Modernising Legacy Websites Without Breaking the Business
Rebuilding or re-platforming a website is one of the most consequential digital decisions an organisation can make — and one of the most frequently approached without adequate care. The risks are real: search rankings built over years can be lost overnight, content carefully curated by your team can vanish, and an audience that relied on familiar navigation can be left confused and disengaged.
We’ve helped many organisations navigate this challenge successfully. Here’s how we think about it.
The Stakes Are Higher Than You Think
When an organisation decides it’s time for a new website, the focus naturally gravitates towards the new: the refreshed brand, the improved user experience, the modern technology stack. What often doesn’t get enough attention is the existing asset being replaced — a site that may have years of SEO authority, established content structures, trusted URLs, and an audience that knows how to find what they need.
A poorly managed migration can undo years of search engine optimisation work in a matter of days. A content governance process that worked perfectly in the old CMS may need significant rethinking. Accessibility standards that were hard-won may need to be re-verified from scratch. None of this is a reason not to modernise. It is a reason to do it thoughtfully.
Start with What You Have
Before a single line of new code is written, we recommend a comprehensive audit of the existing site. What are your highest-traffic pages? Which URLs have the strongest backlink profiles? What content genuinely serves your users, and what can be retired? Where are the accessibility gaps?
This audit isn’t just housekeeping — it’s intelligence. It tells you what needs to be preserved, what needs to be improved, and what can be left behind. It becomes the foundation of your content migration plan and your SEO strategy
SEO: The Non-Negotiable
Our standard approach involves mapping every significant URL from the old site to its equivalent on the new one, implementing comprehensive 301 redirects, and monitoring search performance closely in the weeks and months following launch. We also work to preserve technical SEO foundations — structured data, canonical tags, sitemap architecture — in the new build.
With the right preparation, a website migration doesn’t have to mean an SEO dip. Done well, it can actually be an opportunity to improve your search performance by cleaning up historical issues and building a stronger technical foundation.
Governance and Content Migration
Content governance is the unsung hero of a successful website modernisation. How does content get created, reviewed, approved, and published? Who owns what? How are outdated pages managed? These questions need answers before you choose a CMS, not after.
We work with our clients to design content governance frameworks that fit their organisation. We then ensure the chosen CMS supports those workflows natively, rather than forcing your team to work around the system. For content migration, we use a combination of automated tools and manual curation — automation handles volume; human judgement ensures quality.
Keeping the Lights On
One of the most common concerns we hear is: “How do we keep the existing site running effectively while building the new one?” Our approach is to treat the existing site as a live, cared-for asset throughout the migration project. We plan go-live carefully, typically scheduling it for a lower-traffic period, and we maintain a clear rollback plan in case anything unexpected arises.
The goal is a transition that your audience barely notices — except, of course, that the new site is better in every way that matters. If your website is overdue for a refresh, let’s have a conversation about what a safe, well-managed modernisation could look like for you.