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SEOnaut — Open-Source SEO Audit Tool

Self-hosted MIT-licensed SEO crawler and auditor: crawls websites, surfaces technical SEO issues, broken links, missing metadata, and duplicate content.

@ai-supply
Installs15k
⟳ upstream main@880b312 · updated 2mo ago
↗ Source repository
← More MarketingMarketing leaderboard →How we grade security →Source ↗
! Grade B · 75/100 · ReviewSecurity assessment
✓No compromise signals12capabilities surfaced1known CVE7of 20 OWASP controls clear
External endpoints declaredExternal endpoints declaredExternal endpoints declaredExternal endpoints declared
scanned 16d ago·osv · gitleaks · opengrep · picklescan + heuristics·full breakdown in the Security tab ↓

SEOnaut — Open-Source SEO Audit Tool

SEOnaut is an open-source, self-hosted SEO audit tool written in Go. It crawls websites and generates comprehensive technical SEO reports — surfacing broken links (4xx/5xx), missing title tags and meta descriptions, duplicate content signals, redirect chains, image alt text issues, canonical tag problems, and structured data validation. A clean dashboard makes findings actionable for marketing and development teams.

Key Features

  • Full website crawl with configurable depth and concurrency
  • Detects: broken links, missing/duplicate titles and meta descriptions, redirect chains, missing alt text, hreflang errors
  • JSON + CSV export for integration with reporting pipelines
  • Docker-based deployment — single-command self-hosted setup
  • Lightweight Go binary — runs on a $5 VPS alongside your app

Quick Start

# Docker deployment
docker run -p 8080:8080 stJudeWasHere/seonaut

# Or build from source
git clone https://github.com/StJudeWasHere/seonaut
cd seonaut && go build ./...
./seonaut --addr :8080

Then open http://localhost:8080, add your website URL, and run the crawler. Results appear in a dashboard with filterable issue categories.

npx ai-supply add seonaut-seo-audit-tool

Curated mirror of the open-source SEOnaut (MIT). Get it from the source.

Rating rank
#1
of 13 in Marketing
Install rank
#10
of 13 in Marketing
Security score
75/100 · B
review
Security rank
#9
of 13 in Marketing
Installs
15k
cat avg 80k
This listing vs category average
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See the Marketing leaderboard →
! Security: Review · 7575/100 · grade Bscanned 16d ago
✓ no compromise signals13 risk-surface · 7/20 OWASP controls flagged

Compromise signals — malicious or tampered code (leaked secrets, backdoors, a dropped executable) — reduce the score, and known dependency CVEs carry a bounded penalty (they warrant review but never QUARANTINE — update the dependency to clear). Other dangerous-by-capability traits are risk surface, expected for some capabilities. Every finding is mapped to its OWASP control below.

What this capability can do · med confidence (static)
⚑ filesystem⚑ secrets
egress → docs.docker.com, medium.com, goreportcard.com, img.shields.io, seonaut.org, www.docker.com, www.contributor-covenant.org, golang.org +7
13 steps⚑ uses secretsactions/checkout@v5actions/setup-go@v6docker/setup-buildx-action@v3docker/login-action@v3docker/metadata-action@v5docker/build-push-action@v6actions/setup-go@v5

Findings mapped to the OWASP Top 10 for LLM Applications (2025) and the OWASP Machine Learning Security Top 10. Expand any flagged control for the exact findings — compromise reduces the score; expected/risk-surface do not, except a known CVE, which carries a small bounded penalty (high/critical → Review).

