variety of reputable sources, including its own website crawlers, third-party providers and data partnerships with other companies. While Semrush is not 100% accurate, it is a great place to get data to make more intelligent decisions.