HALO SEO — AI & LLM Page Analyser

About

HALO SEO — AI & LLM Page Analyser

HALO SEO is the only Chrome extension that audits both traditional SEO signals and your page's visibility to AI language models like ChatGPT, Claude, and Perplexity — in a single click.
Powered by Claude AI (Anthropic), HALO gives you an instant, in-depth analysis of any webpage you're browsing, with actionable advice you can act on right now.

🤖 LLM VISIBILITY — THE FEATURE NO OTHER EXTENSION HAS
As AI-powered search engines become the new front door to the web, being found by bots like GPTBot, ClaudeBot, PerplexityBot, and Googlebot-Extended matters as much as ranking on Google.
HALO's dedicated LLMs tab shows you:

LLM Visibility Score (0–100) with animated meter
Bot access grid — instantly see which AI crawlers are allowed or blocked via robots.txt
llms.txt detection — is your site AI-ready?
Sitemap, FAQ schema, Breadcrumb, and Article schema checks
Author and publication date signals for AI trust
Reading level meter (Flesch-Kincaid grade)
Authority link analysis

No other SEO extension audits your AI discoverability like this.

📊 COMPREHENSIVE SEO AUDIT IN SECONDS
HALO analyses every critical on-page SEO factor and scores your page out of 100:

Title tag — length, presence, quality
Meta description — length and completeness
Heading structure (H1–H4) — hierarchy errors, duplicates, missing tags
Images — alt text audit with AI-generated suggestions for missing descriptions
Canonical URL, HTTPS, HTML lang attribute
Open Graph and Twitter Card tags
Schema markup detection (Article, FAQ, HowTo, BreadcrumbList, Person, Org, Review)
Word count, paragraph count, sentence length
Internal/external links, nofollow, authority domains
ARIA landmarks, lazy loading, hreflang
Script and stylesheet counts
Performance timing


📑 7 ANALYSIS TABS
Summary — Traffic-light overview of every SEO signal at a glance
Headings — Visual heading tree (H1–H4) with skip-level and duplicate error highlighting
Images — Per-image audit with alt status badges and AI-generated alt text suggestions
E-E-A-T — Structured audit under Google's Experience, Expertise, Authoritativeness, and Trustworthiness framework
LLMs — Full AI visibility audit (see above)
Technical — Complete data table of every extracted signal
AI Advice — Claude-powered recommendations in four sections:

🔴 Priority fixes
🔵 Quick wins
🟢 Strengths to build on
🟣 Strategic insight


🧠 CLAUDE AI — BUILT IN
HALO connects directly to the Anthropic API using your own API key. Claude reads your full page analysis and writes personalised, intelligent recommendations — not generic boilerplate tips. Choose between claude-sonnet-4-5 (most capable) or claude-haiku-4-5 (fastest), and set your token budget to control cost.
Your API key is stored locally in your browser. It is never sent anywhere except directly to Anthropic.

📈 SCAN HISTORY
HALO automatically saves your last 5 scans per website for 7 days. Come back to compare, track improvements, or restore a previous result instantly. Includes built-in storage pressure management so it never bloats your browser.

⬇ EXPORT TO CSV
Download a full data export of any scan — including all SEO signals, per-image details, and every AI advice section — in one click. Perfect for client reports or tracking progress over time.

🌓 DARK & LIGHT MODE
Clean, professional interface in dark or light theme. Your preference is saved automatically.

🔒 PRIVACY FIRST
HALO SEO collects no data. Nothing is sent to any server other than the Anthropic API when you choose to run an AI scan. Your API key lives only in your browser's local storage. No accounts. No tracking. No telemetry.
Full privacy policy: https://humwhistle.com/halo-seo-privacy-policy/

HOW TO GET STARTED

Install HALO SEO and click the extension icon on any webpage
Open Settings (⚙) and paste your Anthropic API key
Click "Scan this page"
Explore your SEO score, LLM visibility, headings, images, E-E-A-T, and AI advice

Get your free Anthropic API key at console.anthropic.com

PERMISSIONS USED

activeTab & scripting — to read SEO data from the page you're viewing
storage — to save your API key and scan history locally
host permissions — to fetch robots.txt, llms.txt, and sitemap.xml from any site you analyse


HALO SEO is an independent tool. It is not affiliated with Google, Anthropic, or any other platform mentioned.