Trust Flow

As one of Majestic's trademarks, Trust Flow is a quality-based score represented by a numerical value between 0 and 100. Based on a manual review of the internet, Majestic has compiled a list of trusted seed sites. This process forms the foundation of Majestic’s Trust Flow metric. Sites closely connected to these trusted seed sites receive higher scores, while those with potentially suspicious links receive significantly lower scores.

Citation Flow

Citation Flow is a trademark of Majestic. Citation Flow is a metric used to measure the "link equity" or "influence" of a website or link, with a score range of 0 to 100. Citation Flow must be used in conjunction with Trust Flow. Together, Citation Flow and Trust Flow form Majestic’s Flow Metrics algorithm.

Citation Flow represents an evolutionary leap from the ACRank metric, as it estimates the influence of a URL based on the number of websites linking to it. Not all links carry equal weight, and since strong links have a relatively greater impact on a URL’s influence, Citation Flow is based on a more advanced iterative mathematical logic compared to the previous ACRank metric.

The term "backlink" translates to 「反向連結」 in Chinese, referring to "a link from another website pointing to your site." In English, it is sometimes also called an "Inbound Link." When writing articles and referencing related information or citing others’ work, adding a hyperlink pointing to the external website allows interested readers to visit that site. Such a hyperlink is considered a backlink for the linked website.

Referring domains refer to the total number of domains from which a website’s backlinks originate. This differs from the total number of Backlinks. For example, if a website publishes 1,000 backlinks within a single domain, the Backlinks count would be 1,000, while the Referring domains count would be 1. This data reminds us that backlink distribution must prioritize diversity.

Ref IPs and Ref Subnets are more stringent metrics for evaluating backlink quality than Referring domains. Ref IPs refers to the number of unique IP addresses from which backlinks originate, while Ref Subnets refers to the number of IP subnets from which backlinks originate. These two metrics more accurately reflect the independence and naturalness of backlink sources.

Indexed URLs refer to the number of web pages indexed by search engines, while Crawled URLs refer to the number of web pages crawled by search engine spiders. These two metrics reflect a website’s visibility and health in search engines. The relationship between the number of Indexed URLs and Crawled URLs can help website administrators understand how well their site is being indexed by search engines. A significantly lower number of Indexed URLs compared to Crawled URLs may indicate content quality issues, while too few Crawled URLs may suggest crawlability obstacles.