Essential Eight Self-Assessment
Answer 8 quick questions and get an instant estimate of your cyber maturity level against the ACSC framework - free, no email required.
Take the AssessmentFree Guides
IT Resources for Perth Businesses
Practical guides, checklists, and comparisons - written by our Perth IT team to help you make better technology decisions for your business.
More from Top Tier Computing
Blog
IT tips, guides, and advice for Perth businesses.
IT & Cybersecurity Glossary
Plain-English definitions of the terms we get asked about most.
Case Studies
Real outcomes from real Perth business engagements.
Expertise
The technologies and platforms our team specialises in.
FAQ
Common questions about our IT services, answered.
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Free Tools
AI Readiness Self-Assessment
Answer 8 quick questions and get an instant estimate of how ready your business is to adopt AI tools safely - free, no email required.
Take the AssessmentNIST CSF Self-Assessment
Answer 6 quick questions and get an instant estimate of your alignment tier against the NIST Cybersecurity Framework - free, no email required.
Take the AssessmentManaged IT Self-Assessment
Answer 7 quick questions to see whether managed IT would fix the gaps in your current setup - free, no email required.
Take the AssessmentCyber Insurance Readiness Self-Assessment
Answer 6 quick questions to check your business against the controls insurers now commonly require - free, no email required.
Take the AssessmentEmail Security Checker
Enter your domain to instantly check your SPF, DKIM, and DMARC records - free, no email required.
Check My DomainSoftware End-of-Life Checker
Look up whether your Windows, Server, Exchange, SQL, or Office version is still supported - free, instant results.
Check My SoftwareIT Downtime Cost Calculator
Work out what an outage would actually cost your business - lost revenue, idle wages, and emergency support - free, no email required.
Calculate My CostMicrosoft 365 Licence Waste Calculator
See how much you're paying every month for Microsoft 365 licences nobody's using - free, no email required.
Calculate My WasteDNS Health Checker
Check your domain's A, MX, www, and TTL records for stale settings left behind after a migration - free, instant results.
Check My Domain🔒
Cybersecurity
Cybersecurity Checklist for Perth Small Businesses
A practical checklist covering MFA, backups, endpoint protection, email security, and network controls.
Read ChecklistHow to Protect Your Business from Ransomware
What ransomware is, how it gets in, and the layered controls that actually stop it.
Read GuideWhat an IT Security Audit Covers
A breakdown of what a proper security audit reviews - identity, endpoints, network, backups, email, and policies.
Read GuideCyber Insurance for Perth Businesses
What cyber insurance covers, what it doesn't, and what insurers now require before issuing a policy.
Read Guide☁️
Microsoft 365
Microsoft 365 Security Features You Should Be Using
The built-in security features most Perth businesses have enabled - and the critical ones they haven't.
Read GuideSharePoint vs OneDrive - What's the Difference?
Plain-English guide to when to use SharePoint vs OneDrive for your Perth business.
Read GuideMicrosoft 365 vs Google Workspace
An honest comparison of both platforms for Perth small businesses.
Read ComparisonMicrosoft Intune for Perth Businesses
How to manage all your business devices from the cloud - without a server.
Read Guide🖥️
Managed IT
New Employee IT Onboarding Checklist
Every IT task to complete when a new staff member joins - accounts, devices, access, security.
Get ChecklistHow Much Does Managed IT Cost in Perth?
Realistic 2026 pricing benchmarks and what drives the difference between providers.
Read GuideIn-House IT vs Managed IT
An honest comparison to help Perth business owners decide what's right for their stage of growth.
Read ComparisonTop 10 IT Mistakes Perth Businesses Make
The most common - and most expensive - IT mistakes we see, and how to avoid them.
Read Guide💾
Backup & Recovery
Cloud Backup vs Local Backup
What actually protects you from ransomware, hardware failure, and disaster - and what doesn't.
Read GuideHow to Create a Disaster Recovery Plan
A practical guide covering RTO, RPO, recovery runbooks, and how to actually test your plan.
Read GuideThe 3-2-1 Backup Rule Explained
Three copies, two media types, one offsite - what the 3-2-1 backup rule actually means and how businesses get it wrong.
Read GuideHow to Test Your Business Backup
Having a backup isn't enough - if you've never tested a restore, you don't actually know it works.
Read Guide📊
IT Strategy
IT Budget Guide for Perth Small Businesses
How much to spend on IT support, security, software, and hardware - and how to prioritise.
Read GuideHow to Build a Technology Roadmap
Strategic IT planning for Perth businesses - how to stop reacting and start planning.
Read GuideHow to Choose the Right IT Provider
What to look for, what to avoid, and the questions to ask before signing anything.
Read GuideTechnology Debt: The Hidden Cost of Delaying IT Upgrades
Every deferred upgrade quietly compounds into slower systems, more support tickets, and bigger risk.
Read GuideWant personalised advice for your business?
The guides above cover general best practice. For advice specific to your size, industry, and current setup - book a free IT assessment with our Perth team.