Domain Authority & Page Authority Checker
Enter up to 50 domain names, one per line, to analyze their metrics.
What Is a Bulk DA PA Checker?
A bulk DA PA checker is a free SEO tool that lets you check the Domain Authority (DA), Page Authority (PA), and Spam Score of multiple websites simultaneously — rather than checking one at a time. BulkDapa.site checks up to 50 domains at once using Moz’s official Link Explorer API, giving you instant, accurate authority metrics to support link building, competitor research, and backlink auditing.
BulkDapa’s checker returns five key data points for every domain: DA (domain-wide authority), PA (page-level authority), Spam Score (risk indicator), Inbound Links (total external pages linking in), and Outbound Links (total links pointing out). Together, these give you a complete picture of any website’s link profile strength.
Whether you’re an SEO professional qualifying link-building prospects, a digital marketer evaluating guest posting opportunities, or an agency running competitor audits for clients — bulk DA/PA analysis saves hours of manual checking. Instead of entering domains one by one across multiple tabs, you paste your list and get every metric in seconds.
What Is Domain Authority (DA)?
Domain Authority (DA) is a score from 1 to 100, developed by Moz, that predicts how likely an entire website (domain) is to rank in Google search results. It is based on the strength of the domain’s backlink profile — how many quality sites link to it and from how many unique referring domains. DA is not used by Google; it is a third-party comparative metric.
DA was created by Moz as a way to give SEOs a standardised, comparable number for evaluating website strength. Because Google does not make its PageRank data public, domain authority metrics from Moz (DA), Ahrefs (DR), and Semrush (AS) have become the industry’s go-to proxies for measuring a site’s competitive standing.
How is DA calculated?
Moz calculates DA using a machine-learning model that evaluates a range of link-based signals, including the total number of inbound links, the number of unique linking root domains, the quality and trustworthiness of those linking sites, and patterns in the domain’s overall link structure. The result is expressed on a logarithmic 1–100 scale — which means moving from DA 20 to DA 30 is far easier than moving from DA 70 to DA 80.
Key things to know about DA
- DA is comparative, not absolute. A DA of 35 may be excellent in a niche market but average in a highly competitive vertical like finance or SaaS.
- DA fluctuates. Because Moz regularly updates its link index and DA is measured relative to all domains in the index, your score can change even if nothing on your site has changed.
- High DA ≠guaranteed rankings. DA reflects backlink profile strength, not content quality, keyword targeting, or technical SEO — all of which also affect where you rank.
- DA is not a Google ranking factor. Google has confirmed it does not use Moz’s DA in its algorithm. However, the underlying signals DA measures — quality backlinks — are genuine ranking factors.
Pro tip:Â Instead of chasing a high absolute DA number, focus on outpacing your direct competitors. If you rank on page 1 for your target keywords, your DA is already “good enough.”
What Is Page Authority (PA)?
Page Authority (PA) is a Moz metric scored from 1 to 100 that estimates the ranking potential of an individual webpage URL. Unlike Domain Authority, which reflects the entire domain’s link strength, PA measures only the inbound links pointing to that specific page. Higher PA indicates that a page has strong link equity and is more likely to rank well in search results.
PA is particularly valuable for page-level SEO decisions. When you’re building internal links, selecting which pages to promote in outreach campaigns, or deciding where to point a guest post backlink, PA tells you which pages on a domain carry the most authority weight.
How to Use BulkDapa's Bulk DA PA Checker?
What Is Spam Score and Why Does It Matter?
Spam Score is a Moz metric expressed as a percentage (1%–100%) that estimates how likely a domain is to be associated with spammy or low-quality behaviour, based on patterns shared by domains that were penalised or deindexed by Google. A lower Spam Score is better. It is not a Google penalty, but it is a reliable signal for evaluating backlink risk.
Moz calculates Spam Score using 27 spam-related signals — patterns it found to be common among penalised websites. These include thin content, suspicious TLDs, over-optimised anchor text, low referring domain counts, and weak brand signals. A high Spam Score doesn’t automatically mean a site is harmful, but it warrants a closer look before you pursue a backlink from it.
Who Uses BulkDapa's DA PA Checker?
SEO Professionals & Agencies
Run bulk competitor audits, qualify link-building prospect lists, and produce data-backed client reports — without switching between tools. Check 50 domains in the time it takes to check one manually.
Link Builders
Screen guest posting targets and link insertion opportunities in bulk. Filter out high-spam, low-DA domains before investing time in outreach. Focus your effort on links that will actually move the needle.
Digital Marketers
Evaluate publisher authority before committing to digital PR placements, sponsored content, or partnership deals. Ensure every placement aligns with your brand’s quality standards.
Content Creators & Bloggers
Identify which domains to target for guest posting opportunities. Check how your own site’s authority compares to competitors. Track your DA growth over time as your content strategy matures.
Affiliate Marketers
Vet potential backlink sources before building links. Spot high-spam domains that could put your affiliate site at risk. Identify authority sites in your niche for targeted outreach.
In-House SEO Teams
Benchmark your domain against direct competitors on a recurring basis. Track link profile health, monitor for sudden DA drops, and build evidence for internal SEO investment decisions.
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Frequently
Asked Questions
Domain Authority (DA) is a score from 1 to 100, developed by Moz, that predicts how likely a website is to rank in search engine results based on its backlink profile strength. Higher DA indicates stronger ranking potential. DA is best used as a comparative metric — measure your domain against direct competitors, not global giants. It is not a Google ranking factor.
Page Authority (PA) estimates the ranking potential of a specific webpage URL. Also scored 1–100 by Moz, PA measures the link signals pointing to that individual page. It is useful for identifying which of your pages carry the most link equity, prioritising internal linking strategy, and evaluating the specific page that will host a backlink — not just the overall domain.
A good DA score is relative to your niche and competition. DA 1–20 is typical for new sites. DA 21–40 is moderate. DA 41–60 reflects a well-established site. DA 61+ is high authority. DA 81–100 is reserved for major global brands and publications. The right benchmark is your direct competitors — not an arbitrary target number.
No. Google does not use Moz's DA or PA metrics in its ranking algorithm. Google has confirmed this publicly. However, the practices that increase DA — earning high-quality backlinks from authoritative, relevant sites — are genuine Google ranking factors. Improving DA often correlates with improved rankings because both respond to the same underlying SEO work.
Increase DA by earning high-quality backlinks from authoritative, relevant sites; publishing original, link-worthy content (data studies, guides, tools); maintaining a clean backlink profile by auditing and disavowing toxic links; improving internal linking; and ensuring your site is technically sound. DA improvements are gradual — expect 3–12 months of consistent effort before significant movement.
Moz updates DA and PA regularly as new link data is processed in the Moz Link Explorer index. Scores can fluctuate even without changes to your own site, because DA is comparative — shifts in competitor link profiles, gained or lost backlinks, or updates to Moz's index size can all affect your score. Check your DA periodically rather than day-to-day.