OWASP Top 10 for LLM Applications
⚠LLM03Supply Chaincritical
Vulnerable/compromised dependencies, models or archives in the artifact.
•Vulnerable dependencies — 73 known vulnerabilities in: golang.org/x/crypto@0.51.0, golang.org/x/net@0.54.0, stdlib@1.25.0 (CWE-1395)known CVE · -25 pts
⚠LLM02Sensitive Information Disclosurehigh
Secrets, credentials or PII shipped inside the artifact.
•Embedded credentials — found: hardcoded credential · StJudeWasHere-seonaut-880b312/internal/services/user_test.go (CWE-798)expected
⚠LLM06Excessive Agencyhigh
Over-broad tool/permission surface or unrestricted egress.
•External endpoints declared — 1 distinct host(s) · StJudeWasHere-seonaut-880b312/.gitignorerisk surface
•External endpoints declared — 3 distinct host(s) · StJudeWasHere-seonaut-880b312/Dockerfilerisk surface
•External endpoints declared — 6 distinct host(s) · StJudeWasHere-seonaut-880b312/README.mdrisk surface
•External endpoints declared — 2 distinct host(s) · StJudeWasHere-seonaut-880b312/configrisk surface
•External endpoints declared — 4 distinct host(s) · StJudeWasHere-seonaut-880b312/internal/crawler/basic_client_test.gorisk surface
•Egress to a private/loopback host — 127.0.0.1 · StJudeWasHere-seonaut-880b312/internal/issues/page/links_test.go (CWE-918)risk surface
•External endpoints declared — 5 distinct host(s) · StJudeWasHere-seonaut-880b312/internal/services/html_parser_test.gorisk surface
•Broad capability surface — 3 high-impact capability categories referenced — verify least-privilege · StJudeWasHere-seonaut-880b312/web/static/echarts.min.js (CWE-272)risk surface
⚠LLM07System Prompt Leakagehigh
Secrets, internal hosts or proprietary logic exposed in shipped prompts.
•Embedded credentials — found: hardcoded credential · StJudeWasHere-seonaut-880b312/internal/services/user_test.go (CWE-798)expected
•Internal host / private infrastructure reference — shipped content references a private IP range or internal-only host · StJudeWasHere-seonaut-880b312/web/templates/dashboard.html (CWE-200)risk surface
⚠LLM05Improper Output Handlingmedium
Code that pipes model/user output into shell, eval, SQL or paths unsafely.
•Suspicious code patterns — dynamic code execution · StJudeWasHere-seonaut-880b312/web/static/echarts.min.js (CWE-95)risk surface
§LLM09MisinformationGovernance
Artifacts designed to produce false/deceptive output.
Detectable only by runtime behavioral evaluation; addressed via responsible-use attestation.
◷LLM10Unbounded ConsumptionRuntime-enforced
Unbounded loops/recursion causing DoS or runaway cost.
Enforced at runtime by the gateway (rate limits + spend caps + size caps); static check flags unbounded loops.
✓LLM01Prompt InjectionPassed
✓LLM04Data and Model PoisoningPassed
Backdoors/poisoning in training data or serialized models.
Behavioral poisoning needs model execution; static check covers unsafe serialization + dataset skew only.
✓LLM08Vector and Embedding WeaknessesPassed
PII or plaintext source leakage in embedding/vector exports.
Embedding inversion/poisoning is largely runtime; static check covers PII in vector exports.
OWASP Machine Learning Security Top 10
⚠ML06AI Supply Chaincritical
Compromised PyPI/npm packages, typosquats, unsafe serialized models.
•Vulnerable dependencies — 73 known vulnerabilities in: golang.org/x/crypto@0.51.0, golang.org/x/net@0.54.0, stdlib@1.25.0 (CWE-1395)known CVE · -25 pts
⚠ML09Output Integritymedium
Middleware tampering with model outputs in transit.
Gateway enforces TLS + response integrity; static check flags output-rewriting code.
•Suspicious code patterns — dynamic code execution · StJudeWasHere-seonaut-880b312/web/static/echarts.min.js (CWE-95)risk surface
§ML01Input Manipulation (Adversarial)Governance
Models vulnerable to adversarial perturbations.
Requires runtime robustness evaluation; addressed via publisher robustness attestation.
§ML03Model InversionGovernance
Training data reconstructable from a model's outputs.
Runtime/evaluation property; addressed via model-card data-provenance + DP attestation.
§ML04Membership InferenceGovernance
Determining whether a record was in the training set.
Runtime/evaluation property; addressed via overfitting disclosure + DP attestation.
§ML08Model SkewingGovernance
Models trained on skewed data producing biased output.
Requires fairness evaluation; addressed via model-card bias/limitations disclosure.
✓ML02Data PoisoningPassed
Poisoned training datasets with triggers or anomalous distributions.
Static check covers trigger phrasing, PII and label skew; full poisoning detection is runtime.
✓ML05Model TheftPassed
Unlicensed re-distribution / license-incompatible derivatives.
Static check verifies license declaration; extraction throttling is runtime.
✓ML07Transfer Learning AttackPassed
Backdoored base models / LoRA adapters propagating to derivatives.
Backdoor detection needs behavioral probing; static check covers unsafe serialization + provenance.
✓ML10Model Poisoning (Weights)Passed
Tampered model weight files; integrity must be verifiable.
Static check enforces safe formats + records a content hash for downstream verification.
Other findings (6) · hygiene / uncategorized
•Unrecognized file type — '.dockerignore' is not on the allowlist · StJudeWasHere-seonaut-880b312/.dockerignorerisk surface
•Unrecognized file type — '.gitignore' is not on the allowlist · StJudeWasHere-seonaut-880b312/.gitignorerisk surface
•Unrecognized file type — '.?' is not on the allowlist · StJudeWasHere-seonaut-880b312/Dockerfilerisk surface
•Unrecognized file type — '.mod' is not on the allowlist · StJudeWasHere-seonaut-880b312/go.modrisk surface
•Unrecognized file type — '.sum' is not on the allowlist · StJudeWasHere-seonaut-880b312/go.sumrisk surface
•Suspicious network references — raw IP URL (6 URLs) · StJudeWasHere-seonaut-880b312/internal/issues/page/links_test.gorisk surface
✔ verified source · pinned StJudeWasHere-seonaut-880b312
Check against a policy

The same gate an agent runs before installing (POST /api/v1/trust/seonaut-seo-audit-tool/check). Click a policy:

Consume SEOnaut — Open-Source SEO Audit Tool programmatically. Authenticate with an API key or session — see Authorize an agent.

# Agents: CHECK BEFORE YOU INSTALL (no auth) — score, grade, level, capability manifest
curl https://ai-supply.store/api/v1/trust/seonaut-seo-audit-tool

# Gate against your org policy (returns { pass, violations })
curl -X POST https://ai-supply.store/api/v1/trust/seonaut-seo-audit-tool/check \
  -H "Content-Type: application/json" \
  -d '{"minGrade":"B","denyPermissions":["shell"],"denyUnknownEgress":true}'

# CLI
npx ai-supply add seonaut-seo-audit-tool

# REST (install → download)
curl -X POST https://ai-supply.store/api/v1/listings/seonaut-seo-audit-tool/install \
  -H "Authorization: Bearer $AIM_KEY"

# MCP tool
install_listing({ "slug": "seonaut-seo-audit-tool" })
OpenAPI spec →
vlatest
! Security: Review · 751mo ago

Curated mirror — latest upstream source. See the repository for tagged releases.

Sign in and install this listing to leave a review.

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