Check Any Website's
Spam Score Instantly
Enter a domain (or a list) and get the Moz Spam Score (0–17) with a detailed breakdown of which flags are triggered. Essential for PBN domain auditing and link profile cleanup.
How Moz Spam Score Works
The Moz Spam Score is not a direct measure of a site's quality, but rather a statistical indicator. It represents the percentage of sites with similar features (out of 27 possible flags) that were found to be penalized or banned by Google in Moz's analysis.
A score of 0%–4% is considered low risk, 5%–8% medium, and 9%–17% high. However, many legitimate sites trigger a few flags without being spam. Always interpret the score in context, not as a standalone verdict.
When Spam Score Matters for PBNs
When sourcing expired domains for a Private Blog Network, Spam Score is a vital filter. A domain with a high spam score (9+) may have a history of manipulative link building, thin content, or other penalized patterns – making it risky for your network.
However, don't disqualify a domain solely on Spam Score. Manually check the backlink profile (Ahrefs/Majestic), Wayback history, and anchor text distribution. Some flags (like "Low number of pages") are easy to fix after acquisition.
Common Spam Flags Explained
Moz tracks up to 27 different flags. Here are a few that often trigger for PBN-eligible domains:
📄 Low Number of Pages
Domains with very few indexed pages (often 1‑10) tend to have higher spam correlation. Rebuilding the site with rich content reduces this flag.
📧 No Contact Info
Missing email, phone, or address signals a lack of transparency. Adding a contact page helps.
🔗 External Link Ratio
A high ratio of external links to content can indicate a link farm. Ensure your outbound links are relevant and not excessive.
🌍 Small Domain
Very short domain names or those with few backlinks may be flagged. Build natural backlinks over time.
How to Reduce a High Spam Score
If your own site or a domain you plan to use has a high spam score, take these steps:
- Add more content pages – at least 10‑15 well‑written articles.
- Create essential pages (About, Contact, Privacy Policy).
- Reduce external link density – remove excessive outbound links.
- Build natural, diverse backlinks – avoid exact‑match anchor overuse.
- Register the domain for multiple years – shows commitment.
After making changes, re‑check the spam score. Note that Moz updates its index periodically, so results may not reflect immediately.
* Spam Score data is simulated for demonstration. A live version would connect to the Moz API for real‑time scores and flag details.