Altitude IT-supplied
Free Business Email Security Check
Check your business domain's email security settings and identify potential issues with email authentication.
Free Business IT Tools
Check your technology. Understand the results.
Run free security checks, explore useful business IT tools and find practical guidance to help you make better decisions.
Free to use. No account or passwords needed for the IT Club domain check.
Free tools and guidance
Start with what you need to know
The IT Club check is a useful first step. Other resources are clearly labelled so you know who provides them.
Featured email security tool
Check Your Email Security
IT Club · Free review
Email Reputation Watch
Ask IT Club to review public email-reputation signals for your business domain. No mailbox access, no scare tactics and no monitoring until we have reviewed your request and confirmed the next steps.
01 · Hosted by IT Club
Security and domain checks
Domain Security Checker
Open the Domain Security CheckerSee the public signals behind your business email.
Check MX, SPF, DKIM, DMARC and DNSSEC without passwords, mailbox access or an account. It is a point-in-time view, not a certificate or a substitute for your provider's advice.
Public records onlyFree to use
Want the context first? Read the DMARC small-business checklist.
External resource
Have I Been Pwned
Check an email address against known breaches. Never enter a password to test it.
External resource
VirusTotal
Get a second opinion on a link, file, domain or IP address before acting.
02 · Curated resources
Email and Microsoft 365
External resource
MXToolbox
Look up MX, DNS and common email-delivery signals when you need more detail.
External resource
Microsoft Secure Score
Review security recommendations in a Microsoft 365 tenant you administer.
03 · Curated resources
Website security
External resource
SecurityHeaders
Inspect the HTTP security headers returned by a public website.
External resource
SSL Labs
Test a website's public TLS configuration and understand the result before making changes.
04 · Curated resources
Cyber security guidance
External resource
NCSC Cyber Essentials guidance
Read the National Cyber Security Centre's overview of the Cyber Essentials controls.
External resource
Ransomware.live
Follow reported ransomware activity as context for resilience conversations.
Technology Intelligence
Practical explainers and analysis to add context before a technology decision.
Explore Technology IntelligenceNeed a plain-English view?
Ask the IT Club Advisor about a result, a concern or what to check next.
Ask the IT Club Advisor