// Free Tools

Free tools that tell you what's actually broken

Most infrastructure problems are invisible until they cost you something. An expired certificate. A DMARC record set to monitor-only. A redirect chain nobody noticed. These tools check for those things and give you the verdict straight away.

No signup. No email wall. Run a check, read the result, fix it yourself — or send it to me and I'll fix it with you.

Tools & Utilities

Diagnostics and calculators. Everything runs free.

Website Health Check Live One scan across DNS, email, your certificate, redirects, robots.txt and your sitemap. Six checks, one report. Email Domain Health Check Live Find out whether someone can send email as your domain. SPF, DKIM and DMARC, checked in one pass. DNS Health Check Live Nameservers, zone record, addresses, MX, TXT and CAA in one pass. Finds the delegation faults that take a whole domain offline. SSL Certificate Checker Live Expiry, issuer, chain and hostname coverage — before your visitors see the warning page. Redirect Chain Checker Live Follow every hop from the first request to the final page. Catches loops, dead ends, deep links dropped on the homepage and www conflicts. Robots.txt Checker Live Read the file a crawler actually sees. Catches sites blocking themselves, rules no crawler applies, and sitemap lines pointing nowhere. XML Sitemap Validator Live Check the XML parses, the URLs belong to your site, and the pages they name still load. Opens a sample of them for real. Docker Compose Checker Live Paste a compose file. Finds exposed databases, containers that can reach the host, data that does not survive a restart, and logs that fill the disk. WordPress Security Check New See what your site tells a stranger — version, usernames, xmlrpc, error output, and the security headers a browser acts on. Passive checks only. Downtime Cost Calculator Live Work out what outages actually cost you per year. Every formula shown, no email required.

Cloud Architecture Self-Assessment Soon Twenty-five questions across the six Well-Architected pillars. Scored per pillar, weakest area first.

Knowledge Base

Write-ups from real systems, with the debugging and the trade-offs left in.

Blog Debugging write-ups from real incidents: Terraform, pipelines, Linux, WordPress and AWS data. Case Studies Systems running in production today, documented end to end. Live Grafana Demo A real monitoring dashboard, not a screenshot. Open it and look around.

Hardening Guides Soon Step-by-step checklists for VPS, Docker, WordPress and AWS IAM.

FAQ How engagements run, what you get at handover, and how to verify every credential.

Downloads

Checklists and templates you can take straight into your own environment.

Sample Monitoring Handover Document The documentation standard you receive at the end of an engagement. Open it before you commit to anything.

VPS Hardening Checklist Soon The firewall, SSH, ModSecurity and update steps I run on every server I touch.

Docker Compose Production Checklist Soon Restart policies, health checks, log rotation and the defaults that burn people in production.

AWS IAM Least-Privilege Templates Soon Starting policies for common roles, written to be narrowed rather than widened.

Found something broken?

Send me the result. I'll tell you what it takes to fix it, and whether it's worth paying anyone to do — including me.

Send me a message ↓

Prefer to talk? Book a free call ↗ · Or hire me on Upwork ↗ · Typical reply within one business day.