Top 5 Bulk Spam Score Checker Tools (Free & Paid)

If you run an agency or manage multiple websites, you know that not all backlinks are equally worthy. Some can actually hurt your SEO and even impact email deliverability. That’s where spam scores come in.

A spam score measures how risky a website or backlink is, based on factors like link quality, domain authority, and previous penalties. High spam scores can indicate toxic links that might harm your rankings or trigger Google penalties. 

For agencies managing multiple domains, checking each link manually is impossible. Bulk spam score checkers save time by analyzing hundreds or thousands of links at once.

In this article, we’ll review the top 5 spam score checker tools, including both free and paid options, so you can quickly identify risky backlinks and protect your sites.

What is a Spam Score?

A spam score tells you how risky a website is. Moz popularized it, and other SEO tools use similar metrics. 

Think of it as a health check for a domain. High scores usually mean spammy links, shady tactics, or a risk of Google penalties.

For agencies and SEOs, spam scores are more than numbers. They guide decisions on which backlinks to pursue and which to avoid.

A single link from a high-risk site can hurt rankings, trigger penalties, or dilute authority. That is why bulk checking spam scores is critical when managing dozens or hundreds of domains.

Different tools use different scales. Moz uses 0 to 17 flags, while others may report percentages or a 1 to 100 score. The takeaway is simple: high equals risky, low equals safe. The details vary, but the concept is the same.

How Spam Score is Calculated

These factors contribute to the overall spam score, helping to identify potential issues that could affect a site’s SEO performance. Moz calculates spam score using 27 spam flags, which include factors like:

• Backlink Profile Signals: Low-quality links, irrelevant sites, over-optimized anchor text, reciprocal link patterns.
• On-Page and Technical Factors: Thin content, hidden text, poor site structure, and other red flags.

Statistical Insight:

According to Moz’s research, sites with more than 14 spam flags have a 100% probability of being considered spam by Google. This highlights the importance of monitoring and addressing spam flags to maintain a healthy SEO profile.

For a deeper understanding of Moz’s spam score and its implications, you can refer to Moz’s official documentation on spam score calculation.

Why Bulk Spam Score Checking is Important

Managing multiple clients or a large backlink portfolio can be overwhelming if you check spam scores one by one. That’s why bulk spam score checking is essential. It saves time, protects your clients, and keeps your campaigns on track.

For agencies and SEOs, bulk checking speeds up audits. You can analyze hundreds of domains in minutes instead of hours, which is a huge efficiency boost for busy teams.

It also filters out toxic domains before outreach. Links from high-risk sites can damage rankings. 

According to Moz data cited by Diib, websites with more than 14 spam flags have a 100% probability of being considered spam by Google. Catching these domains early prevents wasted effort and keeps client campaigns safe.

Finally, it helps manage client link profiles. Regular bulk checks let you maintain a clean backlink profile, safeguard rankings, and improve authority over time. Using bulk spam score tools alongside metrics like domain authority, relevance, and traffic gives a complete picture of link quality.

Top 5 Bulk Spam Score Checker Tools in 2025

If you handle multiple clients or manage a large backlink portfolio, manually checking each domain is a waste of time. 

Bulk spam score tools let you audit dozens or hundreds of sites in minutes. These tools not only save hours but also help you spot risky domains before they hurt your SEO.

In 2025, the top tools stand out for speed, accuracy, and actionable insights. They combine spam score checks, domain authority metrics, and backlink analysis into a single workflow. 

Some even let you export data or integrate with APIs, making them perfect for agencies scaling link-building campaigns. 

We’ll cover the features, pricing, and unique advantages so you can pick the right tool that suits your needs.

1. Moz Domain Analysis Tool

If you have spent any time in SEO, you know Moz. Their Domain Analysis Tool is still one of the most reliable ways to bulk-check spam scores.

Here is what you get:

• Spam Score is powered by Moz’s 27 spam flags, such as thin content, weak backlink profiles, and over-optimized anchor text.
• Domain Authority (DA) is used to measure the overall strength of a site.
• Linking domains and top pages to see where a domain actually gets its credibility.
• Keyword metrics that show if a site ranks for anything meaningful.

