Will it change my site?

No. Lexicon only reads public pages. Drafts stay drafts, including in WordPress, unless you confirm a live update. Full Auto never publishes.

Is this a ranking score?

No. The score is Lexicon's own measure, not a Google score. It points you to technical problems that hold back visibility. We don't promise rankings or traffic.

What is the AI Visibility Index?

One number for how ready your site is to be found and cited by AI tools. It combines how often checked AI answers cited you, an answer-readiness checklist, whether Google, Bing and Brave can index you, valid structured data, and AI crawler access. Only parts measured on that audit count, and you can track it in the monitoring tab.

Which AI tools do you check?

Claude, ChatGPT (via OpenAI's web search, shown as "OpenAI" in reports), Perplexity and Gemini, on paid audits.

Do you check whether Google has indexed my pages?

Lexicon checks whether each page is eligible to be indexed (no stray noindex, robots.txt block or wrong canonical). With Search Console connected, audits can also read your Search Console data. IndexNow submits pages to Bing.

Where do Core Web Vitals come from?

Google PageSpeed Insights and the Chrome UX Report, when Google has data for your page.

Can I use it from my coding tool?

Yes, on any paid plan, via MCP. Setup steps for Claude Code, Cursor and Claude Desktop are on the MCP page.

How does weekly tracking work?

Save a site on Starter or above. Lexicon re-audits it every Monday, using one audit from your allowance, and records your score, new problems and cleared issues.

What if I run out of audits?

Top up the credit wallet. Nothing is spent until you set a monthly cap, and you confirm each charge.

Does it check private pages?

No. Public pages only, and it follows robots.txt.

Will it slow my site down?

No. It pauses about a second between pages and stops at your plan's page limit.

Technical SEO and AI visibility

Get found on Google and named by Claude, ChatGPT, Perplexity and Gemini.

Lexicon finds what's keeping your pages out of search results and AI answers, and tells you what to fix first, in plain English. Paid plans also check whether Claude, ChatGPT, Perplexity and Gemini cite your site,² then re-check every week so you can watch your progress.

Run a free audit See what's included

One public URL. No card needed. Read-only: Lexicon never changes your site.

Example

example.com

Example audit · 4 things to fix first

P0
Pricing page has no titleSearch engines may write their own label for it.
P1
AI crawlers are blockedYour robots.txt shuts out known AI crawlers site-wide.
P1
Not cited in an AI answerAsked a buyer question, the answer cited other sites.
P2
No /llms.txt fileOptional, but easy to add.

Example data. Not a real site.

This is what you get. Every fix is ranked by priority, linked to the page it's on, and explained in plain English.

Why it matters

Small problems quietly send your visitors somewhere else

Untitled pages

Without a title, search engines write one for you, and it's rarely the one you'd choose.

Pages search engines are told to skip

One stray noindex tag, robots.txt rule or wrong canonical can keep a page out of results. Lexicon finds them.

AI crawlers locked out

Block them by accident and those AI tools can't read your pages.

Answers that cite your competitors

When a buyer asks an AI tool a question in your space, are you in the sources, or is someone else?

Slow pages

Visitors feel it. Lexicon pulls your Core Web Vitals straight from Google.

These problems are easy to miss and quick to fix once you know where they are. Lexicon shows you where.

What you get

What Lexicon does for your site

Get found on Google

A full technical audit (titles, descriptions, headings, redirects, canonicals, sitemaps, broken links, structured data, alt text and noindex mistakes) with real speed data from Google PageSpeed Insights and the Chrome UX Report. On paid plans, connect Google Search Console and Bing Webmaster Tools so each audit sees what they see, and send freshly crawled pages to Bing with IndexNow.

Get named in AI answers

Make sure AI crawlers can read you and your /llms.txt is in place. Paid audits then ask Claude, ChatGPT, Perplexity and Gemini real buyer questions and record whether they cite you.² Up to 3 questions per engine on Starter, 5 on Professional and 8 on Business.

It all rolls into one number to track: your AI Visibility Index.

Stay fixed

Save a site and Lexicon re-checks it every week, so new problems don't sneak in. Starter watches 1 site, Professional 5 and Business 10.

Short on time? Professional and Business draft fresh titles, meta descriptions and headings for you, and save them to WordPress as drafts. Nothing goes live until you say so.

How it works

Find it. Fix it. Prove it. Keep it.

Enter your URL

Lexicon reads your public pages like a polite visitor.
Get your fix list

The most important fixes come first, each with the page it's on and plain-English steps.
Fix and verify

Do it yourself, hand it to your developer, or start from a Lexicon draft. Then re-check to prove it worked.
Keep watching

On paid plans, a weekly check catches anything new.

