Astro vs WordPress for Small Business: An Honest Comparison

Why This Comparison Keeps Getting Written Badly

The honest version of Astro vs WordPress isn’t a war between two platforms. It’s a question about what your website is for. WordPress was designed for blogs and grew into a Swiss Army knife — it can run a forum, a membership site, an online course, a magazine, and a thousand-product ecommerce store. Astro was designed for content-driven sites that serve fast HTML and don’t change shape every day. They’re not the same product. Most of the noise on the internet is people pretending they are.

For about 80% of UK small business websites, the right answer is Astro. For the remaining 20%, it’s still WordPress, and I’ll tell anyone who asks me which 20% they’re in. The rest of this piece is the working underneath that conclusion.

Speed: The Gap Is Real and It Matters

Every WordPress page load wakes up a database, executes PHP, runs your plugins, and renders the HTML on the fly. Even on managed hosting with a caching plugin doing its best, a typical small-business WordPress site loads in three to five seconds on a mobile phone. Add a page builder like Elementor or Divi and you can push that closer to seven.

An Astro site is the opposite shape. Pages are built into plain HTML files before anyone visits. The server’s job is to send those files when asked. A typical Astro small-business page loads in under one second from a UK edge node, regardless of how many other people are visiting at the same time.

This isn’t a vanity metric. Google has been ranking sites on Core Web Vitals — Largest Contentful Paint, Cumulative Layout Shift, Interaction to Next Paint — for years now. A site that fails Core Web Vitals on mobile is ranked lower than competitors that pass them. The speed gap is a ranking gap, and the ranking gap is a leads gap.

I migrated this site from Wix to Astro and watched the PageSpeed score go from 69 to 99 without changing a single word of content. The technology underneath the site is what shifted. The full case study covers the migration in detail.

Cost: A Five-Year View

The headline cost of WordPress hosting looks reasonable — £10-15 a month for shared hosting, £25-40 for managed hosting. The reality is layered. Premium plugins (an SEO plugin, a caching plugin, a security plugin, a backup plugin, a page builder) typically add £150-300 a year. Themes are £40-80, often charged annually now. Then there’s the developer time — an hour here and there to fix plugin conflicts, update PHP versions, restore the site after a security incident.

A five-year total cost of ownership for a typical UK small business WordPress site runs £1,500 to £3,500. The biggest single line item is usually developer time after the first year, not the hosting bill.

An Astro site on Netlify costs £0 a month on the free tier for any traffic level most small businesses ever approach. No plugins. No themes that renew. No emergency fixes when a plugin update conflicts with PHP 8.4. The build cost is paid once — typically £995 to £1,500 for a small-business site — and the running cost is essentially nothing.

The pay-monthly route (£49/month all-in) bundles the build and hosting together with no upfront cost. It’s the same total spend as a managed WordPress host, except you get the speed gains, the ownership, and somebody who answers the phone.

Security: The Attack Surface Argument

WordPress powers roughly 43% of the internet. That market share makes it the most attractive target for automated attacks — every vulnerability scanner in the world is constantly probing WordPress sites for known exploits. The platform itself is reasonably secure. The plugins are where the problems usually live.

The average WordPress site runs 15-25 plugins. Each plugin is code written by a different developer with different security practices and different update schedules. One unpatched plugin, one delayed update after a disclosed vulnerability, and the site is compromised. The compromise is usually invisible for weeks — a backdoor inserted into a theme file, a redirect to a casino site, a phishing page hidden in /wp-content/uploads/.

An Astro site has no admin panel to brute-force, no database to inject SQL into, no plugins with their own security records. The entire attack surface that makes WordPress vulnerable simply isn’t present in the architecture. I’ve yet to see a hacked Astro site, and I’d genuinely struggle to explain how one would happen on a typical small-business build.

This isn’t an argument that WordPress is dangerous to run. Well-maintained WordPress sites with reputable plugins and active updates are fine. The argument is that the maintenance is the thing — and small business owners didn’t start a business to maintain a CMS.

Maintenance: The Time You’re Not Counting

The hidden cost of WordPress isn’t the hosting bill. It’s the hour every month spent on updates, the half-day every year when something breaks, the four-hour emergency when PHP 8.3 broke compatibility with your form plugin and the contact form silently stopped working for three weeks. Most WordPress site owners aren’t logging these hours, which is why the time cost stays invisible.

I ran the numbers on my own pre-Astro setup. The site was hosted on managed WordPress with a respectable theme and twelve well-chosen plugins. Across a typical year, I was spending 25-40 hours on maintenance — updates that conflicted, security patches that needed verifying, the occasional plugin author who’d abandoned the codebase and forced a hunt for a replacement. At any reasonable hourly cost, that’s the equivalent of another full annual hosting bill.

An Astro site needs almost no maintenance. The platform is static files; there’s nothing to update on a regular cycle. I push a code change when a client asks for one and the site rebuilds and deploys in two minutes. That’s the only maintenance pattern.

