Replatform Joomla to Astro
There is no Joomla deadline. There is a running cost, and it rises every year.
Joomla 5 upgrades to Joomla 6 in place, and Joomla has published support dates running to 2029. Nothing forces a decision here, and that is the honest starting point. What a Joomla site actually costs is the platform plus every extension bolted to it — each maintained by somebody else, on their schedule, each a separate way into the site and a separate thing that can block the next upgrade. We re-platform the front end to a static Astro build on Cloudflare: the same content, the same URLs, served from the edge. Editors can keep Joomla and author exactly as they do now, or the platform can be retired altogether.
What actually changes
Your design is carried across exactly as it is. A redesign is a separate project, quoted separately, and only if you want one.
Website replatforming
Off Joomla. Onto Astro, served from Cloudflare's edge.
An ageing content management system costs you three ways at once: maintenance and licences you keep paying, a break-in risk you carry, and slow pages that lose the visitors your ads and search already paid for. Replatforming removes all three, keeps your design, content and addresses, and leaves a site ready for what comes next.
Why replatformWhat staying on Joomla costs you
The valueWhat replatforming returns
Abandoned extensions still running
The extension ecosystem is small and thinning. Extensions are abandoned quietly, and an abandoned extension keeps running on your server with full reach long after anyone is fixing it.
Attack surface removed
No extensions. No database. No code running on request. The category of exposure disappears instead of being patched.
Upgrades that break extensions
Every major Joomla version has broken extension compatibility. Upgrading has meant replacing, re-buying or rebuilding.
Nothing to replace or re-buy
Content, design and web addresses come across. The major-version break stops being your problem.
Subscriptions, and a shrinking talent pool
Paid extension subscriptions, a server to keep patched, and fewer people working with Joomla each year. That is a cost and a hiring risk at the same time.
Maintenance cost removed
No subscriptions. No server to patch. A stack any modern web developer can pick up, on static hosting that does not climb with traffic.
Speed depends on server load
Pages are assembled on request through the template and extension layer. What the visitor gets depends on how loaded the server is when they arrive.
Measurably faster pages
Pages are pre-built and served from the edge. At least a 20 per cent improvement in measured performance where there is room for it, measured on the same test.
No record, and slow recovery
Changes made in the Joomla administrator leave no record of who changed what, and recovery is a restore from a backup of unknown age.
Versioned, with one-step rollback
Every change versioned, reviewed and tested before release. Rollback to any previous version in one step. Recovery in minutes.
AI cannot reach your content
Your content is locked in a database behind a login, and template output gives an agent nothing stable to read.
AI and agentic foundations
Content becomes machine-readable and deployment becomes something software can run. Module 01 of the roadmap below, and the prerequisite for every module after it.
Our own site runs on it. Every page sits in Google’s “good” band for speed, on mobile and desktop, measured 17 September 2026.
How we replatform
01
Discovery
We map the current site, its content, integrations and traffic, and agree what must be preserved.
02
Plan
A written migration plan: scope, page-by-page mapping, redirects, risks, and the measured baseline.
03
Approval
You approve the plan and the agreed targets. No build starts without it.
04
Replatform
Build, test and launch, then re-run the same tests and hand you the before-and-after.
Typical outcome: at least a 20 per cent improvement in measured performance where the current measurement leaves room for it, and the plugin and theme attack surface removed entirely. Measured on the same test, before and after.
Where this sits — the nine-module Growth Engine
- 01Websites
- 02Discovery
- 03Digital funnel
- 04Market sizing
- 05Data & KPIs
- 06Digital voice
- 07Automation & Integration
- 08AI
- 09SAOS
Replatforming is module 01, deliberately first: a fast, secure, agent-readable website is the asset every later module reads from and acts on. Each module stands alone, and there is no obligation to take the next.
What Replatform Joomla to Astro delivers
Editors can keep Joomla
Joomla 4 and later expose a core web services API covering articles, categories, fields and menus. Astro reads that and builds the pages, so the authoring your team already knows is untouched.
Faithful re-platform
Content, structure, URLs and redirects carried across, so rankings and inbound links survive the cutover.
