DA PA Checker
Know a domain’s ranking power before you link to it.
Check Domain Authority, Page Authority, and Spam Score for any website in seconds — then read what each number actually means for SEO and how to move it.
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What is Domain Authority (DA)?
Domain Authority is a 0–100 score that predicts how likely an entire website is to rank in search engine results, relative to other websites. It was originally developed by Moz and has since become an industry shorthand for “how strong is this site’s overall link profile.”
DA is built almost entirely from backlink data: how many unique domains link to a site, how authoritative those linking domains are themselves, and how the link profile compares to the rest of the web. A new blog with a handful of links might sit around DA 10–15, while an established publisher with thousands of high-quality backlinks can sit above DA 80.
- It’s logarithmic, not linear. Moving from DA 20 to DA 30 is far easier than moving from DA 70 to DA 80.
- It’s comparative, not absolute. Use it to rank sites against each other, not as a standalone grade of quality.
- It updates periodically. Scores shift as the underlying link index refreshes, not in real time.
What is Page Authority (PA)?
Page Authority uses the same scoring logic as Domain Authority, but narrows the focus to a single page instead of an entire domain. A site can carry a strong overall DA while individual pages on it still score low PA, if those specific pages haven’t earned many direct links of their own.
When DA matters more
Evaluating a whole site before a partnership, sponsorship, or large-scale outreach campaign.
When PA matters more
Judging one article or landing page for guest posting, or comparing two specific URLs competing for the same keyword.
What is Spam Score?
Spam Score is a 0–17 count of risk flags associated with websites that have historically been penalized or de-indexed by search engines. Each flag represents a trait common to low-quality or spammy sites: things like a thin link profile, an unusually high ratio of outbound links, or a domain name pattern frequently seen in link farms.
A low Spam Score doesn’t guarantee a site is trustworthy, and a moderate score doesn’t always mean a site is harmful — but a high Spam Score is a useful early warning before you build a backlink, accept a guest post, or recommend a vendor.
- 0–4 flags: Typical for most legitimate, established websites.
- 5–7 flags: Worth a manual look — check the site’s content and outbound links before engaging.
- 8+ flags: Higher risk. Common among expired domains repurposed for link schemes.
How these metrics affect your SEO strategy
None of these scores are direct Google ranking factors — Google has confirmed it doesn’t use DA, PA, or Spam Score in its own algorithm. Their value is practical, not algorithmic: they give SEOs, link builders, and content marketers a fast way to compare websites against each other when search engines won’t show their cards.
In day-to-day work, that shows up in a few places: vetting guest post opportunities before contributing content, auditing a backlink profile after a Google update, screening directories or sponsorship sites before paying for a placement, and benchmarking your own site against competitors ranking for the same keywords.
How to improve Domain Authority
- Earn links from a range of domains, not just a high volume from one or two sources — diversity matters more than raw count.
- Prioritize quality over quantity. One link from an established, relevant site outweighs dozens from low-authority ones.
- Fix or remove toxic backlinks that may be inflating your Spam Score and dragging down trust signals.
- Keep internal linking tight. Strong internal structure helps authority flow to your most important pages.
- Be patient. DA moves slowly by design — sustainable link growth over months, not days.
Frequently asked questions
Is Domain Authority a Google ranking factor?
No. DA, PA, and Spam Score are third-party metrics used by the SEO industry to compare sites. Google does not use them in its own ranking algorithm, though they often correlate loosely with ranking strength since both are influenced by backlink quality.
What’s a “good” Domain Authority score?
It depends entirely on your niche and competitors. A local business site with DA 25 might be perfectly competitive in its space, while a DA 25 news site would be considered weak. Always benchmark against direct competitors, not a fixed number.
Can Domain Authority go down?
Yes. Losing backlinks, having referring domains go offline, or having spammy links attributed to your site can all lower DA over time. It isn’t a score that only increases.
How often does this tool update its data?
Results are pulled live and cached for 24 hours per domain to keep lookups fast, so figures reflect the underlying index’s most recent refresh within that window.