Compare Domain Authority
Put up to 4 websites side by side and see who wins on every metric.
Put competitors side by side
Enter 2 to 4 domains. Each domain uses one check.
Understanding the metrics
No single number tells the whole story. Read authority, trust and age together to judge how competitive a domain really is.
- Domain Authority1 to 100
- Predicts how likely a whole domain is to rank in search results, based on the quality and quantity of its linking root domains. It is logarithmic: moving from 70 to 80 is much harder than 20 to 30.
- Trust Flow0 to 100
- Measures link quality by how closely a site is linked to a hand-reviewed set of trusted seed sites. Higher means the backlink neighborhood is more reputable.
- Citation Flow0 to 100
- Measures link volume and influence without judging quality. Read it alongside Trust Flow: a TF/CF ratio near or above 1 suggests a clean profile.
- Domain AgeYears
- Time since the domain was first registered, taken from its live WHOIS record. Older domains tend to have deeper link histories, though age alone does not drive rankings.
- Spam Score1 to 100%
- The share of sites with similar features that Google penalized or banned. 1 to 30% is low; above 60% means the site's links and content deserve a closer look.
- Referring DomainsCount
- Unique websites linking to the domain. Usually a stronger authority signal than the raw backlink total.
Frequently asked questions
How many websites can I compare?
Up to 4 domains side by side. Each domain in a comparison uses one check from your pack, and a domain that can't be checked gives its check back.
How is the winner decided?
For each metric the best value is highlighted: highest for authority, Trust Flow, backlinks and age, lowest for Spam Score. The domain with the most wins is shown as the overall leader.
Do I need an account to compare domains?
Yes. Comparison is a Pro feature included with every check pack, so it needs an account that holds your checks.