The extension list stops growing
Every third-party extension is a separate maintainer, a separate update and a separate way in. A static build has none of them in the request path, so there is nothing to patch on a Tuesday.
The page arrives faster
A visitor who waits is a visitor who leaves. A page built once and served from the edge starts rendering immediately, with no PHP execution and no database query standing between the click and the content.
We name what is rebuilt
Forms, member logins, search, galleries and anything an extension renders at request time are rebuilt, not converted. You get that list before you commit, not after.
Primary tools
Secondary tools
One data layer · measured & owned
Every service creates data that is captured, measured and owned.
Replatform Joomla to Astro doesn’t just run. It generates signal. We land that data in one warehouse and turn it into live KPIs tied to a named owner, so performance is attributable and acted on, never trapped inside a single tool.
Data warehouse
KPIs, dashboards & apps
Platform-agnostic: we connect what you already use and add a warehouse only where it earns its place.
Version support — the published end-of-life dates
What is still supported, and what has already stopped.
Unsupported. No fixes of any kind since end of life.
End of life: 31 December 2014
Unsupported by the project. Continued security cover after this date is a paid third-party arrangement, not part of Joomla.
End of life: 17 August 2023
Unsupported. Regular bug fixes ended in October 2024 and security fixes ended a year later.
End of life: 17 October 2025
Released 17 October 2023. Regular bug-fix support ends 13 October 2026; security fixes continue to the date shown.
End of life: 12 October 2027
Released 14 October 2025. Current. Regular bug-fix support ends 17 October 2028; security fixes continue to the date shown.
End of life: 16 October 2029
Dates are taken from Joomla's own published sources — the project roadmap at developer.joomla.org for Joomla 5 and 6, and the Joomla! CMS versions chart on docs.joomla.org for the earlier releases. Read them as context, not as a threat: Joomla 5 upgrades to Joomla 6 in place, and the published dates run to 2029. Nothing on this page depends on a deadline.
Capability Maturity — we walk you up the five levels
Operated at Level 4 · Quantitatively Managed — measured, predictable and owned. We track this rank and raise it over time. See the five levels →
Why this matters
Functional value, value-stream value, and why it can't be ignored.
Re-platforms a Joomla site to a static Astro front end on Cloudflare — either headless, with Joomla kept as the editing system and read through its core web services API, or fully extracted so the platform is retired. Content, structure, URLs and redirects are carried across.
It creates a publishing path with no server in it: every page is built once and served from the edge, so the page arrives before a server-rendered one has finished querying the database. It enhances what the business already owns — the content model, the URLs and the search positions come across intact. And it protects the site by removing the surface that has to be watched: no PHP process in the request path, no per-request database, and no third-party extension facing the internet.
There is no date on this one, and that is exactly why it goes unexamined. Joomla 5 upgrades to Joomla 6 in place, so nothing arrives to force the decision, and the site keeps serving. What happens instead is slower and harder to see on a budget line. Every extension on the site is maintained by someone else, and they drop out one at a time — a form builder, a gallery, a members area — each one leaving a choice between running code nobody is fixing and paying to replace it. Joomla's own history shows where that ends: moving from Joomla 3 to Joomla 4 was a migration rather than a one-click upgrade, and extensions whose authors did not carry them forward had to be rebuilt or abandoned. Support for the project itself is volunteer-run, and when Joomla 3 reached the end of it in August 2023, continued security cover became a paid arrangement with a third party rather than part of the platform. Meanwhile the server stays in the request path, so PHP versions, database patching and hosting are a standing bill whether the site changes or not. None of this is urgent in any single month. The effect is cumulative: each upgrade costs more than the last, the list of things nobody will touch gets longer, and the day the site becomes cheaper to rebuild than to maintain arrives without anyone having decided it should.
How we select technology
We choose technology last, for the outcomes it has to earn.
Never tech for its own sake. A tool joins the stack only where it measurably protects value, cuts cost or speeds delivery. It must fit a designed system, be owned where it counts, and be measurable from day one. How we select technology →
Speed
Modern, edge-served stacks are sub-second. Slow surfaces cost conversion and SEO every single day.
Cost
Cut licence, hosting and per-task SaaS fees. Pay for capability, not lock-in or idle enterprise tiers.
