Ahrefs

This particular site, when analyzed in Site Explorer, shows "No Data" for both backlinks and referring domains.&nbsp;

<b>How then can this domain have a UR of 0.9 and a DR of 54 without any data on backlinks?</b>

It turns out that this particular domain has 21K backlinks and 798 referring domain going to the non-www version.&nbsp;

This explains why the domain has a value for UR/DR.&nbsp;

Mozilla has a <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Choosing_between_www_and_non-www_URLs" rel="nofollow noopener noreferrer" target="_blank">great article on why</a>. I'll encourage you to read it. 

The next time you're analyzing your site (or another site) in Site Explorer, make sure you check both www and non-www versions to see if there are any discrepancies.&nbsp;

If you still see "No Data" after checking both cases, please contact support and we'll take a look at it for you.&nbsp;

- The next time you're analyzing your site (or another site) in Site Explorer, make sure you check both www and non-www versions to see if there are any discrepancies.&nbsp;
- If you still see "No Data" after checking both cases, please contact support and we'll take a look at it for you.&nbsp;

<a href="https://help.ahrefs.com/ahrefs-terminology/why-is-a-pages-ur-higher-than-the-dr">Why is a page's UR higher than the DR?</a>

<a href="https://help.ahrefs.com/ahrefs-terminology/my-competitor-doesnt-have-links-from-high-dr-sites-so-why-are-his-dr-and-ahrefs-rank-higher-than-mine">My competitor doesn't have links from high-DR sites, so why are his DR and Ahrefs Rank higher than mine?</a>

<a href="https://help.ahrefs.com/ahrefs-terminology/why-has-there-been-a-drop-in-my-domain-rating-dr-recently-did-your-crawl-algorithm-change">Why has there been a drop in my Domain Rating (DR) recently? Did your crawl algorithm change?</a>

- <a href="https://help.ahrefs.com/ahrefs-terminology/why-is-a-pages-ur-higher-than-the-dr">Why is a page's UR higher than the DR?</a>
- <a href="https://help.ahrefs.com/ahrefs-terminology/my-competitor-doesnt-have-links-from-high-dr-sites-so-why-are-his-dr-and-ahrefs-rank-higher-than-mine">My competitor doesn't have links from high-DR sites, so why are his DR and Ahrefs Rank higher than mine?</a>
- <a href="https://help.ahrefs.com/ahrefs-terminology/why-has-there-been-a-drop-in-my-domain-rating-dr-recently-did-your-crawl-algorithm-change">Why has there been a drop in my Domain Rating (DR) recently? Did your crawl algorithm change?</a>

Find out why we show a numerical value for DR/UR even though the domain has 0 referring domains or backlinks.

Related: