Ask an AI to “fix my SEO” and it will read a few of your pages and give you generic advice. Black SEO Analyzer crawls your site and runs 300+ checks, so the answers come with actionable insights.
Free for 14 days, no card. Then $29/month.
Rather run it on your own machine? Download the desktop app for Windows, Mac or Linux.
An assistant on its own can open a few of your pages. With a crawler connected, it has checked the site.
Without a crawler
Fix the SEO on sethserver.com
I opened your homepage and three pages it links to. On those:
That's four pages. I can't say how many of the others have the same problems.
With Black SEO Analyzer connected
Fix the SEO on sethserver.com
I crawled 264 pages. Start with these:
Want the full list of URLs for any of these?
The numbers on the right are from a real crawl of sethserver.com, our founder's site, run through the hosted connector on November 9, 2026. The answer on the left is our illustration of an assistant working with a page-fetch tool; the lengths in it were measured on those pages on November 10, 2026. Both answers are shortened.
One click in Claude or ChatGPT, then sign in with your email. Nothing to install.
“Audit example.com.” “Check this page.” “What changed since the last crawl?”
Every issue comes with a severity, the affected URL and how to fix it, so the assistant can tell you what to do first.
An assistant can read a page. A crawler built in Rust reads every page it crawls and checks each one the same way every time.
Broken links, redirects, anchor text
Titles, descriptions, canonicals, Open Graph
Schema.org markup
Headings, duplicates, thin pages
Structure, parameters, HTTPS
Resource loading, compression, Web Vitals
Viewport, touch targets, responsive images
Alt text, form labels, heading order
Insecure links, forms, third-party scripts
Render-blocking and unoptimized assets
Language tags and hreflang
llms.txt, AI crawler access, extractable structure
The checks are the same everywhere. Pick the place you already work.
Start here
The hosted connector for Claude and ChatGPT. Crawls run on our servers and results are kept between chats.
Best for most people.
How the connector worksOn your machine
A visual app for Windows, Mac and Linux. No page limits, and it renders JavaScript for single-page apps.
Best for big sites and client audits.
Download the free trialOn your machine
The same app as a command. JSON, CSV, XML and HTML output for scripts and pipelines, and it plugs into Claude Code, Cursor and Codex.
Best for developers.
Read the CLI docsWhere it runs decides how you pay. Both start with 14 days free, no card.
Runs on our servers
Or $290 a year. Use it from Claude or ChatGPT with nothing to install. 25,000 crawled pages every rolling 30 days.
Runs on your machine
No subscription. Desktop app and command line, no page limits, all future updates and a source code guarantee.
Own a license? The hosted connector is $15/month. Buying for a team? The Agency License is $1,999 once. Full pricing
Coming from another crawler? See how bseoa compares with Screaming Frog and Sitebulb.
Free for 14 days, no card.
Or download the desktop app for Windows, Mac or Linux.