Four free diagnostic tools that give you plain-English answers — not just raw data. No account needed.
Free tool · No account needed
DNS + MX Checker
Enter any domain and we check your DNS records, mail server configuration, SPF, and DMARC — then explain what each result means and what to do about it. Unlike MxToolbox, we tell you the fix.
What this checks
A records — where your domain points
MX records — where your email goes
NS records — who controls your DNS
SPF — whether spoofed email gets blocked
DMARC — your email authentication policy
Live data via Cloudflare DNS-over-HTTPS. No server needed, no API key required.
Free tool · No account needed
SSL + Security Headers
Checks your SSL certificate status and HTTP security headers. We show you which headers to add and the exact code.
What this checks
HTTPS — SSL certificate validity
HSTS — forces browsers to always use HTTPS
Content-Security-Policy — prevents XSS attacks
X-Frame-Options — blocks clickjacking
X-Content-Type-Options — stops MIME sniffing
Referrer-Policy — controls data leaks to third parties
Note: Full HTTP header analysis requires a server-side connection. Full header inspection coming soon via Cloudflare Worker integration.
Free tool · No account needed
Schema Maker
Generate JSON-LD schema markup for any page type. Fill in the fields, copy the code, paste into RankMath.
Schema types
Article — blog posts and news articles
FAQ — question and answer content for AI Overviews
Local Business — bricks-and-mortar
Person — individuals, authors, consultants
Product — e-commerce items
Organisation — companies and brands
Free tool · No account needed
AI Prompt Vulnerability Scanner
Checks whether your website content contains patterns that could manipulate AI systems — and whether you have the signals needed for AI to cite you accurately. The only free tool of its kind.
What this scans for
Prompt injection patterns
Role-assignment and persona hijack language
Schema markup and AI readability signals
Canonical and meta description signals
AI chatbot and widget detection
Current version: pattern matching on public content. Coming soon: full Claude API-powered analysis.
Free tool · No account needed
Domain Age Checker
Enter any domain and we calculate its age from the WHOIS registration date. Domain age is a trust signal — older domains generally carry more authority with Google and AI systems. Use this to benchmark your domain against competitors.
What this tells you
Domain registration date — when it was first registered
Domain age in years, months, and days
Age benchmark — how it compares to typical authority thresholds
Registrar information — who manages the domain
Expiry date — when it needs to be renewed
Data via RDAP (Registration Data Access Protocol) — the modern replacement for WHOIS, maintained by ICANN. Works for most .com, .com.au, .net, .org, and country domains.
Free tool · No account needed
DNS Propagation Map
When you update your DNS — pointing a domain to a new host, adding records, changing nameservers — the change takes time to spread across the global DNS network. This tool shows you which regions have picked up your changes and which are still serving the old records.
When to use this
After pointing a domain to a new host — check if it has propagated
After adding MX records for email — confirm globally visible
After adding SPF or DMARC — verify all regions have picked it up
After changing nameservers — track rollout progress globally
Troubleshooting — check if different users in different countries see different results
Checks 8 global DNS resolvers across Asia-Pacific, Americas, Europe, and the Middle East using Cloudflare DNS-over-HTTPS. Full propagation typically takes 15 minutes to 48 hours depending on your TTL setting.
Free tool · No account needed
Robots.txt Checker
Fetches your robots.txt file and explains in plain English what each rule means — which bots are allowed, what's blocked, and critically, whether AI crawlers like GPTBot, ClaudeBot, and Googlebot can access your site. If AI crawlers are blocked, you will never be cited in AI Overviews or AI-generated answers.
What this checks
Googlebot access — can Google crawl and index your site
GPTBot (ChatGPT) — is OpenAI allowed to read your content
ClaudeBot (Anthropic) — is Claude allowed to read your content
PerplexityBot — is Perplexity AI allowed to read your content
Blocked paths — which directories and pages are off-limits
Sitemap declaration — whether your sitemap URL is declared
Critical for AI visibility: Many sites accidentally block AI crawlers in their robots.txt — often by using a blanket rule that was added years ago. If GPTBot or ClaudeBot are blocked, no amount of schema or content optimisation will get you cited in AI-generated answers.
