Bulk DA PA Checker
Domain Authority Tool

Understanding Domain Authority & Page Authority in SEO

If you have spent any time in the world of search engine optimisation, you have almost certainly heard the term Domain Authority, or DA. Originally developed by Moz, Domain Authority is a logarithmic score on a scale from 1 to 100 that attempts to predict how likely a website is to rank on search engine result pages. A brand-new site typically starts around 1, while industry giants like Wikipedia and Google regularly score above 90. The key takeaway is that DA is not a Google ranking factor — it is a third-party estimate that acts as a proxy for overall link equity, trustworthiness, and site maturity.

Page Authority (PA) works on the same 1–100 scale but zooms in from the domain level to an individual page. So your homepage might have a high DA, but a recently published blog post on the same domain could have a lower PA until it accumulates backlinks of its own. Both scores are calculated using machine learning models trained on thousands of real-world search results and backlink data, which is why they correlate well with actual rankings even though they are estimates.

So how do you actually use these metrics? First, they are invaluable during competitor research. Before you begin a content or link-building campaign, benchmarking your DA against competing sites tells you how much ground you need to cover. If a competitor has a DA of 60 and you sit at 28, you know you need a focused backlink acquisition strategy before you can reliably outrank them for competitive keywords. Second, DA and PA guide outreach decisions. When you are seeking guest posting opportunities or link partnerships, targeting sites with a DA above your own is the standard rule of thumb, since a link from an authoritative domain passes more link equity your way.

For example, suppose you run a health and wellness blog with a DA of 35. Earning a single backlink from a government health portal with a DA of 85 is likely to move your DA meaningfully within a few months. Conversely, collecting hundreds of links from low-DA spam sites can actually hurt your spam score and, over time, your organic rankings. This is why tracking your spam score alongside DA is equally important — a spam score above 30 is a red flag that warrants a backlink audit.

Our Bulk DA PA Checker makes this analysis fast and accessible. Rather than checking domains one by one inside a paid dashboard, you can paste up to 10 URLs and receive DA, PA, spam score, estimated backlink counts, referring domain numbers, and monthly traffic estimates in seconds. Results are powered by our strong AI backend logic to fetch metrics from different LLM Models — ensuring you almost always receive data even when a single provider is temporarily unavailable. Export the data to CSV or JSON for seamless integration with your existing SEO reports, spreadsheets, or CRM workflows. Whether you are an agency auditing client portfolios, an in-house SEO tracking quarterly progress, or a founder evaluating acquisition targets, a quick DA and PA check belongs in your regular toolkit.