SEO: Where the Architecture Helps and Where It Doesn’t

WordPress has Yoast SEO and Rank Math — strong SEO plugins that handle most of what a small business needs. Astro has no SEO plugin because the work is done at the code level: meta tags, structured data, sitemap, canonical URLs, all controlled directly. The two platforms are roughly equal on the “can you implement modern SEO?” question — both can, in the hands of someone who knows what they’re doing.

Where Astro pulls ahead is the architectural side of SEO. Core Web Vitals are an architectural property of a fast site, not a feature you bolt on. Mobile-first indexing rewards mobile speed, which is exactly where Astro’s lead is largest. Crawlers prefer pages that render clean HTML on first request — Astro ships that, WordPress ships rendered HTML after the database has produced it.

The other architectural advantage is canonical URL handling. WordPress sometimes serves the same content at multiple URLs (with and without trailing slash, with and without .html, with and without category prefixes) and the authority gets split. Astro doesn’t suffer from this by default, although it has its own configuration traps if you’re not careful — I’ve written about the four-layer Astro SEO trap where my own site lost a hundred indexed pages to a single setting.

The net is that Astro makes the structural SEO easy and WordPress makes it possible. The plugin layer adds a usability advantage for non-technical owners managing their own SEO; the architecture adds a performance advantage for technical owners or developers who understand what’s being measured.

The Editing Experience: An Honest Trade-Off

This is the part of the comparison most platform-loyalty articles dodge.

WordPress has a visual editor in the browser. You click a paragraph, you type, you hit save, the change is live. For non-technical small business owners who want to update their site once a week, this is a real benefit. It’s how WordPress kept market share against everything that came after.

Astro doesn’t have that, by default. Content lives in Markdown files or in a code repository. Updates happen by editing a file and pushing the change, which is what developers do. Most of my clients don’t want to do that — they email me changes and I make them. The Pay Monthly £49/month service includes that — content updates are part of the package.

If self-editing genuinely matters to you, Astro can be paired with a headless CMS (Decap, Sanity, Storyblok) that gives you a visual editor without giving up the ownership and speed. It’s an extra layer of setup but the option exists. For most small business owners, the right answer is: “I email changes, the developer makes them, the site stays fast and reliable, and I get my evenings back.”

When WordPress Is Still the Right Tool

I’ll name them straight, because anyone telling you Astro is always the right answer hasn’t worked enough WordPress builds.

WordPress is the right choice when:

• You need a real member area with user accounts, profile pages, gated content, course delivery
• You run a forum or a community with user-generated content
• You self-edit daily and refuse to involve a developer
• You have a thousand-product ecommerce store with complex inventory, fulfilment, and stock workflows (though for this case, Shopify is usually a better answer than WordPress + WooCommerce)
• You depend on a specific WordPress plugin that has no equivalent elsewhere
• You publish multiple long-form pieces a week and need the editorial workflow

For everything else — service businesses, tradespeople, consultancies, B2B suppliers, fabricators, small portfolios, brochure sites, marketing sites for software companies, agency sites, professional services — Astro is the better architecture. That’s most of the UK small business web.

How to Decide

Ask three questions in order.

One: Does the site need anything dynamic beyond a contact form? (Member areas, user accounts, search across user-generated content, a checkout for many products.) If yes, stay on WordPress (or move to Shopify for ecommerce). If no, continue.

Two: How often does the site genuinely need self-editing? If it’s a daily activity by someone who refuses to involve a developer, WordPress wins on the editing experience. If it’s monthly or less, Astro wins on every other axis.

Three: What’s the five-year cost picture? If you’re going to pay £1,500-3,500 for WordPress maintenance over five years, the Astro route at £0/month plus a one-time build is a measurable saving — and you get the speed, the security, and the ownership as a side effect.

If two of the three questions point to Astro, the migration is usually worth it. If two of the three point to WordPress, stay where you are. I’ll give you the same answer in five minutes on a phone call if you’d rather check.

The Move, If You Decide to Make It

The WordPress to Astro migration page covers the full process — what gets transferred, how SEO rankings are protected, what hosting changes, what the timeline looks like. The short version: your WordPress site stays live throughout, the new Astro site gets built on a staging URL, and the switch happens only when you’ve reviewed and approved everything.

The hosting after the move runs on Netlify and costs nothing on the free tier for the traffic levels a typical UK small business sees. The site loads faster. The ranking improves over the following months. The maintenance disappears.

If you’ve read this far and you’re still not sure which side of the line your business sits on, send me the URL of what you have now. I’ll tell you straight whether a migration makes sense for your situation. The answer is sometimes “stay where you are.” It’s more interesting when it isn’t.

Related: So What Is an Astro Website, Anyway? · Escaping WordPress and Elementor: From 69 to 99 PageSpeed with Astro · Astro Hosting UK · WordPress to Astro Migration