PulseRankPro
Get Started
Moz 27-Flag Detection Engine→

Bulk Moz Spam Score Checker

Identify penalized domains, audit expired domain backlink health, and measure toxic link risk across hundreds of websites simultaneously.

Explore Bulk DA CheckerView API Documentation
Official Licensed APIsNever Scraped or InferredHigh-Speed Concurrency Pool
PulseRank/Bulk Inspector v2.4
Enter Domains to Inspect5 Domains
Full 27-signal audit

Spam Score Risk Breakdown

5 Domains Analyzed
Domain NameSpam Score %Moz DAFlags TriggeredRisk LevelSEO Action
wikipedia.org1%980 / 27Low RiskSafe to build links
techcrunch.com2%930 / 27Low RiskSafe to build links
free-crypto-giveaway-daily.xyz68%1216 / 27High RiskAvoid / Disavow backlink
medium.com4%951 / 27Low RiskSafe to build links
cheap-loans-fast-online.biz42%248 / 27Medium RiskManual audit suggested
27 Risk Signals
Spam Detection
100% Moz Standard
Threshold Parity
Up to 500 Domains
Batch Scale
Excel, CSV, Disavow
Export Formats

Understanding Moz Spam Score: Protecting Your Site From Algorithmic Penalties

Google's SpamBrain and manual action teams penalize domains with artificial link velocity, thin content syndication, and footprint manipulation. Moz Spam Score provides an early warning radar by correlating your target domains against 27 known characteristics of penalized websites.

1-30%

Low Risk Tier

Standard healthy domains. Natural backlink distributions, balanced anchor text, and clean historical registration footprints. Safe for link building.

31-60%

Medium Risk Tier

Caution advised. May contain repetitive C-class IP links, excessive external outlinks, or automated guest post networks. Perform manual review.

61-100%

High Risk Tier

Severe toxic footprint. Multiple spam flags triggered, thin spun text, or direct algorithmic penalties. Recommend disavowing immediately.

Frequently Asked Questions

Everything you need to know about metrics calculation, credits, and accuracy.

What is Moz's Spam Score and how is it calculated?▼

Moz's Spam Score represents the percentage of sites with similar backlink and on-page features that were found to be penalized or banned by Google. It operates on 27 distinct correlation flags identified through massive link graph machine learning.

What Spam Score is considered dangerous for SEO?▼

Scores between 1% and 30% are considered Low Risk. Scores between 31% and 60% are Medium Risk. Scores of 61% to 100% represent High Risk, and acquiring links from or building on these domains is strongly discouraged.

Does having a 1% to 5% Spam Score hurt my website?▼

No. A low Spam Score between 1% and 10% is completely normal across the web. Even high-authority publications like Forbes and The New York Times have small non-zero Spam Scores due to natural web scraper links.

Can I export toxic domains directly to a Google Disavow file?▼

Yes! You can filter results to domains exceeding 30% or 60% Spam Score and export them directly formatted for Google Search Console disavow uploads.

SEO Intelligence Suite

Explore Related SEO Tools

Supercharge your domain research, technical auditing, and backlink prospecting with our interconnected suite of real-time webmaster tools.

Hover over cards to inspect
Explore all suite capabilities
Popular
Bulk DA & PA Checker

Moz Domain Authority (DA), Page Authority (PA), and Spam Score analysis.

Ahrefs
Ahrefs DR & UR Checker

High-speed Ahrefs Domain Rating & URL Rating parity queries with ref domains.

Penalty Audit
Moz Spam Score 27-Flag

Detect algorithmic penalty risk, unnatural links, and disavow candidate URLs.

Registration
Domain Age & WHOIS

Query RDAP/WHOIS for domain creation dates, renewal cycles, and expiration.

Networking
IP & DNS Intelligence

Instant lookup for A, AAAA, MX, NS records, server ASN location, and hosting IP.

SERP Index
Google Index Checker

Verify live indexing status directly against Google SERP responses in bulk.

Popular
Bulk DA & PA Checker

Moz Domain Authority (DA), Page Authority (PA), and Spam Score analysis.

Ahrefs
Ahrefs DR & UR Checker

High-speed Ahrefs Domain Rating & URL Rating parity queries with ref domains.

Penalty Audit
Moz Spam Score 27-Flag

Detect algorithmic penalty risk, unnatural links, and disavow candidate URLs.

Registration
Domain Age & WHOIS

Query RDAP/WHOIS for domain creation dates, renewal cycles, and expiration.

Networking
IP & DNS Intelligence

Instant lookup for A, AAAA, MX, NS records, server ASN location, and hosting IP.

SERP Index
Google Index Checker

Verify live indexing status directly against Google SERP responses in bulk.

Builder
Robots.txt Generator

Interactive crawler rule builder with live text preview, directives, and download.

Generator
XML Sitemap Generator

Visual XML sitemap builder with priority, changefreq, and compliant XML export.

Validation
XML Sitemap Validator

Validate sitemap schema, HTTP status codes, protocol match, and dead link detection.

Directory
Guest Post Directory

Browse vetted high-DA publishing sites categorized by niche and editorial guidelines.

Security
SSL & Security Header Audit

Inspect HSTS, TLS certificates, and HTTP response headers in real time.

REST API
API Enterprise Suite

REST endpoints for programmatic batch queries up to 1,000 URLs concurrently.

Builder
Robots.txt Generator

Interactive crawler rule builder with live text preview, directives, and download.

Generator
XML Sitemap Generator

Visual XML sitemap builder with priority, changefreq, and compliant XML export.

Validation
XML Sitemap Validator

Validate sitemap schema, HTTP status codes, protocol match, and dead link detection.

Directory
Guest Post Directory

Browse vetted high-DA publishing sites categorized by niche and editorial guidelines.

Security
SSL & Security Header Audit

Inspect HSTS, TLS certificates, and HTTP response headers in real time.

REST API
API Enterprise Suite

REST endpoints for programmatic batch queries up to 1,000 URLs concurrently.

SEO Knowledge Base

Latest SEO Insights & Strategies

Actionable technical playbooks on authority scaling, toxic link decontamination, and search engine ranking dynamics.

Explore all articles
Authority Engineering
6 min read•Oct 12, 2026

How Moz Domain Authority (DA) is Calculated: Link Graphs, ML & 2026 SERP Correlations

A technical deep dive into Moz's machine learning model, logarithmic distribution curves, and why link relevance consistently outperforms raw volume in modern search rankings.

Read Article
Risk Mitigation
8 min read•Oct 08, 2026

Understanding Moz Spam Score: 27 Toxic Link Signals and How to Disavow Effectively

Learn how the 27 spam flags are triggered, the statistical boundary between low-risk and penalized domains, and our agency protocol for auditing expired domains.

Read Article
Comparative Analysis
5 min read•Oct 02, 2026

Moz DA vs. Ahrefs DR: Key Algorithmic Differences, False Equivalencies & Metric Choice

Comparing the algorithmic divergence between Moz Domain Authority and Ahrefs Domain Rating. Discover which authority score best predicts organic traffic growth.

Read Article
Weekly Search Intelligence

Stay Ahead of Search Algorithm Shifts

Join 24,000+ SEO professionals, agency founders, and link builders. Get our weekly breakdown of Moz algorithm shifts, expired domain drops, and ranking playbooks.

Zero Spam Guarantee•Delivered Every Tuesday•Unsubscribe in One Click