The tool is popular with SEOs because it is simple to use. You paste your list of domains, run the check, and export the results into clean reports.

The only drawback is that free users face strict limits. Agencies or professionals who need bulk checks will usually need a paid plan to unlock higher usage.

Bottom line: Moz delivers accurate spam score data along with DA and keyword insights in a single dashboard. It is a go-to choice for agencies that want quick and dependable checks.

2. Website SEO Checker

If you want speed and simplicity, Website SEO Checker is a solid pick.

The tool gives you a quick read on a domain’s DA, PA, and Spam Score. You also get a snapshot of its backlink profile, which makes it easy to spot red flags before you waste time on outreach.

Where it shines is in bulk mode. Drop in a list of domains. Hit check. In seconds, you get a full report that can be exported to CSV. Agencies love this because it cuts hours off manual audits.

It is free for small checks, but serious bulk users will need credits or a paid plan. The good news? The pricing is much lighter than enterprise tools, so even small SEO shops can afford it.

Think of it as a fast filter. It won’t give you the depth of Moz or Ahrefs, but when you need to sift through hundreds of sites in minutes, it does the job beautifully.

According to a 2024 Ahrefs study, over 42 percent of SEOs run bulk domain checks weekly to filter toxic sites. That makes Website SEO Checker a handy option for anyone who needs scale without burning through expensive credits.

3. DAPA Checker

DA PA Checker delivers exactly what its name promises—speedy checks of DA, PA, and Spam Score for multiple domains, without any distractions.

Its real edge lies in bulk performance. Drop in a list of domains and watch DAPA spit back authority and risk signals in seconds. No fluff, just clean data that lets you vet link targets fast.

It doesn’t offer backlink deep-dives like Ahrefs or Moz, and that’s the point. It stays lightweight and laser-focused on the core metrics SEOs need. That makes it a go-to tool for high-volume outreach where every second counts.

Price-wise, it’s a win too. Because it avoids unnecessary extras, the cost stays lower than full-suite platforms.

In fact, a BrightLocal survey found that 89% of local SEO experts say link building is still the most effective way to improve rankings. That makes a sharp bulk-checking tool like DAPA Checker perfect for scaling link work efficiently.

4. LetMePost DA PA Checker

If you are running outreach campaigns or backlink audits at scale, speed matters as much as accuracy. That’s where LetMePost DA PA Checker really shines.

At its core, the tool lets you check Domain Authority (DA), Page Authority (PA), and Spam Score for multiple sites in one go. 

But what sets it apart from many bulk checkers is the export functionality. Instead of copying results manually, you can download your entire report as a CSV and drop it straight into your workflow like Google Sheets for client reporting or an internal CRM for prospect tracking.

Another plus is accessibility. Unlike some premium platforms that hide bulk features behind steep paywalls, LetMePost offers a free tier that works well for smaller batches.

Agencies or freelance SEOs who manage multiple clients can easily scale up with the paid plans, which are still more budget-friendly than larger enterprise tools.

In practice, LetMePost works best when paired with a content-driven outreach strategy. 

For example, agencies can scrape a large list of potential partners, run them through LetMePost, export the results, and immediately sort by DA, PA, and Spam Score to create a high-quality target list. 

This workflow removes a lot of the guesswork and helps you focus only on domains that can actually help your website rank.

5. DAPA Checker Pro

If you are running SEO at an agency level, bulk checks are not just a nice-to-have,  they are mission critical. DAPA Checker Pro is built with that reality in mind. It takes the simplicity of the original DAPA Checker and layers in advanced features that make it far more suitable for professional use.

The biggest upgrade is the API integration. Instead of manually uploading domains in batches, agencies can plug DAPA Checker Pro directly into their internal dashboards, CRM, or outreach systems. That means spam score, DA, and PA data flows automatically into your workflow, saving hours of manual work each week.

Another strong point is scale. With DAPA Checker Pro, you can process tens of thousands of domains in one session without hitting frustrating rate limits. 

