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Backlink profile analysis: referring domains, anchor text distribution, toxic link detection, competitor gap analysis. Works with free APIs (Moz, Bing Webmaster, Common Crawl) and DataForSEO extension.
Passed 15 of 18 test cases with the skill, and 6 of 18 without it.
and 10 more in the full report
11 fixed7 passed either way4 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
This benchmark measured an earlier version of the skill.
A newer attempt on gemini-3.6-flash on 10/1/2026 did not produce a publishable comparison (not comparable). The snapshot above is the previously measured run.
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
We just completed a full `/seo backlinks example.com` command output and printed all 7 analysis sections. What standard closing line must follow the completed analysis?
| Checked | Without skill | With skill |
|---|---|---|
| Offers the exact message Generate a professional PDF report? Use /seo google report. | Missed | Passed |
The instructions your model reads when the skill loads.
Before analysis, detect available data sources:
backlinks_summary tool is available"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run backlinks_auth.py --check moz --json"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run backlinks_auth.py --check bing --json"${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run backlinks_auth.py --check keywordseverywhere --jsonRun "${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run backlinks_auth.py --check --json to detect all sources at once.
If no sources are configured beyond the always-available tier:
/seo backlinks setup to add free Moz and Bing API keys for richer data"| Command | Purpose |
|---|---|
/seo backlinks <url> | Full backlink profile analysis (uses all available sources) |
/seo backlinks gap <url1> <url2> | Competitor backlink gap analysis |
/seo backlinks toxic <url> | Toxic link detection and disavow recommendations |
/seo backlinks new <url> | New and lost backlinks (DataForSEO only) |
/seo backlinks verify <url> --links <file> | Verify known backlinks still exist |
/seo backlinks setup | Show setup instructions for free backlink APIs |
Produce all 7 sections below. Each section lists data sources in preference order.
DataForSEO: backlinks_summary → total backlinks, referring domains, domain rank, follow ratio, trend.
Moz API: "${CLAUDE_PLUGIN_ROOT}/scripts/claude-seo" run moz_api.py metrics <url> --json → Domain Authority, Page Authority, Spam Score, linking root domains, external links.
test cases passed, vs 6 / 18 without
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