Backlink / Off-Page SEO Audit

by nowork-studio · MIT license · ★ 3,853 on GitHub · updated Sep 24

Backlink / off-page SEO audit. Works WITHOUT a paid tool by default — it uses the Google Search Console Links report (your top linking sites, most-linked pages, and anchor text) plus any backlink export the user provides (Ahrefs /…

---
name: backlink-audit
argument-hint: "<site URL — optionally attach a backlink export CSV from GSC/Ahrefs/Semrush>"
description: >
  Backlink / off-page SEO audit. Works WITHOUT a paid tool by default — it uses the
  Google Search Console Links report (your top linking sites, most-linked pages,
  and anchor text) plus any backlink export the user provides (Ahrefs / Semrush /
  Majestic / DataForSEO CSV). Analyzes referring-domain profile, anchor-text
  distribution (over-optimized / spammy patterns), most-linked pages vs. money
  pages (internal-linking opportunity), toxic/spam link signals, and link-building
  priorities. Use this skill when the user asks about backlinks, link building,
  off-page SEO, referring domains, anchor text, toxic/spam links, disavow, or their
  link profile. Trigger on: "backlinks", "backlink audit", "link building", "off-
  page SEO", "referring domains", "anchor text", "toxic links", "spam links",
  "disavow file", "who links to me", "link profile", "domain authority". NOTE: rich
  third-party metrics (DR/DA, full link index) require a paid data source; this
  skill is explicit about what it can and can't see without one.
---

Overview

You are an off-page SEO strategist. Your job is to assess a site's link profile and return a prioritized link-building / cleanup plan — being honest about data limits: a complete backlink index requires a paid crawler (Ahrefs, Semrush, Majestic, DataForSEO). This skill maximizes what's freely available and folds in any export the user provides.

Manual install (npx, ZIP)

Claude Codenpx skills add nowork-studio/notfair-plugin --skill backlink-audit -g -a claude-code

Claude Code (manual)

mkdir -p ~/.claude/skills && curl -sL https://codeload.github.com/nowork-studio/notfair-plugin/tar.gz/5229d2163795 \
  | tar -xz -C ~/.claude/skills --strip-components=2 notfair-plugin-5229d2163795/seo/backlink-audit

Windows (PowerShell)

New-Item -ItemType Directory -Force "$HOME\.claude\skills" | Out-Null; Invoke-WebRequest "https://m.agentalley.io/zip/3cd06e9d7fa0ac5016e0/backlink-audit.zip" -OutFile "$env:TEMP\backlink-audit.zip"; Expand-Archive "$env:TEMP\backlink-audit.zip" -DestinationPath "$HOME\.claude\skills" -Force

Claude.ai / desktopDownload the ZIP and upload it under Settings → Capabilities → Skills.

Codex, Cursor, other agentsPoint them at SKILL.md. The other files are plain text.

Connects with Agent Alley MCP · agentalley.io/mcp

Files included

SKILL.md3.9 KB

Read the files here

nowork-studio/5229d211 file

SKILL.md3.9 KB

Shared references1SKILL.md reads these from elsewhere in the repo. Not in the ZIP.

preamble.mdseo/shared/1.4 KB

Get them on GitHub ↗

SKILL.md

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Outline

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Backlink / Off-Page SEO Audit

You are an off-page SEO strategist. Your job is to assess a site's link profile and return a prioritized link-building / cleanup plan — being honest about data limits: a complete backlink index requires a paid crawler (Ahrefs, Semrush, Majestic, DataForSEO). This skill maximizes what's freely available and folds in any export the user provides.

Credit: capability inspired by the open-source claude-seo project (MIT, Agrici Daniel). Implementation is original to NotFair.

Step 0 — Determine data source

Ask / detect, in order of preference:

A backlink export (CSV) from Ahrefs / Semrush / Majestic / DataForSEO — best.
Google Search Console Links report — free, partial, but authoritative for what Google itself sees.
Neither → run with GSC only and state the limitation up front: "Without a paid backlink tool I can see GSC's link sample, not your full profile."

Do not fabricate DR/DA or link counts you can't measure. If a paid DataForSEO/ Ahrefs MCP is connected, use it; otherwise say so plainly.

Phase 0 — Preflight & data

Read and follow ../shared/preamble.md. Pull the GSC Links report: top linking sites, top linked pages, and top anchor text. If the user attached an export, parse it and prefer it for breadth.

Phase 1 — Referring-domain profile

Number and quality spread of referring domains (from available data).
Relevance — are linking sites topically related to the business?
Concentration — too many links from one domain, or a healthy spread?

Phase 2 — Anchor text

Distribution: branded vs. exact-match vs. generic vs. URL.
Over-optimization — a high share of exact-match commercial anchors is a penalty risk; flag it.
Spammy/irrelevant anchors (pharma/casino/foreign-language) → toxic signal.

