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Spam Score
Analyzer
Check your website's spam score instantly with Moz. Detect spam signals, analyze domain quality, and protect your SEO reputation.
Protect Your SEO Reputation
Detect spam signals before they hurt your rankings
Low Risk (0-30%)
Healthy domain with clean backlink profile. No significant spam signals detected. Safe for link building.
Medium Risk (31-60%)
Some spam signals detected. Review backlink profile and consider disavowing low-quality links.
High Risk (61-100%)
Significant spam signals. Immediate action required. Audit backlinks and submit disavow file to Google.
Why Monitor Spam Score?
Protect your site from Google penalties
Prevent Google Penalties
High spam scores indicate toxic backlinks that could trigger manual actions or algorithmic penalties from Google.
- Identify risky link sources
- Clean up toxic backlinks
- Maintain clean link profile
Vet Link Partners
Check potential link sources before pursuing guest posts or partnerships. Avoid associations with spammy sites.
- Evaluate guest post sites
- Screen link partners
- Protect your backlink profile
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Frequently Asked Questions
What is spam score and how is it calculated?+
Spam score is Moz's metric (0-100%) measuring how many spam-like flags a website exhibits. It's calculated using machine learning trained on penalized and banned websites. Flags include low domain diversity, thin content, high ad-to-content ratio, suspicious anchor text patterns, and poor site structure. Higher scores indicate higher spam risk.
What's considered a high vs low spam score?+
Scores 0-30% are low risk (healthy sites), 31-60% are medium risk (review backlink profile and fix issues), and 61-100% are high risk (likely spam or penalty risk). Even good sites can have 1-10% scores. Focus on trends: increasing spam scores indicate problems, while decreasing scores show improvement from cleanup efforts.
Can a high spam score cause Google penalties?+
Spam score itself doesn't cause penalties (it's a Moz metric, not Google's). However, high spam scores correlate with characteristics Google penalizes: toxic backlinks, thin content, manipulative SEO tactics. If your spam score is high, you likely have issues that could trigger manual actions or algorithmic penalties.
How do I reduce my spam score?+
Audit your backlink profile using tools like Moz Link Explorer, identify and disavow toxic links (PBNs, link farms, irrelevant directories), remove low-quality or spammy outbound links, improve content quality and depth, fix technical SEO issues, diversify your link profile with quality sources, and regularly monitor for negative SEO attacks.
Should I check competitor spam scores?+
Yes! Checking competitor spam scores helps you: identify if competitors are using risky tactics, understand if high rankings come from genuine authority or spam, spot negative SEO campaigns affecting your niche, and benchmark your site's health. Sites with low spam scores that rank well are ideal competitors to study and emulate.
How often should I monitor spam score?+
Check monthly for established sites to catch gradual increases. Check weekly during active link building campaigns to ensure quality. Check immediately after: receiving manual action notifications, noticing sudden ranking drops, finishing link cleanup efforts, or suspecting negative SEO attacks. Regular monitoring helps catch problems before they cause serious damage.