Security
Flat, edge architecture with almost nothing left to attack: fewer moving parts, smaller surface.
Ownership & no lock-in
Composable and self-hosted where it counts, so you own the system, not rent someone else’s.
Measurability
Clean data and KPIs built in. You cannot improve, automate or apply AI to what you cannot measure.
Fit to process
The right tool for a designed system, selected against process readiness, so it amplifies, not adds friction.
How we deliver · DMAIC
Every Replatform Joomla to Astro engagement runs on DMAIC.
Define the goal and its value, measure the baseline, analyse the real constraint, improve with a controlled build, then control the gains, so results are predictable, repeatable and defensible, not down to luck.
Agree the goal, value, budget & timescale up front.
Baseline the KPIs above: current state, not guesswork.
Diagnose the real constraint and the solution needed.
Build the chosen solution; prove the uplift.
Lock in the gains; monitor and sustain them.
FAQ
Common questions
What is Replatform Joomla to Astro?
Joomla 5 upgrades to Joomla 6 in place, and Joomla has published support dates running to 2029. Nothing forces a decision here, and that is the honest starting point. What a Joomla site actually costs is the platform plus every extension bolted to it — each maintained by somebody else, on their schedule, each a separate way into the site and a separate thing that can block the next upgrade. We re-platform the front end to a static Astro build on Cloudflare: the same content, the same URLs, served from the edge. Editors can keep Joomla and author exactly as they do now, or the platform can be retired altogether.
Why does Replatform Joomla to Astro matter?
There is no date on this one, and that is exactly why it goes unexamined. Joomla 5 upgrades to Joomla 6 in place, so nothing arrives to force the decision, and the site keeps serving. What happens instead is slower and harder to see on a budget line. Every extension on the site is maintained by someone else, and they drop out one at a time — a form builder, a gallery, a members area — each one leaving a choice between running code nobody is fixing and paying to replace it. Joomla's own history shows where that ends: moving from Joomla 3 to Joomla 4 was a migration rather than a one-click upgrade, and extensions whose authors did not carry them forward had to be rebuilt or abandoned. Support for the project itself is volunteer-run, and when Joomla 3 reached the end of it in August 2023, continued security cover became a paid arrangement with a third party rather than part of the platform. Meanwhile the server stays in the request path, so PHP versions, database patching and hosting are a standing bill whether the site changes or not. None of this is urgent in any single month. The effect is cumulative: each upgrade costs more than the last, the list of things nobody will touch gets longer, and the day the site becomes cheaper to rebuild than to maintain arrives without anyone having decided it should.
How does Sentry deliver Replatform Joomla to Astro?
Re-platforms a Joomla site to a static Astro front end on Cloudflare — either headless, with Joomla kept as the editing system and read through its core web services API, or fully extracted so the platform is retired. Content, structure, URLs and redirects are carried across.
What do I get with Replatform Joomla to Astro?
Editors can keep Joomla: Joomla 4 and later expose a core web services API covering articles, categories, fields and menus. Astro reads that and builds the pages, so the authoring your team already knows is untouched. Faithful re-platform: Content, structure, URLs and redirects carried across, so rankings and inbound links survive the cutover. The extension list stops growing: Every third-party extension is a separate maintainer, a separate update and a separate way in. A static build has none of them in the request path, so there is nothing to patch on a Tuesday. The page arrives faster: A visitor who waits is a visitor who leaves. A page built once and served from the edge starts rendering immediately, with no PHP execution and no database query standing between the click and the content. We name what is rebuilt: Forms, member logins, search, galleries and anything an extension renders at request time are rebuilt, not converted. You get that list before you commit, not after.
Free migration quote
Get a quote for your Joomla to Astro migration
Tell us where your site is and when you need it moved. A person reviews every request and replies within one working day. You and our team both get a copy by email.
Start here · the free first step
Replatform Joomla to Astro starts the same way every engagement does: with Discovery.
Two distinct moves. A free, no-obligation Discovery Session to frame your biggest measurable constraint and what it may be worth, with a one-page written summary afterwards. Then, where the evidence warrants it, the paid Discovery & Blueprint: 14 written outputs (value model, roadmap and business case) before a pound of delivery is committed.
Engaged alone or as one engine