Trust Flow is a link quality metric developed by Majestic, a British company specializing in backlink profile analysis. Unlike measures based mainly on the number of inbound links, Trust Flow tries to estimate how trustworthy a site is by looking at the quality of its linking sources. The underlying idea is simple: a site that receives links from authoritative and trustworthy pages tends to be considered more trustworthy than a site that receives links from low-quality pages.
The score is expressed on a scale from 0 to 100 and is based on a graph of manually selected reference sites considered particularly trustworthy. The closer a domain’s backlink profile is to these trust references, the higher its Trust Flow. The metric is often used together with Citation Flow, another Majestic index that instead measures the overall influence of links, regardless of their quality.
What the trust score expresses
Trust Flow tries to quantify the trust that a page or domain conveys, starting from the assumption that the quality of sources matters more than their quantity. A site with many links from pages with a poor reputation can have a high Citation Flow but a low Trust Flow. Conversely, a site with few links but from authoritative sources can show a relatively high Trust Flow.
The metric is available both at the URL level and at the domain level, and this allows you to separately assess the popularity of a single page and the overall reputation of an entire site. This two-level analysis is useful when you want to understand whether a single piece of content has attracted quality links or whether authority is distributed evenly across the domain.
The starting sources and propagation along links
Majestic builds a model based on a set of sites considered trustworthy, defined as starting points of trust. Trust is then propagated along hyperlinks: a link from a trustworthy page conveys more trust than a link from a less trustworthy page. The calculation also takes into account the distance between the analyzed site and the reference sites, as well as the overall quality of the sources.
The result is a score between 0 and 100. Very low values indicate a weak or suspicious link profile, while high values suggest a solid profile well connected to authoritative sources. Keep in mind that Trust Flow is a proprietary estimate and not an absolute value: it reflects Majestic’s model and can change over time as the index is updated.
Difference between Trust Flow and Citation Flow
Citation Flow measures a site’s influence based on the number and relevance of links citing it, without weighing the quality of the sources too much. Trust Flow, on the other hand, focuses on the quality and reliability of the sources themselves. A profile with high Citation Flow and low Trust Flow is often considered unbalanced, because it suggests many links but of poor quality.
A third-party indicator, not a ranking factor
Trust Flow is not a ranking factor for Google or other search engines. It is a third-party metric, calculated on Majestic’s index, useful especially for competitive analysis and for evaluating potential link partners. There is no public evidence that a high Trust Flow corresponds to better rankings: it should be read as an estimate of link profile quality, not as a result.
For this reason, many SEO professionals use it as a quality indicator when deciding whether to accept a link exchange, evaluate a domain to buy, or analyze competitors. However, it should be interpreted together with other metrics, such as domain authority, organic traffic, and topical relevance.
Why it shouldn’t be used alone
A single Trust Flow value doesn’t tell the whole story. A high score can come from a limited number of very authoritative links, while a medium score spread across many relevant sources can be just as useful. For a correct assessment, it’s best to cross-reference multiple indicators and observe the industry context.
Trust Flow, Citation Flow and other metrics compared
| Metric | Provider | Scale | What it estimates |
|---|---|---|---|
| Trust Flow | Majestic | 0–100 | Quality and reliability of link sources, according to the Majestic model |
| Citation Flow | Majestic | 0–100 | Overall influence of links, according to the Majestic model |
| Domain Authority | Moz | 0–100 | Ranking potential of a domain, according to the Moz model |
| Domain Rating | Ahrefs | 0–100 | Strength of a domain’s backlink profile, according to the Ahrefs model |
They are all estimates from their respective providers, calculated on their page indexes: they are not Google data, and values from different providers are not comparable with each other.
Working on the quality of inbound links
You don’t work on Trust Flow itself, but on the quality of inbound links and the domain’s reputation: the score is a reflection of that, not a goal. There are no reliable shortcuts, and artificial practices, such as massively buying low-quality links, bring no benefits. Here are some steps consistent with a healthy SEO approach.
- Publish original and useful content that can attract spontaneous links from authoritative sources.
- Focus on the topical relevance of links, favoring sites in the same or related industries.
- Obtain mentions and links from publications, universities, trade associations, and recognized portals.
- Disavow links from spam networks only when there is a manual action or a concrete risk: Google ignores most low-quality links on its own.
- Periodically monitor the backlink profile with dedicated analysis tools.
- Avoid massive and irrelevant link exchanges, which can appear unnatural.
- Build lasting relationships with other sites in your industry, instead of aiming for a single isolated link.
- Maintain content quality over time, because reputation is built slowly.
Frequently asked questions about Trust Flow
What exactly is Trust Flow?
It is a link quality metric developed by Majestic that estimates how trustworthy a site is based on the quality of its linking sources, on a scale from 0 to 100.
Does Trust Flow directly influence Google rankings?
No, it is not an official ranking factor. It is a third-party metric useful for analysis, but it does not directly determine position in search results.
What is a good Trust Flow value?
There is no universal threshold: the value should be interpreted in relation to the industry and competitors, and it only holds within the Majestic model. Generally, a higher score indicates, for Majestic, a link profile closer to sources considered trustworthy.
Why is Trust Flow low while Citation Flow is high?
This combination suggests many links but of modest quality. It indicates an unbalanced profile, where influence is not accompanied by genuinely authoritative sources.
Can Trust Flow be increased quickly?
No, a stable improvement takes time and depends on the quality of the links obtained. Artificial strategies risk worsening the domain’s reputation.
Where can I check a site’s Trust Flow?
The value is available through Majestic’s tools and through some SEO analysis platforms that integrate the provider’s data.
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Related entries:
TrustRank Citation Flow PageRank Backlink Link building Toxic links