Free tools

Free tools for AI-era websites.

Thirteen practical tools built from the checks we run with clients, for AI search visibility and website security. Free, no sign-up, and they run entirely in your browser.

Seven tools

AI search and visibility.

Check and improve how ChatGPT, Perplexity, Gemini and Google AI Overviews find, understand and recommend your brand.

Free · 3 minutes

AI Search Readiness Scorecard

Is your website AI-friendly? Fifteen questions show how likely ChatGPT, Perplexity, Gemini and Google AI Overviews are to recommend your brand, with a prioritised fix list.

Free · Instant

AI Content Citability Checker

Will AI cite your content? Paste a page or draft and get a score for how easily ChatGPT, Perplexity and AI Overviews can quote it, with clear fixes.

Free · Live results

AI Automation ROI Calculator

How much could AI automation save your team? Estimate the hours and money saved each year, with payback period and ROI, then adjust every assumption.

Free · Up to 28 prompts

AI Visibility Prompt Generator

What are your buyers asking AI? Generate the prompts to test in ChatGPT, Perplexity and Gemini, with a free sheet to track whether AI mentions you.

Free · 10 AI platforms

GA4 AI Traffic Regex Generator

Track ChatGPT, Perplexity, Gemini, Claude and Copilot visits in Google Analytics 4. Get a tested regex, check it against your own sources, then follow the setup steps.

Free · 18 AI bots

AI robots.txt and llms.txt Generator

Decide which AI bots can read your site. Build robots.txt rules for 18 verified AI crawlers, check your current file and create an llms.txt.

Free · 6 schema types

Schema Markup Generator

Help search engines and AI understand your site. Generate valid JSON-LD for your organisation, location, articles, breadcrumbs and site name, checked as you type.

Six tools

Website security.

Automated checks for the risks that arrive with AI agents reading the web. They show you what to look at, and they're not a substitute for a security audit.

Free · 10 checks

AI Prompt Injection Scanner

Is your website hiding instructions for AI? Paste a page's HTML to find invisible text, comments, attributes, schema and Unicode tricks aimed at ChatGPT, Claude and AI agents.

Free · 8 checks

Domain Hijack Checker

Could someone hijack your domain? Check its registrar locks, renewal date, DNSSEC, CAA record and forgotten subdomains, with a score out of 100 and a fix for every gap.

Free · 8 checks

Email Spoofing Checker

Can someone send email pretending to be you? Check your domain's SPF, DKIM and DMARC records, with a plain-English verdict, a score out of 100 and a fix for every gap.

Free · 40+ key types

API Key Leak Checker

Is your website leaking API keys? Scan your HTML and JavaScript for secret keys, tokens and passwords any visitor could copy, and see which keys are meant to be public.

Free · 12 questions

Staff AI Risk Scorecard

Are your staff using AI safely? Score how your team uses ChatGPT, Copilot and other AI tools, get a prioritised fix list and a free AI use policy template.

Free · RFC 9116

security.txt Generator

Tell people who find a security flaw on your site how to report it. Create a security.txt file, check your existing one and get a disclosure policy template.

More on website security

Frequently asked questions

Are these tools really free?

Yes. Every tool on this page is free to use, with no sign-up. Some tools offer an optional free review from our team if you'd like expert eyes on your result.

Do you store what I enter?

No. The tools run in your browser and your answers aren't sent or saved. Data only reaches us if you choose to submit a review request.

Who builds these tools?

GMK Digital, an AI-native digital agency in London. We build them from the same checks and frameworks we use with clients.

Do you offer security services?

No. GMK Digital is a digital agency, not a security firm. Our website security tools are free automated checks that show you what to look at. If one finds something you don't recognise, speak to your web developer or hosting provider.

Next step

Need more than a tool? Let's talk.

Our tools show you where you stand. If you'd like help closing the gaps, you'll speak directly to the strategist who'll do the work.