Is domain authority a Google ranking factor?
No. Google does not use a domain authority score. It is a metric created by SEO tools to estimate link strength. The links behind the score do matter to search engines, which is why the number is a useful guide.
What is a good domain authority score?
It depends on your competitors. A score of 30 is strong in a niche where the top results sit around 20, and weak where they sit around 60. Check the sites that rank for your main searches and aim to close the gap over time.
Why is my score different in other tools?
Every tool builds its own map of the web's links and has its own formula, so scores never match exactly. Compare like with like: use one tool over time, and check competitors in the same tool.
Why does my Duality report show different numbers?
Duality's monthly reports use a different data source for domain trust, backlinks and referring domains, so the figures can differ from this free checker. Use each on its own for tracking changes over time.
What is the difference between backlinks and referring domains?
A backlink is a single link to your site. A referring domain is a website that links to you, however many times. If one site links to you 500 times, that is 500 backlinks but one referring domain.
Why does my new site show a score of 0?
A score of 0 usually means few or no other websites link to the domain yet, which is normal for a new site. It does not mean anything is wrong. It rises as you earn links from other sites.
How can I improve my domain authority?
Earn links from relevant, trusted websites. Publish content that is useful enough to be cited, build real relationships with partners and suppliers, and steer clear of paid links. It is a slow process, and a steady one works best.
Do you store the domains I check?
We do not keep a list of what people check. To save repeat lookups, a domain and its three figures are held in temporary memory for up to 24 hours, and your address is used briefly to limit how many checks one visitor can run in an hour.
Is there a limit on how many checks I can run?
Yes. To keep the tool free for everyone, each visitor can run a limited number of new checks an hour, and there is a daily limit across the site. If you hit a limit, try again later.