DR vs DA: Which Metric Matters More?

DR (Ahrefs Domain Rating) and DA (Moz Domain Authority) both try to answer the same basic question, how strong is this site’s backlink profile, but they’re built by different companies, on different link indexes, using different formulas. That’s why the same website can show DR 45 on Ahrefs and DA 30 on Moz at the exact same time. Neither number is “wrong.” They’re just measuring the same general idea with different data and different math.

The Core Difference

DR comes from Ahrefs, which maintains one of the largest independent web crawlers and link indexes in the industry. DA comes from Moz, which pioneered domain-level authority scoring back in 2010 and rebuilds its model periodically using machine learning trained against real Google ranking data. Both are 0-100 (DA technically starts at 1) logarithmic scales, meaning early gains come easier than later ones on both.

Because the underlying link indexes differ in size and coverage, a site can look stronger on one platform than the other simply based on which links each crawler happened to discover. Neither company publishes Google’s actual index, so both are estimates built from their own crawl data, not a direct measurement of how Google itself sees your site.

Which One Should You Actually Trust?

Neither, exclusively. Treat both as directional signals, not precise scores. If DR and DA broadly agree (both moderate, both high, both low) that’s a reasonably consistent read on your site’s link authority. If they disagree sharply, one very high and one very low, that’s worth investigating rather than trusting either number blindly. It sometimes points to a link profile that’s strong in ways one crawler weighs heavily and the other doesn’t.

Why Both Show Up in Guest Post Pricing

Because different buyers use different tools, link marketplaces and guest post sellers often list both DR and DA side by side to appeal to whichever metric a given buyer trusts. If you’re the one buying links, check both numbers rather than relying on whichever one the seller chose to lead with in their pitch, since sellers naturally highlight whichever number looks best for their inventory.

DR and DA When Choosing a Guest Post Vendor

When comparing guest post packages from different vendors, ask for both DR and DA on the exact page your link would sit on, not the domain’s homepage. Vendors sometimes advertise their strongest homepage numbers while your link actually lands on a weaker, less-linked category or archive page deep in the site’s structure, which carries far less of the authority the pricing implied.

How This Plays Out When Comparing Competitors

When we run a competitor analysis for a new client, we pull both DR and DA rather than picking one. If a competitor shows DR 50 and DA 25, that gap tells us their Ahrefs-visible link profile is stronger than what Moz’s index has picked up, which can mean a lot of links from sites Moz hasn’t fully crawled yet. If the numbers run the other way, DA well above DR, it can suggest an older link profile that Moz’s long-running index has tracked more thoroughly than Ahrefs has. Neither pattern is automatically good or bad, but it’s a useful clue about where a competitor’s link building history actually comes from.

How We Use Both Metrics in Client Reporting

When we report progress to clients running a Domain Rating or Domain Authority campaign, we show both numbers on the same dashboard rather than picking one to highlight. It’s more transparent, and it protects clients from a common sales trick where an agency only reports whichever metric happens to be climbing fastest that month while quietly ignoring the other. If a campaign is genuinely working, both numbers should trend upward together over a few months, even if they move at slightly different speeds.

A Practical Example

We regularly see sites with DR 55 and DA 28, or the reverse, DR 30 and DA 48. Neither combination is unusual. What we actually look at when evaluating a potential guest post site is the full picture: DR, DA, real organic traffic, topical relevance to the client’s niche, and Trust Flow if the gap between DR and DA looks unusually wide. A single metric in isolation rarely tells the whole story.

Tracking Both Metrics Over Time

Rather than checking DR and DA once and forgetting about them, we recommend logging both monthly during an active link building campaign. Watching the trend line matters more than any single snapshot, since both metrics fluctuate slightly from crawl updates and index changes that have nothing to do with your actual campaign progress. A steady upward trend across a few months is a far more reliable signal than a single day’s number.

Do They Both Matter for Rankings?

Indirectly, and about equally. Neither DR nor DA is a confirmed Google ranking factor. Both correlate with ranking ability because both are shaped by genuine backlink quality, which Google’s own algorithms do value. Chasing either number in isolation, without matching content quality and search intent, won’t move rankings on its own.

A Word on Vendor Marketplaces That Only Quote One Metric

Some backlink marketplaces list sites using only DR or only DA, whichever number happens to look more impressive for that particular site. If a vendor consistently quotes just one metric without mentioning the other, check both yourself before buying, since cherry-picking the more flattering number is a common, low-effort way to make an average site look stronger than it is.

How Fast Each Metric Typically Updates

Ahrefs recalculates DR roughly every few days as its crawler processes new data. Moz updates DA on a slower cycle, sometimes taking a few weeks to reflect new links or losses. This means DR often reacts to a new backlink campaign faster than DA does, which is worth knowing if you’re tracking progress and DA seems to be lagging behind visible DR movement.

Frequently Asked Questions

Why is my DR so much higher than my DA, or the other way around?

Different crawl data and different formulas. It’s normal for the two numbers to diverge somewhat, especially for smaller or newer sites where each platform’s index has discovered a different subset of your total backlinks.

Should I optimize for DR or DA specifically?

Optimize for genuinely relevant, high-quality backlinks. Both DR and DA tend to rise together when link building is done well, since they’re both responding to the same underlying signal: real link authority.

Which metric do link buyers care about more?

It depends on the buyer. Some agencies and marketplaces lead with DR, others with DA. Serious buyers typically check both plus real organic traffic before deciding a link is worth the price.

Can I raise DR and DA at the same time with the same links?

Yes, generally. A genuinely strong, relevant backlink usually helps both metrics simultaneously, since both are responding to the same underlying link quality, just measured through different formulas.

Our link building campaigns are built around genuinely relevant, high-quality placements that move both metrics together, not one at the expense of the other. Compare our Domain Rating service and Domain Authority service to see which framing fits how you’re currently tracking progress.