Small business owners have asked me the same question again and again: "Is my website OK, or do I need a new one?" Existing tools answer only part of it. PageSpeed shows speed, SSL Labs shows the certificate, another service checks email. Nobody puts it all into one clear answer.
So we built OLBO Website Checker: 13 checks in about a minute.
What it checks
Hosting, HTTPS and security headers, email protection (SPF, DMARC), the platform and its version, outdated components, known vulnerabilities, Google blacklists, site age, basic accessibility (European Accessibility Act), privacy (GDPR), Google search, AI search readiness (does the site let GPTBot and ClaudeBot in, is there an llms.txt) and mobile speed.
Three decisions that matter for website owners
- The check runs live. The server streams results one item at a time, so people see the program actually working instead of a pre-drawn template. That builds more trust than any description.
- "Don't take our word for it." Next to the first results there are links to independent free tools (SSL Labs, MXToolbox, BuiltWith), so anyone can verify us.
- No database. We don't store which websites were checked. A paid report opens through a signed link that works for 30 days and for one website only.
Data sources
IP registries (RDAP, IPinfo), endoflife.date for support dates, the OSV vulnerability database, Google Safe Browsing, PageSpeed Insights and the Wayback Machine. Public data only: we don't hack anything and don't log in anywhere.
Stack
Next.js on Vercel. A headless Chrome on the server generates the PDF report. There is also a Telegram bot.
How it compares
There are great tools out there, and we use them ourselves. The difference is in what one check covers and what it costs.
| Tool | What one check covers | Price |
|---|---|---|
| Google PageSpeed Insights | Speed, basic SEO and accessibility | Free |
| GTmetrix | Speed and performance | Free; PRO from $4.99/month |
| Sucuri SiteCheck | Malware, blacklists, outdated software | Free; protection plans paid |
| Semrush Site Audit | Deep technical SEO across many pages | From $139/month |
| OLBO Website Checker | 13 areas: hosting, security, email, platform, vulnerabilities, accessibility, GDPR, Google, AI search, speed | Score free; full report €25 once |
Prices as of October 2026.
What we do differently:
- Everything in one place. Speed, security, email protection, accessibility, GDPR and AI search readiness in a single run. Usually that takes four or five different tools.
- One payment, no subscription. The full report is €25 once. You don't have to pay monthly to read one result.
- Written for the owner, not only the developer. Every finding explains what it means for the business, and the fix list is a ready task for your developer.
- We check the new things. Few free tools look at the European Accessibility Act or at whether ChatGPT and Claude can read your site.
To be fair about the limits: our check is automated and approximate. It doesn't replace a deep SEO audit of thousands of pages (that's what Semrush is for) or a full manual accessibility audit.
Honestly about me
I'm not a programmer. I'm a publisher with 23 years of experience. I wrote the code together with an AI assistant, with advice from programmer friends. My part was the product: what to check, how to explain it to a website owner in plain words, and where the line of honesty is.
What it costs
The overall score and the colour of each of the 13 checks are free. The full report with explanations and step-by-step fixes for your developer costs €25. Part of the revenue supports Balabony, our Ukrainian story platform that is accessible to people with disabilities.
Check your website: https://olbo.com.ua/en/website-checker?utm_source=devto
Tell me which check is missing and what is worth improving. Thank you!
Top comments (0)