What is seo-audit-free?

A basic SEO health check that uses free Google and open-source tools, such as Search Console, PageSpeed Insights, Lighthouse, and checks of robots.txt and sitemaps. SEO means improving how a website appears in search engines.

Use it for an initial check of your own website, a low-budget audit, or a beginner’s starting point. It does not provide detailed competitor visibility, backlink analysis, historical visibility, or exact keyword positions.

It provides a first assessment without paid services such as Sistrix, DataForSEO, Ahrefs, or Semrush. It helps decide whether a more detailed audit is worth paying for.

seo-audit-free — Skill for Claude Code by maxschottke-spec

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add maxschottke-spec/seo-survival-kit --skill seo-audit-free

Clone the repo

git clone --depth 1 https://github.com/maxschottke-spec/seo-survival-kit

Made for: Claude Code.

Or install seo-rescue, the plugin that ships this one along with the rest of its 18 skills, 6 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/maxschottke-spec/seo-survival-kit/seo-audit-free/github.svg)](https://agentmods.dev/skills/maxschottke-spec/seo-survival-kit/seo-audit-free)

Your own site

<a href="https://agentmods.dev/skills/maxschottke-spec/seo-survival-kit/seo-audit-free"><img src="https://agentmods.dev/badge/skills/maxschottke-spec/seo-survival-kit/seo-audit-free/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/maxschottke-spec/seo-survival-kit/seo-audit-free"><img src="https://agentmods.dev/badge/skills/maxschottke-spec/seo-survival-kit/seo-audit-free.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 140 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,234 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00140	$0.03234
Opus 5	$0.00070	$0.01617
Sonnet 5	$0.00028	$0.00647
Haiku 4.5	$0.00014	$0.00323

Measured 11d ago against content hash a85ed8de8beb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade B, and why

seo-audit-free scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Recursive force deletemediumDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

> **Sicherheits-Hinweis:** Die Beispiele unten schreiben nach `/tmp/`, was auf Shared-Hosts world-writable ist und Symlink-Race-Attacks zulässt. Für Solo-Workstations (typischer Use-Case) ist das unbedenklich. Für Shared

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

allowed-tools: [Read, Bash(curl:*), Bash(node:*), Bash(npx lighthouse:*)]

plugins/seo-rescue/skills/seo-audit-free/SKILL.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Beginner SEO Audit — nur kostenlose Tools

Overview

Ein gewollt minimaler SEO-Check, der ohne kostenpflichtige APIs (Sistrix, DataForSEO, Ahrefs, SEMrush) auskommt. Nutzt nur:

Google Search Console (eigene Property)
Google PageSpeed Insights v5 (öffentlich, 25k Calls/Tag frei)
Lighthouse CLI (lokal, Open Source)
Schema.org Validator (Web-Tool, kostenfrei)
Curl + manuelle Inspektion von robots.txt / sitemap.xml / headers

Zweck: Du willst eine Website grob bewerten ohne Budget. Oder du willst wissen ob ein größeres Audit (Sistrix + DataForSEO) sich überhaupt lohnt.

Wann anwenden

"Wie steht meine Website bei Google?" ohne Budget
Vor dem Kauf von Sistrix/DataForSEO/Ahrefs — erste Einschätzung
Schüler/Studenten/Sidehustle-Founder die keine €100/Monat-Tools wollen
Schneller Check bei Bekannten / Familienmitgliedern
Als Vorstufe vor seo-outreach-report — Daten-Hunger entstand erst durch Erkenntnisse aus dem Free-Check

Nicht anwenden für:

Wettbewerbs-Sichtbarkeit (das geht ohne Sistrix-VI nicht)
Backlink-Profil-Analyse (DataForSEO Backlinks nötig)
Historische Sichtbarkeit (Sistrix-History nötig)
Konkrete Keyword-Ranking-Positionen (DataForSEO Labs)

Workflow (in dieser Reihenfolge)

Schritt 1 — Indexierungs-Check via Google direkt

Frage: ist die Website überhaupt indexiert?

site:example.com

Im Google-Sucheingabe-Feld. Liefert eine grobe Indexgröße. Wenn 0 Treffer → indexing-Problem (robots.txt? noindex?).

Schritt 2 — robots.txt + sitemap.xml manuell prüfen

curl -s https://example.com/robots.txt | head -100
curl -s https://example.com/sitemap.xml | head -50

Pflicht-Checks:

Wird der Hauptbereich nicht blockiert (Disallow: /)?
Ist mindestens eine Sitemap referenziert (Sitemap: im robots.txt)?
Liefert die sitemap.xml gültiges XML mit URLs?

Schritt 3 — HTTP-Headers + Status

curl -sI https://example.com/ | head -25

Pflicht-Checks:

HTTP/2 oder HTTP/3 (nicht HTTP/1.x für Performance)
strict-transport-security (HSTS) für Sicherheit
cache-control Header sinnvoll gesetzt
x-content-type-options: nosniff
Keine 5xx Antworten

Read the full file on GitHub · 241 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

11d ago First seen · 241 lines · 140 tokens per session scan B a85ed8de8beb

Subscribe to this mod's changes

seo-audit-free is a skill published in the GitHub repository maxschottke-spec/seo-survival-kit (9 stars, last pushed 1mo ago), licensed MIT. It adds 140 tokens to every session and 3,234 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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seo-audit-free