This makes it ideal for agencies that manage multiple clients or run large prospecting campaigns where accuracy and speed both matter.

Pricing is also positioned for teams. While the free version of DAPA Checker works well for freelancers, Pro offers tiered plans designed for agencies that need higher volume and API access without burning through expensive credits on larger platforms.

According to Search Engine Journal, 67 percent of SEOs say scalability is their biggest challenge when running link campaigns at scale. DAPA Checker Pro directly addresses that pain point by offering automation-ready features and massive bulk capacity in one place.

How to Interpret Spam Score Results

Spam score results are not just random numbers. They’re signals that tell you whether a domain is safe to link with or if it could harm your rankings. Think of them like a traffic light: green means safe, yellow means caution, and red means danger.

Interpreting these scores correctly helps you filter toxic domains, protect client sites, and keep your backlink profile clean.

According to Moz, domains with high spam scores are 5.5 times more likely to be penalized or deindexed, which makes knowing the thresholds absolutely critical.

Low Spam Score (0–30%)

These sites are generally safe and unlikely to trigger penalties. They usually have natural backlink patterns and decent content. However, don’t let the “green zone” trick you. Even a site with a 10 percent spam score can be a poor choice if it’s irrelevant to your niche. For example, a law blog doesn’t benefit from linking to a cooking site, no matter how clean the score looks. Always pair low spam scores with topical relevance.

Visual Indicator: ✅ Green Zone — Safe to use with relevance checks.

Medium Spam Score (31–60%)

This is the gray area. Sites in this range aren’t outright toxic, but they raise flags. They might have too many exact-match anchors, thin content, or an unusual outbound link pattern. If you’re considering them for outreach, run a manual review first. And if you find them in your backlink profile, don’t rush to disavow. Check whether the links look natural before taking action.

Visual Indicator: ⚠️ Yellow Zone — Needs manual inspection.

High Spam Score (61%+)

This is the danger zone. Sites with spam scores above 60 percent often belong to link farms, low-quality directories, or private blog networks. Associating with them puts your rankings at risk. If you discover them in your backlink profile, disavow them quickly to prevent penalties. And if you’re prospecting, avoid them entirely.

Visual Indicator: 🚫 Red Zone — High penalty risk, stay away.

Features of a Spam Checker Tool

A great spam checker tool isn’t just a number machine. 

It’s your defense system against risky backlinks and wasted outreach. It helps you move faster, smarter, and safer.

Start with bulk speed. The best tools let you run lists of domains in one go—no manual copy-paste, no endless clicking. That means faster audits and cleaner client reports.

Next-level scoring. It’s not enough to get a spam score—you need context. Top tools layer in DA, PA, linking domains, anchor text trends, and even technical flags like thin content or hidden text. You see why a site is risky, not just that it is.

Export vibes. CSV downloads and API access mean you can feed data directly into your SEO workflows or client dashboards. That extra flexibility saves hours every week.

Built-in relevance filters. Some tools let you cross-check fields such as keyword rankings or topical match alongside spam scores. That adds clarity: a clean site in the wrong niche = still useless for your campaign.

Here’s the kicker: AI-driven backlink audits are 2.8× faster, according to SEO Sandwich. So your triage process is rapidly becoming a slam dunk.

If you’re serious about quality, you want these features working in concert: bulk checks, smart scoring, seamless exports, and relevance overlays—all on a clean, efficient dashboard.

How to Reduce a High Spam Score

A high spam score is like carrying extra baggage on a flight; it slows you down and increases the risk of getting flagged. 

If too many toxic backlinks point to your domain, search engines may treat your site as untrustworthy. Luckily, reducing spam score is not rocket science. 

It just takes a structured cleanup plan.

Step 1: Run a full backlink audit

Begin by scanning your backlink profile with tools like Moz, Ahrefs, or SEMrush. 

A single audit can reveal hundreds of hidden toxic links. Look for patterns such as irrelevant anchor text, exact-match spammy keywords, or links from sites with thin content. 

Treat this audit as a health check-up for your website.