Run a free audit

Weekly

See your progress, week by week

Save a site and every Monday morning Lexicon audits it again, automatically.

Your score, every week. A dated record of every check, so you can see your fixes add up.
Your AI Visibility Index, every week. Track it check by check. On Business, each weekly check asks the AI engines again.
New problems, caught early. Anything new is flagged with the page it's on.
Fixes, confirmed. See which issues have cleared since last time.
The Monday email. Your top fixes for the week, your score change, new problems, and whether last week's fixes held.¹

Each weekly check uses one audit from your monthly allowance.

Start free, upgrade to track weekly

Features

Everything in one place

To get found on Google

Technical SEO audit, ranked P0 to P2
Core Web Vitals from Google
Search Console and Bing Webmaster (paid)
Instant Bing submission with IndexNow

To show up in AI answers

AI crawler access check
/llms.txt check
Citation checks on Claude, ChatGPT, Perplexity, Gemini (paid)²
AI Visibility Index

To save time

Weekly monitoring, Starter and up
The Monday email¹
Content-refresh drafts, saved to WordPress as drafts (Pro and Business)
Full Auto on Business: the Monday check, up to 3 drafts, then your email. Never auto-published
Credit wallet for extra work: you set the cap, you confirm every charge

To share and build

Printable report (save as PDF) and Markdown export
MCP for Claude Code, Cursor and Claude Desktop (paid plans)
Monitor up to 10 sites (Business)

Coming soon

Security and trust signals

Coming soon: a read-only check for the security basics, such as HSTS, a Content-Security-Policy, certificate expiry, and exposed /.env or /.git files. Mixed content and sites that don't redirect to HTTPS are already flagged in every audit today.

MCP

Fix SEO issues where you write code

Connect Claude Code, Cursor or Claude Desktop to Lexicon on any paid plan, and work on your fix list without leaving your editor. Ask your coding tool to:

Start an audit and check its status and score.
Read the report as Markdown or JSON, or filter issues by severity.
Get the fix steps for any issue.
Verify a fix on one page. This doesn't use an audit.
See your monitoring: what changed this week, and any regressions.
Read citation results, and ask Claude one more question when you need it (you see the price first).
Draft a content refresh, saved as a draft and never published.

Same allowance as your dashboard. Your API key is stored hashed.

Set up MCP

Who it's for

Built for owners, freelancers, agencies and developers

Site owners

Know exactly what to fix first, without learning SEO.

Freelancers

Audit a client's site and hand over a clean report they'll understand.

Agencies

Watch up to 10 client sites every week on Business.

Developers

Pull findings into your coding tool and fix them where you work.

Pricing

Start free. Upgrade when you need more.

Free: 1 full audit a month, up to 50 pages. Paid plans start at $29/month, with more audits, bigger sites, AI citation checks and weekly tracking. Pay yearly and get 2 months free.

See plans

FAQ

Common questions

Will it change my site?: No. Lexicon only reads public pages. Drafts stay drafts, including in WordPress, unless you confirm a live update. Full Auto never publishes.
Is this a ranking score?: No. The score is Lexicon's own measure, not a Google score. It points you to technical problems that hold back visibility. We don't promise rankings or traffic.
What is the AI Visibility Index?: One number for how ready your site is to be found and cited by AI tools. It combines how often checked AI answers cited you, an answer-readiness checklist, whether Google, Bing and Brave can index you, valid structured data, and AI crawler access. Only parts measured on that audit count, and you can track it in the monitoring tab.
Which AI tools do you check?: Claude, ChatGPT (via OpenAI's web search, shown as "OpenAI" in reports), Perplexity and Gemini, on paid audits.
Do you check whether Google has indexed my pages?: Lexicon checks whether each page is eligible to be indexed (no stray noindex, robots.txt block or wrong canonical). With Search Console connected, audits can also read your Search Console data. IndexNow submits pages to Bing.
Where do Core Web Vitals come from?: Google PageSpeed Insights and the Chrome UX Report, when Google has data for your page.
Can I use it from my coding tool?: Yes, on any paid plan, via MCP. Setup steps for Claude Code, Cursor and Claude Desktop are on the MCP page.
How does weekly tracking work?: Save a site on Starter or above. Lexicon re-audits it every Monday, using one audit from your allowance, and records your score, new problems and cleared issues.
What if I run out of audits?: Top up the credit wallet. Nothing is spent until you set a monthly cap, and you confirm each charge.
Does it check private pages?: No. Public pages only, and it follows robots.txt.
Will it slow my site down?: No. It pauses about a second between pages and stops at your plan's page limit.

Find out what's keeping you out of search and AI answers.

Your first audit is free. See your top fixes in plain English.