Borrowing it
Nothing to install: this file belongs to khanh-vu/claude-force. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/khanh-vu/claude-force/main/.claude/skills/seo-audit-checklist/SKILL.mdgit clone --depth 1 https://github.com/khanh-vu/claude-forceWrote 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.
[](https://agentmods.dev/skills/khanh-vu/claude-force/seo-audit-checklist)<a href="https://agentmods.dev/skills/khanh-vu/claude-force/seo-audit-checklist"><img src="https://agentmods.dev/badge/skills/khanh-vu/claude-force/seo-audit-checklist/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.
<a href="https://agentmods.dev/skills/khanh-vu/claude-force/seo-audit-checklist"><img src="https://agentmods.dev/badge/skills/khanh-vu/claude-force/seo-audit-checklist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00000 | $0.04173 |
| Opus 5 | $0.00000 | $0.02086 |
| Sonnet 5 | $0.00000 | $0.00835 |
| Haiku 4.5 | $0.00000 | $0.00417 |
Grade A, and why
seo-audit-checklist scanned grade A with 1 finding 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
from urllib.parse import urlparse, urljoin How it starts
The opening of the file, as written. The whole thing — 556 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SEO Audit Checklist
Comprehensive patterns and automation for conducting technical SEO audits and identifying optimization opportunities.
Automated SEO Audit Script
import requests
from bs4 import BeautifulSoup
from urllib.parse import urlparse, urljoin
import json
from typing import Dict, List, Set
class SEOAuditor:
"""Automated SEO audit checker"""
def __init__(self, url: str):
self.url = url
self.domain = urlparse(url).netloc
self.issues = {
"critical": [],
"high": [],
"medium": [],
"low": []
}
self.recommendations = []
def audit(self) -> Dict:
"""Run complete SEO audit"""
try:
response = requests.get(self.url, timeout=10)
self.soup = BeautifulSoup(response.text, 'html.parser')
# Run all checks
self.check_title_tag()
self.check_meta_description()
self.check_heading_hierarchy()
self.check_images()
self.check_canonical()
self.check_robots_meta()
self.check_structured_data()
self.check_open_graph()
self.check_mobile_viewport()
self.check_https()
return {
"url": self.url,
"issues": self.issues,
"recommendations": self.recommendations,
"score": self._calculate_score()
}
except Exception as e:
return {"error": str(e)}
def check_title_tag(self):
"""Validate title tag"""
title = self.soup.find('title')
if not title:
self.issues["critical"].append({
"type": "missing_title",
"message": "Missing <title> tag",
"fix": "Add <title> tag with 50-60 characters"
})
elif title:
title_text = title.string.strip() if title.string else ""
length = len(title_text)
if length < 30:
self.issues["high"].append({
"type": "title_too_short",
"message": f"Title too short ({length} chars)",
"current": title_text,
"fix": "Expand title to 50-60 characters"
})
elif length > 60:
self.issues["medium"].append({
"type": "title_too_long",
"message": f"Title too long ({length} chars)",
"current": title_text,
"fix": "Reduce title to 50-60 characters"
})
def check_meta_description(self):
"""Validate meta description"""
meta_desc = self.soup.find('meta', attrs={'name': 'description'})
if not meta_desc or not meta_desc.get('content'):
self.issues["high"].append({
"type": "missing_meta_description",
"message": "Missing meta description",
"fix": "Add meta description (150-160 characters)"
})
else:
content = meta_desc.get('content', '').strip()
length = len(content)
if length < 120:
self.issues["medium"].append({
"type": "meta_desc_too_short",
"message": f"Meta description too short ({length} chars)",
"fix": "Expand to 150-160 characters"
})
elif length > 160:
self.issues["medium"].append({
"type": "meta_desc_too_long",
"message": f"Meta description too long ({length} chars)",
"fix": "Reduce to 150-160 characters"
})
def check_heading_hierarchy(self):
"""Check H1-H6 hierarchy"""
h1_tags = self.soup.find_all('h1')
if len(h1_tags) == 0:
self.issues["high"].append({
"type": "missing_h1",
"message": "No H1 tag found",
"fix": "Add exactly one H1 tag per page"
})
elif len(h1_tags) > 1:
self.issues["medium"].append({
"type": "multiple_h1",
"message": f"Multiple H1 tags found ({len(h1_tags)})",
"fix": "Use only one H1 per page"
})
# Check for heading gaps
heading_levels = []
for i in range(1, 7):
if self.soup.find(f'h{i}'):
heading_levels.append(i)
for i in range(len(heading_levels) - 1):
if heading_levels[i+1] - heading_levels[i] > 1:
self.issues["low"].append({
"type": "heading_hierarchy_gap",
"message": f"Heading hierarchy skips from H{heading_levels[i]} to H{heading_levels[i+1]}",
"fix": "Use sequential heading levels"
})
def check_images(self):
