Trust Flow (TF) and Citation Flow (CF) are metrics developed by Majestic SEO to evaluate the quality and authority of websites and webpages. Trust Flow (TF) measures the quality and trustworthiness of the backlinks pointing to a webpage. It takes into account the authority and credibility of the websites that link to a particular webpage. Websites with a higher Trust Flow are considered more reliable and trustworthy. Citation Flow (CF), on the other hand, measures the quantity of links pointing to a webpage. It provides an indication of the popularity or influence of a webpage based on the number of links it has. CF does not consider the quality or trustworthiness of the links, but rather focuses on the quantity.