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 29 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 readinessSee what ChatGPT, Claude and Gemini can actually learn from your website.
- SSL certificateConfirm a site’s certificate is valid, and see exactly how many days remain.
- DNS recordsRead 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 deliverabilityFind out why your email lands in spam — SPF, DKIM, DMARC and MX, in one look.
- Tech stackSee what a website is built on — the CMS, the framework, the analytics, the CDN.
- Security headersSeven headers that cost nothing to add and stop most of what gets done to small sites.
- AccessibilityThirteen 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.
- Sitemap and robots.txtThe two files every crawler asks for first, and the two most often quietly wrong.
- Redirects and mixed contentWhat actually happens between typing your name and seeing your page.
- Domain and certificate expiryThe two dates that take a website offline without warning, in one place.
- Broken linksEvery link on your home page, followed to see whether it still goes anywhere.
- Image compressorMake your pictures small enough for a phone. Nothing is uploaded.
- Favicon generatorOne logo in, every icon a browser and a phone will ask for out.
- QR code generatorA code for a link, a phone number or your Wi-Fi. Made in your browser, free for ever.
- Khmer word counterKhmer has no spaces between words, which is why ordinary counters get it wrong.
- Khmer Limon converterOld Khmer documents opened — and put back again. Both directions, in your browser.
- Khmer writing checkSpelling underlined where it is wrong, and the faults a dictionary would never catch.
- Khmer typing practiceNewLearn the NiDA keyboard the way it is really laid out — no Khmer keyboard needed to start.
- Khmer UnicodeKhmer that looks right on your screen and breaks on somebody else’s.
- Khmer date converterA date in the forms Cambodian paperwork actually asks for.
- Khmer slug makerA Khmer headline turned into a link somebody would actually paste.
- Cambodian phoneWhich network, whether it is valid, and every format you need it in.
- Khmer character mapEvery Khmer character, one click from your clipboard, with its code point.
- Khmer font previewerYour own words, in every Khmer web font, at the size you will actually use.
- Server location & speedWhere your site is served from, and what that distance costs a visitor in Cambodia.