Free tools
Check a domain, a certificate, its DNS — or whether AI assistants can read your website at all. All free, no sign-up.
Check if a domain is free, and see who holds it and when it expires.
Every one of these answers a question a client has asked us at some point — is this domain taken, why has my site stopped loading, why does the browser say my certificate has expired, why does ChatGPT not know my business exists. They take a few seconds to answer and there is no reason to charge for them.
If a tool tells you something is wrong and you would rather not fix it yourself, tell us about your project — we will look at it and say honestly whether it needs work or is fine as it is.
All 12 tools
- Invoice generatorWrite an invoice, watch it take shape, and save it as a PDF. Free, unlimited, no sign-up.
- WHOIS lookupSee whether a domain is free, who holds it, and when it expires.
- AI readiness checkSee what ChatGPT, Claude and Gemini can actually learn from your website.
- SSL certificate checkerConfirm a site’s certificate is valid, and see exactly how many days remain.
- DNS checkerRead the live DNS records for any domain, straight from public resolvers.
- llms.txt generatorReads your site and writes the llms.txt file for you, ready to upload.
- Email deliverability checkFind out why your email lands in spam — SPF, DKIM, DMARC and MX, in one look.
- Tech stack checkerSee what a website is built on — the CMS, the framework, the analytics, the CDN.
- Security headers checkSeven headers that cost nothing to add and stop most of what gets done to small sites.
- Accessibility quick checkThirteen things a screen reader needs, checked in seconds — and an honest note on what this cannot see.
- Local business readinessWhether an assistant asked for a business like yours in Siem Reap or Phnom Penh could actually name you.
- Server location & speedWhere your site is served from, and what that distance costs a visitor in Cambodia.