Page Authority is a Moz score from 1 to 100 that predicts how well a single page will rank in search — not your whole site. Here's how it works, how it differs from Domain Authority, and how to raise it safely.
Page Authority (PA) is a score developed by Moz, on a scale of 1 to 100, that predicts how well a single web page will rank in search engine results. It is calculated mainly from that page's backlink profile and the strength of the domain it sits on. A higher PA means the page is more likely to rank. Unlike Domain Authority, which scores your whole site, PA looks at one URL at a time.
Think of it as a credit score for one page rather than the whole company.
Page Authority predicts the ranking strength of an individual page on a 1-to-100 scale. Moz builds the score using machine learning trained on its web index, weighing the page's link signals against actual search rankings. The scale is logarithmic, so early gains (say 10 to 25) come quickly, while pushing a high-PA page even higher takes far more work.
Because PA is page-specific, two URLs on the same website can have very different scores. Your homepage, which usually attracts the most links, will normally carry the highest PA, while a brand-new blog post starts low and grows as it earns links. That's why PA is so useful: it tells you, page by page, where your ranking power actually sits.
They're built the same way and share a scale, but they answer different questions. PA is about one page; DA is about the whole site.
| Page Authority (PA) | Domain Authority (DA) | |
|---|---|---|
| What it measures | A single page / URL | The entire domain |
| Scale | 1–100, logarithmic | 1–100, logarithmic |
| Main driver | Links to that page + domain strength | Links across the whole site |
| Best used for | Forecasting one page's ranking power | Comparing overall site authority |
| Varies within a site? | Yes — page by page | No — one score per domain |
| Google ranking factor? | No (Moz metric) | No (Moz metric) |
DA tells you how strong your website is. PA tells you how strong a specific page is. You raise both the same way — by earning quality backlinks.
PA is link-driven. These are the signals that push a single page's score up or down.
The quality and quantity of external links pointing directly at that specific URL — the biggest factor.
Links to the page from many different trusted websites count for more than repeats from one.
Links to the page from strong pages on your own site pass authority and lift its PA.
A page on a high-DA site inherits a stronger base PA than the same page on a weak domain.
Like DA, "good" is relative to the pages you're competing with in the search results. But here's the general scale to orient yourself.
| PA range | Rating | Typical page | What it means |
|---|---|---|---|
| 0–20 | Poor | New or thin pages | Few links yet — needs to earn authority. |
| 20–40 | Below average | Growing blog posts & pages | Building, but most competitive queries need more. |
| 40–60 | Solid | Established, well-linked pages | Competitive for many keywords. |
| 60–80 | Good | Strong pages on established sites | Ranks well in competitive niches. |
| 80–100 | Excellent | Top pages of major authorities | Among the strongest pages on the web. |
Tip: don't chase a number in isolation. Check the PA of the pages already ranking for your target keyword — that gap is what you actually need to close.
Because PA is link-driven, raising it means earning better links — to the page and to the domain around it.
Build quality backlinks pointing directly at the URL you want to rank — the strongest single lever for PA.
Link to the page from your most authoritative pages so it inherits more internal link equity.
A stronger domain lifts the baseline PA of every page on it — so whole-site authority matters too.
Avoid toxic links and a rising spam score, which drag both PA and rankings down.
The white-hat link building behind our DA service strengthens your domain and your key pages — so PA rises alongside DA, safely. See why it's safe →
Knowing your starting PA tells you which pages already pull weight — and which need links.
Moz's own free tool reports the official PA (and DA) for any URL you enter.
Many third-party DA/PA checkers let you look up a page's score in seconds for quick comparisons.
Send your URL on WhatsApp and we'll tell you your current PA, DA and where the gaps are.
The questions people ask most about Moz PA, answered straight.
Page Authority is a Moz score from 1 to 100 that predicts how well a single web page will rank in search results. It's based mainly on that page's backlink profile and the strength of its domain. A higher PA means the page is more likely to rank.
Page Authority measures the ranking strength of one page; Domain Authority measures the whole domain. Both use Moz's 1–100 logarithmic scale and are driven by backlinks. Pages on the same site can have very different PA, but the site has one DA.
It depends on your competition, but generally: 0–20 is poor, 20–40 below average, 40–60 solid, 60–80 good, and 80–100 excellent. The most useful benchmark is the PA of the pages already ranking for your target keyword.
Earn quality backlinks pointing at that page, add internal links from your strongest pages, raise your overall Domain Authority, and keep your link profile clean. PA is link-driven, so better links are the core of higher PA.
No. PA is a Moz metric, not used directly by Google. However, the quality backlinks that raise PA are the same signals that influence real Google rankings, so building PA the right way still helps.
Moz uses a machine-learning model trained on its web index, weighing a page's link signals — backlinks, unique linking domains and domain strength — against real search rankings, then maps the result onto a logarithmic 1–100 scale.
Use Moz Link Explorer (free) for the official score, or any free third-party DA/PA checker for a quick look. You can also send us your URL on WhatsApp for a free PA and DA check.
Yes. Because a page inherits a baseline from its domain, strengthening your DA with quality links lifts the PA of pages across the site. A single white-hat campaign improves both at once.
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