Free tool · No account needed
Meta Tag Previewer
Enter any URL and see exactly how it appears in Google search results, and how it looks when shared on social media. Checks title length, description truncation, Open Graph tags, and Twitter Card setup. Use this after configuring RankMath to confirm everything looks right before going live.
What this previews
Google search result preview — title, URL, and description as Google shows them
Social sharing preview — how the page looks when shared on LinkedIn or Facebook
Title length check — Google truncates titles over ~60 characters
Description length check — truncated after ~155 characters in search results
Open Graph tags — og:title, og:description, og:image
Tip: Run this on every page after setting up RankMath meta titles and descriptions. The Google preview shows you exactly what searchers and AI systems will see — before you submit to Search Console.
Free tool · Google PageSpeed Insights API
Page Speed Grader
Runs Google's PageSpeed Insights analysis on any URL and returns your Core Web Vitals scores. Page speed is a direct Google ranking factor and affects AI crawl efficiency. Slow pages get crawled less frequently and rank lower.
What this measures
Performance score — 0 to 100, Google's overall speed rating
LCP — Largest Contentful Paint, how fast the main content loads
FID / INP — Interaction to Next Paint, how responsive the page feels
CLS — Cumulative Layout Shift, whether elements jump around while loading
FCP — First Contentful Paint, when the first content appears
Mobile vs Desktop — separate scores for each device type
Powered by Google PageSpeed Insights API. This is the same data Google uses to evaluate page experience. Aim for 90+ on mobile. Under 50 is a ranking problem that needs fixing before anything else.
Free tool · No account needed
Sitemap Validator
Fetches your XML sitemap, checks it is well-formed, and verifies the URLs inside it are accessible. A broken or incomplete sitemap means Google and AI crawlers miss pages entirely — even if those pages are perfectly written and fully optimised.
What this validates
Sitemap exists and is accessible at the standard URL
XML is well-formed — no syntax errors that break parsing
URL count — how many pages are declared
Sitemap index — detects if it is a sitemap index pointing to child sitemaps
Sample URL check — verifies a sample of declared URLs are reachable
lastmod dates — checks modification dates are present and valid
Tip: After Rashmi submits your sitemap to Google Search Console, run this tool to confirm the sitemap is valid. Then check Search Console 48 hours later to confirm Google has started indexing the pages.
Powered by OGO1 · Coming Soon
LLM Visibility Check
See how your brand and domain appear in AI-generated answers across ChatGPT, Perplexity, Google AI Overviews, Gemini, and Claude. Are you being cited? Are you being misrepresented? Are competitors owning the answers in your space? This is the next frontier of search — and most businesses have no idea where they stand.
What this will check
ChatGPT — does your brand or domain appear in relevant answers
Perplexity AI — are you being cited as a source
Google AI Overviews — are you in the featured AI answer at the top of Google
Gemini — brand mention and citation frequency
Sentiment — are AI systems describing your brand accurately and positively
Competitor comparison — who is being cited instead of you, and why
Powered by OGO1
OGO1 is our AI authority scoring platform. It measures six dimensions of AI visibility — entity clarity, citation frequency, schema quality, content authority, crawl accessibility, and sentiment — and returns a single score that tells you exactly where you stand and what to fix.
What you get with OGO1
OGO1 score out of 100 across six dimensions
Live citation check across ChatGPT, Perplexity, Gemini, and Google AI
Competitor benchmarking — who is outranking you in AI answers
Plain-English action list — exactly what to fix and in what order
Monthly tracking — watch your score improve as you implement changes
Coming soon as a free tool on this page. The LLM Visibility Check will let you enter your domain and get an instant snapshot of how you appear across major AI systems — powered by OGO1. In the meantime, visit the OGO1 page to learn more or book a session with Douglas to run the full audit.
Paid Tool · One-time
Your new website. In 60 seconds.
Answer five questions and we generate a complete website brief, visual mockup, CMS recommendation, and custom RankMath SEO guide — tailored to your industry. Powered by Claude AI.
What you get
Competitor analysis — what they're doing, where your gaps are
Brand recommendation — colour palette, fonts, tone