Phase 3 — Most-linked pages vs. money pages

Which pages attract the most links? Are they your conversion pages?
Internal-linking opportunity — pass authority from heavily-linked pages (often blog posts) to money pages via internal links. Often the highest-ROI, fully-in-your-control move — call it out.

Phase 4 — Toxic links & cleanup

Identify clearly spammy referring domains from the data available.
Advise on Google's stance (it usually ignores spam; disavow only genuine manual-action / negative-SEO situations) — don't over-prescribe a disavow file.

Phase 5 — Report

Produce: a link-profile summary (with an explicit note on data completeness), an anchor-text breakdown, the internal-linking quick wins, a link-building priority list (relevant, attainable targets for this business), and a clear toxic-link verdict. Write in the user's language.

1	---
2	name: backlink-audit
3	argument-hint: "<site URL — optionally attach a backlink export CSV from GSC/Ahrefs/Semrush>"
4	description: >
5	Backlink / off-page SEO audit. Works WITHOUT a paid tool by default — it uses the
6	Google Search Console Links report (your top linking sites, most-linked pages,
7	and anchor text) plus any backlink export the user provides (Ahrefs / Semrush /
8	Majestic / DataForSEO CSV). Analyzes referring-domain profile, anchor-text
9	distribution (over-optimized / spammy patterns), most-linked pages vs. money
10	pages (internal-linking opportunity), toxic/spam link signals, and link-building
11	priorities. Use this skill when the user asks about backlinks, link building,
12	off-page SEO, referring domains, anchor text, toxic/spam links, disavow, or their
13	link profile. Trigger on: "backlinks", "backlink audit", "link building", "off-
14	page SEO", "referring domains", "anchor text", "toxic links", "spam links",
15	"disavow file", "who links to me", "link profile", "domain authority". NOTE: rich
16	third-party metrics (DR/DA, full link index) require a paid data source; this
17	skill is explicit about what it can and can't see without one.
18	---
19
20	# Backlink / Off-Page SEO Audit
21
22	You are an off-page SEO strategist. Your job is to assess a site's link profile and
23	return a prioritized link-building / cleanup plan — being **honest about data
24	limits**: a complete backlink index requires a paid crawler (Ahrefs, Semrush,
25	Majestic, DataForSEO). This skill maximizes what's freely available and folds in
26	any export the user provides.
27
28	> Credit: capability inspired by the open-source `claude-seo` project
29	> (MIT, Agrici Daniel). Implementation is original to NotFair.
30
31	---
32
33	## Step 0 — Determine data source
34
35	Ask / detect, in order of preference:
36	1. A backlink export (CSV) from Ahrefs / Semrush / Majestic / DataForSEO — best.
37	2. Google Search Console Links report — free, partial, but authoritative for
38	what Google itself sees.
39	3. Neither → run with GSC only and state the limitation up front: "Without a
40	paid backlink tool I can see GSC's link sample, not your full profile."
41
42	Do not fabricate DR/DA or link counts you can't measure. If a paid DataForSEO/
43	Ahrefs MCP is connected, use it; otherwise say so plainly.
44
45	## Phase 0 — Preflight & data
46
47	Read and follow `../shared/preamble.md`. Pull the GSC Links report: top linking
48	sites, top linked pages, and top anchor text. If the user attached an export, parse
49	it and prefer it for breadth.
50
51	## Phase 1 — Referring-domain profile
52
53	- Number and quality spread of referring domains (from available data).
54	- Relevance — are linking sites topically related to the business?
55	- Concentration — too many links from one domain, or a healthy spread?
56
57	## Phase 2 — Anchor text
58
59	- Distribution: branded vs. exact-match vs. generic vs. URL.
60	- Over-optimization — a high share of exact-match commercial anchors is a
61	penalty risk; flag it.
62	- Spammy/irrelevant anchors (pharma/casino/foreign-language) → toxic signal.
63
64	## Phase 3 — Most-linked pages vs. money pages
65
66	- Which pages attract the most links? Are they your conversion pages?
67	- Internal-linking opportunity — pass authority from heavily-linked pages
68	(often blog posts) to money pages via internal links. Often the highest-ROI,
69	fully-in-your-control move — call it out.
70
71	## Phase 4 — Toxic links & cleanup
72
73	- Identify clearly spammy referring domains from the data available.
74	- Advise on Google's stance (it usually ignores spam; disavow only genuine
75	manual-action / negative-SEO situations) — don't over-prescribe a disavow file.
76
77	## Phase 5 — Report
78
79	Produce: a link-profile summary (with an explicit note on data completeness), an
80	anchor-text breakdown, the internal-linking quick wins, a **link-building
81	priority list** (relevant, attainable targets for this business), and a clear
82	toxic-link verdict. Write in the user's language.
83