"""Check image optimization"""
images = self.soup.find_all('img')
for img in images:
# Check alt text
if not img.get('alt'):
self.issues["high"].append({
"type": "missing_alt_text",
"message": f"Image missing alt text: {img.get('src', 'unknown')}",
"fix": "Add descriptive alt text to all images"
})
# Check for explicit dimensions
if not img.get('width') or not img.get('height'):
self.issues["medium"].append({
"type": "missing_image_dimensions",
"message": f"Image missing width/height: {img.get('src', 'unknown')}",
"fix": "Add explicit width and height to prevent CLS"
})
# Check for lazy loading
if not img.get('loading'):
self.issues["low"].append({
"type": "missing_lazy_loading",
"message": f"Image missing lazy loading: {img.get('src', 'unknown')}",
"fix": "Add loading='lazy' for below-fold images"
})
def check_canonical(self):
"""Check canonical URL"""
canonical = self.soup.find('link', rel='canonical')
if not canonical:
self.issues["medium"].append({
"type": "missing_canonical",
"message": "Missing canonical link tag",
"fix": "Add <link rel='canonical' href='...'>"
})
elif canonical:
href = canonical.get('href', '')
if not href.startswith('http'):
self.issues["high"].append({
"type": "invalid_canonical",
"message": "Canonical URL is not absolute",
"current": href,
"fix": "Use absolute URL for canonical tag"
})
def check_robots_meta(self):
"""Check robots meta tag"""
robots = self.soup.find('meta', attrs={'name': 'robots'})
if robots:
content = robots.get('content', '').lower()
if 'noindex' in content:
self.issues["critical"].append({
"type": "noindex_found",
"message": "Page has noindex directive",
"fix": "Remove noindex if page should be indexed"
})
if 'nofollow' in content:
self.issues["high"].append({
"type": "nofollow_found",
"message": "Page has nofollow directive",
"fix": "Remove nofollow if links should be followed"
})
def check_structured_data(self):
"""Check for structured data"""
json_ld = self.soup.find_all('script', type='application/ld+json')
if not json_ld:
self.issues["medium"].append({
"type": "missing_structured_data",
"message": "No structured data found",
"fix": "Add Schema.org JSON-LD structured data"
})
else:
for script in json_ld:
try:
data = json.loads(script.string)
if '@context' not in data:
self.issues["high"].append({
"type": "invalid_structured_data",
"message": "Structured data missing @context",
"fix": "Add @context: 'https://schema.org'"
})
except json.JSONDecodeError:
self.issues["high"].append({
"type": "invalid_json_ld",
"message": "Invalid JSON-LD syntax",
"fix": "Fix JSON-LD syntax errors"
})
def check_open_graph(self):
"""Check Open Graph tags"""
required_og = ['og:title', 'og:description', 'og:image', 'og:url']
missing = []
for prop in required_og:
if not self.soup.find('meta', property=prop):
missing.append(prop)
if missing:
self.issues["medium"].append({
"type": "missing_open_graph",
"message": f"Missing Open Graph tags: {', '.join(missing)}",
"fix": "Add all required Open Graph meta tags"
})
def check_mobile_viewport(self):
"""Check mobile viewport meta tag"""
viewport = self.soup.find('meta', attrs={'name': 'viewport'})
if not viewport:
self.issues["critical"].append({
"type": "missing_viewport",
"message": "Missing viewport meta tag",
"fix": "Add <meta name='viewport' content='width=device-width, initial-scale=1'>"
})
def check_https(self):
"""Check if site uses HTTPS"""
if not self.url.startswith('https://'):
self.issues["critical"].append({
"type": "not_https",
"message": "Site not using HTTPS",
"fix": "Implement SSL certificate and redirect HTTP to HTTPS"
})
def _calculate_score(self) -> int:
"""Calculate SEO score (0-100)"""
weights = {"critical": -20, "high": -10, "medium": -5, "low": -2}
deductions = sum(
weights[severity] * len(issues)
for severity, issues in self.issues.items()
)
return max(0, 100 + deductions)
# Usage example
def run_seo_audit(url: str) -> Dict:
"""Run comprehensive SEO audit on URL"""
auditor = SEOAuditor(url)
results = auditor.audit()
# Print summary
print(f"SEO Score: {results['score']}/100")
print(f"\nCritical Issues: {len(results['issues']['critical'])}")
print(f"High Priority: {len(results['issues']['high'])}")
print(f"Medium Priority: {len(results['issues']['medium'])}")
print(f"Low Priority: {len(results['issues']['low'])}")
return results
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 · 556 lines · 0 tokens per session scan A a933cc642e3b
seo-audit-checklist is a skill published in the GitHub repository khanh-vu/claude-force (5 stars, last pushed 9mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,173 tokens. A static security scan graded it A with 1 finding (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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