Page Authority vs Domain Authority: Simple Explanation

Page authority vs domain authority comes down to one difference: page authority (PA) predicts how well a single page will rank, while domain authority (DA) predicts how well your entire website will rank. Both are 0–100 scores created by Moz — not Google. One page stuck? Check its PA. Whole site trailing competitors? Check your DA.

Paste a URL into any SEO tool and these two numbers stare back. Most small business owners shrug and move on. But they’re worth five minutes — once you know what each measures, you stop spending money on the wrong things.

What Is Domain Authority, Really?

Domain authority is Moz’s best guess at how likely your whole website is to rank. It’s a 1–100 score built mostly from your backlink profile — how many different sites link to you, and how strong those sites are. Moz feeds about 40 signals into a machine learning model and hands you one number.

Here’s what most guides bury: Google does not use domain authority. It’s a third-party estimate, and Google has said so repeatedly. High-DA sites almost always have strong backlink profiles, though — and strong backlinks genuinely help rankings. Think of DA as a weather forecast: not the weather itself, but usually pointing the right way. We covered the metric in depth in our 2026 domain authority guide.

One quirk: the scale is logarithmic. DA 20 to 30 might take months of solid work; DA 70 to 80 could take years. Every extra point gets harder.

What Is Page Authority, and Why Should You Care?

Page authority is the same idea, zoomed in. Instead of scoring your whole website, it scores one specific page. Same 1–100 scale, same logarithmic logic, same creator (Moz).

This matters because Google ranks pages, not websites. A site with modest DA can still have pages ranking beautifully — if those pages earned their own quality backlinks and are properly optimised. Seen a tiny blog outrank a giant brand for one keyword? Higher page authority on that one page is often why.

Your homepage usually carries the highest PA on your site, since most external links point there. In contrast, a new blog post starts at PA 1 and climbs only as it earns its own links. That’s normal — smart site owners build authority for the pages that need to rank, not just “the site” in the abstract.

Page Authority vs Domain Authority: The Key Differences

Put page authority vs domain authority side by side and the confusion clears up:

• Scope: DA measures your entire domain. PA measures one URL.
• Built from: DA leans on your whole backlink profile — total linking root domains, site-wide link quality. PA leans on links to that specific page, plus its on-page optimisation.
• Best used for: DA is for competitor benchmarking and vetting link prospects. PA is for page-level decisions — which pages deserve a link-building push.
• Changes with: DA moves when your site’s overall link profile grows. PA moves when one page earns links or gets better optimised.
• What they’re not: neither is a Google ranking factor. Moz invented both; Google never sees either number.

So which should you track? Use DA as your compass and PA as your to-do list. Track DA to benchmark against competitors and measure long-term growth. Track PA to decide where effort goes — the page with the biggest gap between its PA and the competition’s is where your link-building budget goes.

The Big Mistake: Treating These Scores Like Google Grades

Some SEO “experts” sell packages to “raise your DA to 50.” Red flag. DA and PA are predictive estimates, not levers you pull. As a result, you do the real work and the number follows. Moz’s own guide to domain authority states the metric is not used by Google in determining rankings.

For example, if an agency promises to “boost your domain authority,” ask what actual work they’re doing. Vague answer? Keep your wallet closed. Real authority-building is content people genuinely link to plus white-hat link building — the only kind that lasts.

How to Improve Page Authority in 2026

Above all, PA is the more actionable of the two — you’re strengthening one page, not boiling the ocean:

• Earn links directly to the page — not your homepage, the URL you want to rank.
• Link to it internally. A buried page with no internal links is starved; an internal-linking audit often finds a site’s easiest wins.
• Nail the on-page fundamentals — title tag with your keyword, descriptive headings, genuinely useful content, fast loading. See the on-page SEO checklist.
• Keep it fresh. Updated pages hold rankings better. A 2023 page you never touched is quietly losing ground.

How to Improve Domain Authority (Without Wasting Money)

Essentially, raising DA is the long game — no shortcuts. What works is boring and consistent:

• Publish content worth linking to — original research, genuinely useful guides, tools. This also powers a good content cluster strategy, where pillar pages attract links and pass strength to surrounding pages.
• Earn backlinks from real, relevant websites. One link from a respected industry site beats fifty from random directories.
• Clean up toxic links. Disavow the worst spammy links so the metric reflects reality.
• Be patient — and benchmark properly. Meaningful DA movement takes three to six months. And compare like with like: DA 30 means little alone, but everything if your competitors sit at 25.

FAQs

Is page authority a Google ranking factor?

No. Page authority is a third-party score created by Moz that estimates how well a single page might rank. Google has never used it in its ranking systems, so treat page authority as a rough guide for comparing pages, not as something Google rewards directly.

What is the difference between page authority vs domain authority in simple terms?

The difference between page authority vs domain authority is scope: page authority scores one page’s ranking strength, while domain authority scores your entire website’s ranking strength. Both are Moz metrics on a 1–100 logarithmic scale, and neither is used by Google.

What is a good page authority score?

A good page authority score depends on your competition. Check the PA of the pages currently ranking for your target keyword — if they’re at PA 35 and yours is at PA 20, that’s your gap to close. For most small business pages, anything above PA 30 is competitive in local and niche searches.

Can a page rank well if the domain authority is low?

Yes. Google ranks individual pages, so a well-optimised page with strong page authority and relevant, high-quality backlinks can outrank pages on higher-DA websites. This happens regularly in niche topics where a specialist site beats a big generalist one, because page-level strength beats domain-level averages when the query is specific.

How do I check my page authority and domain authority for free?

Use Moz’s Link Explorer, which allows a limited number of free lookups per day. Enter any URL to see its page authority, and your root domain to see domain authority. Free SEO browser extensions also display both metrics while you browse.

Conclusion

In short, page authority vs domain authority isn’t a rivalry — it’s a zoom level. DA shows how strong your website is as a whole; PA shows how strong one page is. Benchmark with DA, act with PA, and never pay anyone just to “raise your DA.”

This week, pick the one page that matters most to your business, check its page authority against the pages outranking it, and close the gap with a few quality links. That’s a Monday-morning SEO plan that works.