Commands
| Command | What it does |
|---|
/seo backlinks <url> | Full backlink profile audit using all available sources |
/seo backlinks gap <url1> <url2> | Competitor gap analysis: links they have, you do not |
/seo backlinks toxic <url> | Toxic-pattern findings and disavow recommendations for manual review |
/seo backlinks new <url> | New and lost backlinks (requires DataForSEO) |
/seo backlinks verify <url> --links <file> | Verify that backlinks in a supplied list still exist on their linking pages |
/seo backlinks setup | Walks through free Moz and Bing Webmaster setup |
Data Source Tiers
| Source | Cost | What it adds |
|---|
| Common Crawl | Free, always on | Domain-level graph: in-degree, PageRank, harmonic centrality |
| Verify crawler | Free, always on | Validates known backlinks still exist |
| Moz API | Free access: 50 rows/month, 1 request/10s | Domain Authority, Page Authority, Spam Score, anchor data. Allowance verified August 27, 2026. |
| Bing Webmaster | Free signup, your own sites | Inbound link details, anchor extraction, link source |
| DataForSEO (extension) | Paid, pay-per-use | Live referring domains, new/lost links, anchor distribution, competitor data |
Health Score Weighting
The backlink health score uses seven factors and applies source-confidence weighting:
- Referring domain count: 20%
- Domain quality distribution: 20%
- Anchor text naturalness: 15%
- Toxic link ratio: 20%
- Link velocity trend: 10%
- Follow-to-nofollow ratio: 5%
- Geographic relevance: 10%
A numeric score is produced only when at least 4 of the 7 factors have data. Missing weights are redistributed proportionally. With fewer than 4 factors, the report says INSUFFICIENT DATA and shows only the available factor results, sources, and confidence levels.
How should you review toxic-link findings?
A toxic-link flag is a prompt for manual review, not proof that a domain should be disavowed. Start by confirming that the linking page exists, that the link points to the expected destination, and that the pattern is not a legitimate editorial mention. Compare the source across available indexes because backlink databases differ in coverage and freshness. Google's spam policies define link spam and the behaviors its systems evaluate. Google's separate disavow links guidance says the tool is advanced and should be used with caution. Claude SEO returns review recommendations and never uploads anything. The current skill does not create a disavow file. Keep links that are relevant or naturally earned, investigate uncertain domains, and reserve removal or disavow actions for links you have verified as manipulative or connected to a manual action. Record the evidence behind every final decision.
