The Red Bridge Cyber Blog

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Practical guides for Australian business owners.

Plain-language guides on website security, email deliverability, SEO, and AI search visibility - written for non-technical business owners.

All Articles

52 articles
Security11 min read

Business continuity for small business: keeping trading when something breaks

A business continuity plan for a small business is a few pages, not a binder. What to protect, how to test your backups, and how to get a second way online.

2026-10-06
Speed7 min read

Free website speed test tools (and how to read them)

Test your site speed free in 2 minutes with PageSpeed Insights, GTmetrix and WebPageTest - and learn the 3 numbers that actually matter.

2026-09-11
Email10 min read

Why Are My Emails Going to Spam? SPF, DKIM and DMARC

Emails land in spam when SPF, DKIM and DMARC are missing or broken. In our June 2026 baseline, only 43% of Australian small-business domains enforce DMARC. Here’s the fix order.

2026-09-09
Speed9 min read

Why is your small business website slow?

The plain-English layer you read after a speed test: the 4 real reasons a small-business site is slow, which to fix yourself, and which to hand over.

2026-09-08
Domain5 min read

DNS records explained simply: a plain-English guide for small business

A plain-English tour of the DNS records that matter to an Australian small business: A, MX, SPF, DMARC, CAA and DNSSEC. 98% of SMB domains run no DNSSEC.

2026-09-07
Domain5 min read

Do you actually need DNSSEC? A 5-minute decision and setup guide for Australian small businesses

DNSSEC is off by default on virtually every Australian small-business domain. Who actually needs it, how to decide, and the 5-minute registrar steps to switch it on.

2026-09-04
Visibility3 min read

What is on-page SEO?

On-page SEO is the set of changes you make to a page itself (title, headings, alt text, internal links, body, meta description) that help a search engine understand it. The half of SEO you control.

2026-09-02
Domain5 min read

Setting up CAA on Cloudflare: the 2-minute job almost nobody has done

Only 1 in 20 Australian small-business domains publishes a CAA record. On Cloudflare, one record with your email closes the loop - Cloudflare handles the rest.

2026-08-31
Email6 min read

How to read an SPF check: every part of the result, explained

You ran an SPF check and got a wall of mechanisms, includes and qualifiers. What each part of the record means, the 3 results that matter, and the 2 failures that silently break delivery.

2026-08-28