Step 2: Identify toxic domains

Not every link with a spam score is bad, but certain signals should raise alarms. Domains with no organic traffic, sites that exist only for link selling, or obvious PBN footprints are all high-risk. 

According to Google’s Webspam Report 2024, over 40 percent of manual penalties are related to link spam (Google Report). If you find links from such domains, put them on your removal or disavow list.

Step 3: Disavow harmful links

Once you have your list, prepare a disavow file and upload it via Google Search Console. This step tells Google to stop counting those links against you. 

While it does not delete the links themselves, it’s like asking search engines to put noise-cancelling headphones on; they ignore the bad signals.

Step 4: Replace with quality backlinks

Removing spammy links alone won’t improve your rankings. You need to replace them with strong, contextual backlinks from trusted websites. 

Focus on building links from high-authority domains in your niche. 

Ahrefs found that sites with a balanced backlink profile (mix of branded, contextual, and authority links) perform 45 percent better in organic visibility than those with spam-heavy links.

Step 5: Keep monitoring

Spam score is not a one-time fix. Competitors can build toxic links to your site, or new low-quality domains may link to you over time. 

Run monthly spam checks and set up alerts for sudden spikes. This ongoing monitoring ensures your profile stays clean and trustworthy.

👉 Want to skip the manual cleanup? Get a free spam score analysis from T-Ranks and let our team show you exactly which links are putting your site at risk.

How to Understand and Use DA

Domain Authority (DA) is one of the most talked-about metrics in SEO. Developed by Moz, DA is a score between 1 and 100 that predicts how likely a website is to rank in search results. The higher the DA, the stronger the domain’s overall authority in the eyes of search engines.

But here’s the catch: Google has repeatedly said it does not use DA as a direct ranking factor. Instead, DA is a third-party metric that correlates strongly with rankings because it’s based on signals like backlinks, linking root domains, and overall link profile health. In fact, a Moz study found that domains with DA 60+ receive 4.4x more organic traffic on average compared to those below DA 30 (Moz Study).

So how should you actually use DA?

1. Competitor Analysis

DA is extremely useful when benchmarking against competitors. If your DA is 25 and your competitor’s site is 55, it signals that you need to strengthen your backlink profile before expecting to outrank them consistently.

2. Link Prospecting

 When running outreach or guest posting campaigns, DA helps you filter out low-quality domains. For example, a DA 10 blog with no traffic might not move the needle, but landing a backlink from a DA 70 site can drive both authority and referral traffic.

3. Measuring Progress

DA changes slowly, but steady growth is a good sign that your SEO strategy is working. Agencies often use DA as a KPI to show clients the long-term value of link building.

4. Pairing DA with Other Metrics

Never use DA in isolation. Combine it with metrics like traffic, relevance, and spam score. For example, a DA 60 domain with a spam score of 70 percent is more harmful than helpful. On the other hand, a DA 40 niche-relevant site with good engagement metrics could be gold.

In short, DA is not the holy grail of SEO, but when used wisely alongside other signals, it’s a powerful compass for navigating link building and competitive research.

Tips to Improve Domain Authority

Improving DA takes time, but it becomes easier when you break it down into focused areas. Instead of random tactics, think in terms of content, backlinks, and technical SEO.

Content

• Publish in-depth, useful resources that people want to reference
• Keep content fresh with regular updates
• Target long-tail keywords for easier wins
• Add original data, stats, or case studies to stand out

Backlinks

• Focus on white-hat link building strategies
• Earn mentions through guest posts and PR outreach
• Build links from niche-relevant sites, not just high DA ones
• Replace broken links with your content through outreach

Technical SEO

• Improve site speed for better crawlability and rankings
• Ensure your site is mobile-friendly
• Fix broken internal links and redirects
• Strengthen site architecture with clear navigation

Engagement & Trust

• Boost click-through rates with better titles and meta descriptions
• Reduce bounce rates by improving content readability
• Encourage social shares to amplify reach
• Build a strong brand presence to attract natural links

Start your backlink audit with T-Ranks today. Contact us to uncover opportunities to boost your rankings.