Free SEO tools, no email wall.
The checks I run first on any new site, cleaned up so you can run them yourself. Paste a URL, get a straight answer. If the problem's bigger than a tool can fix, you know where the call button is.
Most used
A first read on any site in under a minute.
Index Check
Paste a URL and see what's blocking indexing: status codes, noindex, robots.txt, canonical conflicts, missing sitemap.
Run the checkSEO Quick Check
One URL in, a fast technical health read out: HTTPS and redirects, robots.txt, sitemap, title, meta, headings, canonical, hreflang, structured data, social tags and domain history.
Check a siteCore Web Vitals Check
Real-user LCP, INP and CLS from Google's Chrome UX Report where available, plus a Lighthouse lab run, explained in plain language.
Test a pageCrawling & indexing
Redirects, sitemaps and international setup: where relaunches usually break.
Redirect & Header Check
Every hop from the URL you enter to the final page, with status codes, timing, and the security, caching and indexing headers your server sends.
Trace a URLHreflang Check
For multi-language and multi-country sites: language codes, x-default, self-references and return links, checked on the live alternate pages.
Check hreflangSitemap Check
Finds your XML sitemaps, checks format and limits, and samples URLs for redirects, errors, noindex and canonical conflicts.
Check a sitemapHTTP Header Check
Every response header of a URL, plus checks for X-Robots-Tag, canonical and hreflang in the Link header, Content-Type, caching, compression, ETag and HSTS.
Check headersCanonical Checker
Finds the canonical in the HTML and the HTTP Link header, flags conflicts and URL variants, and fetches the target for status, noindex and its own canonical.
Check a canonicalrobots.txt Tester & Generator
See how Google reads your robots.txt: status, size, syntax and ignored directives, and whether a URL is allowed for Googlebot, Bingbot and 13 AI bots. Plus a generator with AI bot presets.
Test robots.txthreflang Generator
HTML tags, an HTTP Link header and sitemap entries for your language and country versions, with DACH presets and checks as you type.
Generate tagsSearch appearance
What Google shows for your pages, and the markup behind it.
SERP Snippet & Meta Check
How your title and description will look in Google on desktop and mobile, with pixel-based truncation, plus Open Graph and social previews.
Preview a pageSchema Check
Finds the JSON-LD on a page, flags syntax errors and checks the fields Google needs for rich results on the most common types.
Check structured dataSchema Generator
Clean JSON-LD for Organization, LocalBusiness, FAQ, Article, Breadcrumb and Product. Fill in a form, copy the code. Runs in your browser.
Build markupGEO & AI search tools
Free GEO tools for visibility in ChatGPT, Perplexity and AI Overviews, and what content really costs.
Content Automation ROI Calculator
What manual content really costs you, vs. a production pipeline. Plug in your own numbers: articles, words, rates.
Open the calculatorAI Crawler Check
Can ChatGPT, Claude, Perplexity and Gemini read your page? Robots.txt rules and server responses for 13 AI bots, plus llms.txt, raw-HTML content and structured data.
Check a URLAI Search Checklist
Is your site ready for ChatGPT, Perplexity and AI Overviews? 27 checkpoints to tick off, saved in your browser, printable as PDF. Also in German.
Open the checklistllms.txt Checker & Generator
Checks an existing llms.txt against the llmstxt.org proposal, including up to 15 links, and builds a new one in your browser.
Check or createWhy these tools exist
Most free SEO tools are built to collect emails. These are built to answer a question: is this page indexable, does this redirect chain hurt, does Google see the schema. If a tool saves you an hour, good. If it surfaces something you can't fix alone, that's what the engagements are for, starting with the €290 diagnostic.
Questions that always come up
Are these really free?
Yes. No signup, no email wall. There is a rate limit per visitor so nobody can hammer other people's sites through my server.
Do the tools store my data?
Results are not saved. To run a check, this site's server fetches the public URL you enter and sends the result back to your browser. Cloudflare, which hosts the site, keeps short-lived technical request logs. The calculator, the checklist and the schema generator run entirely in your browser.
How accurate are they?
They read what a crawler reads: status codes, headers, HTML, robots.txt, sitemaps and structured data. That catches most technical blockers. What they can't see is anything that needs Search Console, server logs or a full crawl, so a clean result is a good sign, not a guarantee.
Which one should I start with?
The SEO Quick Check. It covers the basics across the board and tells you which specialist check to run next.
A tool found a problem. Now what?
Sometimes it's a five-minute edit, sometimes it's an architecture problem. If you want it sorted properly, the €290 Search & AI Diagnostic turns the findings into a prioritised fix list for your whole site.
Can you build a custom tool for my team?
Yes. Internal SEO tools and automations are part of what I do. See AI builds or book a call.
Tool didn't cut it? Let's talk.
Fifteen minutes, no pitch deck. If a free tool surfaced something messy, I'll tell you straight whether it's a quick fix or a project.