seo-backlinks

Original：🇺🇸 English

Translated

Backlink profile analysis: referring domains, anchor text distribution, toxic link detection, competitor gap analysis. Requires DataForSEO extension. Use when user says "backlinks", "link profile", "referring domains", "anchor text", "toxic links", "link gap", "link building", "disavow", or "backlink audit".

3installs

Sourceagricidaniel/claude-seo

Added on2026-03-31

NPX Install

npx skill4agent add agricidaniel/claude-seo seo-backlinks

SKILL.md Content

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Backlink Profile Analysis

This skill requires the DataForSEO extension:

bash

./extensions/dataforseo/install.sh

Check availability: Before using backlink tools, verify the DataForSEO MCP server is connected by checking if

dataforseo_backlinks_summary

or similar tools are available. If unavailable, inform the user and provide install instructions.

Quick Reference

Command	Purpose
`/seo backlinks <url>`	Full backlink profile analysis
`/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 (recent changes)

Analysis Framework

When analyzing a backlink profile, produce all 7 sections below.

1. Profile Overview

Use

dataforseo_backlinks_summary

to get:

Total backlinks and referring domains
Domain rank / authority score
Follow vs nofollow ratio
Historical trend (growing, stable, or declining)

Scoring:

Metric	Good	Warning	Critical
Referring domains	>100	20-100	<20
Follow ratio	>60%	40-60%	<40%
Domain diversity	No single domain >5%	1 domain >10%	1 domain >25%
Trend	Growing or stable	Slow decline	Rapid decline (>20%/quarter)

2. Anchor Text Distribution

Use

dataforseo_backlinks_anchors

to analyze anchor text patterns.

Healthy distribution benchmarks:

Anchor Type	Target Range	Over-Optimization Signal
Branded (company/domain name)	30-50%	<15%
URL/naked link	15-25%	N/A
Generic ("click here", "learn more")	10-20%	N/A
Exact match keyword	3-10%	>15%
Partial match keyword	5-15%	>25%
Long-tail / natural	5-15%	N/A

Flag if exact-match anchors exceed 15% -- this is a Google Penguin risk signal.

3. Referring Domain Quality

Use

dataforseo_backlinks_referring_domains

to assess link quality.

Analyze:

TLD distribution: .edu, .gov, .org = high authority. Excessive .xyz, .info = low quality
Country distribution: Match target market. 80%+ from irrelevant countries = PBN signal
Language distribution: Should match site language. Foreign-language links can be spam
Domain rank distribution: Healthy profiles have links from all authority tiers
Follow/nofollow per domain: Sites that only nofollow = limited SEO value

4. Toxic Link Detection

Identify potentially harmful backlinks using these patterns:

High-risk indicators (flag immediately):

Links from known PBN (Private Blog Network) domains
Unnatural anchor text patterns (100% exact match from a domain)
Links from penalized or deindexed domains
Mass directory submissions (50+ directory links)
Comment spam links (forum/blog comment backlinks at scale)
Link farms (sites with 10K+ outbound links per page)
Foreign-language links to English sites (unless intentional)
Paid link patterns (footer/sidebar links across all pages of a domain)

Medium-risk indicators (review manually):

Links from unrelated niches
Reciprocal link patterns (A links to B, B links to A)
Links from thin content pages (<100 words)
Excessive links from a single domain (>50 backlinks from 1 domain)

Output:

Toxic Link Report
=================
Total backlinks analyzed: X
Potentially toxic: Y (Z%)

High Risk (recommend disavow):
  [list with domain, reason, anchor text]

Medium Risk (review manually):
  [list with domain, reason, anchor text]

5. Top Pages by Backlinks

Use

dataforseo_backlinks_backlinks

with target type "page" to find:

Which pages attract the most backlinks
Pages with high-authority links (link magnets)
Pages with zero backlinks (internal linking opportunities)
404 pages with backlinks (redirect opportunities to reclaim link equity)

6. Competitor Gap Analysis

For

/seo backlinks gap <url1> <url2>

:

Use

dataforseo_backlinks_referring_domains

for both domains and compare:

Domains linking to competitor but NOT to target = link building opportunities
Domains linking to both = validate existing relationships
Domains linking only to target = competitive advantage

Output:

Competitor Gap: example.com vs competitor.com
=============================================
Competitor has links from X domains you don't
You have links from Y domains competitor doesn't

Top 20 Link Building Opportunities:
  [domain, authority, anchor used for competitor, contact suggestion]

7. New and Lost Backlinks

Use

dataforseo_backlinks_backlinks

with date filters to track:

New backlinks in last 30/60/90 days
Lost backlinks in last 30/60/90 days
Link velocity (new per month trend)

Red flags:

Sudden spike in new links (possible negative SEO attack)
Sudden loss of many links (site penalty or content removal)
Declining velocity over 3+ months (content not attracting links)

Backlink Health Score

Calculate a 0-100 score based on:

Factor	Weight	Scoring
Referring domain count	20%	Scale based on industry benchmarks
Domain quality distribution	20%	% from authority domains (DR 40+)
Anchor text naturalness	15%	Penalty for over-optimization
Toxic link ratio	20%	<2% = full score, >10% = 0
Link velocity trend	10%	Growing = full, declining = partial
Follow/nofollow ratio	5%	>60% follow = full score
Geographic relevance	10%	% from target market countries

Output Format

Backlink Health Score: XX/100

Section	Status	Score
Profile Overview	pass/warn/fail	XX/100
Anchor Distribution	pass/warn/fail	XX/100
Referring Domain Quality	pass/warn/fail	XX/100
Toxic Links	pass/warn/fail	XX/100
Top Pages	info	N/A
Link Velocity	pass/warn/fail	XX/100

Critical Issues (fix immediately)

High Priority (fix within 1 month)

Medium Priority (ongoing improvement)

Link Building Opportunities (top 10)

Error Handling

Error	Cause	Resolution
DataForSEO tools unavailable	Extension not installed	Run `./extensions/dataforseo/install.sh`
No backlink data returned	Domain too new or very small	Note: small sites may have <10 backlinks
API credits insufficient	DataForSEO balance low	Check balance at app.dataforseo.com

Graceful fallback: If DataForSEO is unavailable:

Inform user that backlink analysis requires the DataForSEO extension
Offer to check robots.txt and sitemap for basic link signals instead
Suggest manual tools: Ahrefs Webmaster Tools (free), Google Search Console Links report

Reference Documentation

Load on demand (do NOT load at startup):

```
references/backlink-quality.md
```
-- Detailed toxic link patterns and scoring methodology