BrisTechTonic is a Bristol SEO agency offering website migrations that gets UK businesses found on Google, the local map pack and the AI assistants they now ask, like ChatGPT and Perplexity. A website migration, a replatform, redesign or domain move, is the single most common way a business loses its search traffic overnight. We plan the URL mapping, redirects and parity, and monitor the transition, so you keep the rankings and traffic you already have.
Migrations break SEO because URLs change, redirects are missed, content is dropped and signals are lost, often invisibly until traffic falls weeks later. The damage is preventable with disciplined mapping, a complete redirect strategy, content parity and close monitoring through launch. We have done it before, and we treat it as a controlled process, not a hope.
What does website migrations put on your desk?
What does website migrations include?
Pre-migration URL and value mapping
Before a single page moves, we list every web address and rank it by the rankings, links and traffic it holds. That list is the reference the whole move is checked against, so nothing valuable is dropped by accident or forgotten.
Explore →Redirect strategy and mapping
A complete plan that points each old web address to its true new equivalent and keeps the reputation behind it. We treat this as a proper job in its own right, avoiding the shortcuts and dead ends that quietly leak away the very value a move is meant to protect.
Explore →Content and metadata parity
The new site has to say what the old one said wherever that earned its rankings. We check the words on the page, the titles, the descriptions and the links to make sure nothing is missing, so a redesign does not quietly delete the pages and text that were doing the work.
Explore →Replatform and CMS moves
Moving to a new website system changes how web addresses, page designs and page loading behave, and each of those can break how Google reads the site. We handle the SEO side of the move in step with the build team so the structure and Google's ability to read the site survive the switch.
Explore →Performance on the new build
A new website system is a fresh chance to get loading speed right, or to make it worse. We keep a firm eye on page speed and how the pages load on the new build so speed and steadiness are not sacrificed to a heavier design.
Explore →Post-launch monitoring and recovery
The first weeks after going live are where problems surface. We keep a close watch on what Google has listed, your rankings, any errors, and whether old addresses point to the right new ones, and if you have already moved and lost traffic, we work out what was missed and recover what can be recovered.
Explore →Want website migrations handled by the people who actually do the work?
Book a call →How does website migrations work, step by step?
Scope the migration and its risk
We establish what is actually changing, URLs, domain, platform or design, and where the exposure sits. That tells us how much of the traffic base is in play and what has to be protected first.
Map every URL before anything moves
We build the full list of current web addresses with their rankings, links and value, and give each one a home on the new site. This list becomes the single point of truth for the whole move.
Design the redirect and parity plan
We write the plan that points every old web address to its correct new one, plus a checklist covering content, page details and links, so the new build is checked against the old one rather than assumed to match.
QA on staging before launch
We check the redirected addresses, that no content is missing, and that Google can find and read everything, all on the test version of the site while there is still time to fix things, not after they are live and costing you traffic.
Support the cutover
At launch we check the old addresses are correctly forwarding, that Google can find and list the new site, and that nothing important was lost in the switch, working alongside your development team through go-live.
Monitor and correct through the risky weeks
We keep a close eye on what Google has listed, your rankings and any errors after launch and act fast on anything that slips, so a small problem is fixed in days rather than found in a later report.
Real people doing the work, and putting their name to it.
You deal with our small, experienced Bristol team directly, from the first call to every monthly report.
Meet the team →Are we the right fit?
If Google cannot crawl it, nothing else you do counts.
These are industry figures, not our own results, and we do not invent numbers. Technical work rarely shows on the page, but it is the ceiling everything else runs into. No outcome is ever guaranteed.
“The guys at BrisTechTonic are great - friendly and always helpful. I would highly recommend!”
Allanah Fenwick
Website moves are unforgiving, so they are no place for someone to learn on the job. Every list, forwarding plan and check on your move is done by experienced people with years of combined agency work between us. We treat a move as a careful, documented handover, because the failures we have seen and fixed all trace back to the same avoidable gaps: old addresses that were never forwarded, content that got dropped, and links that were lost.
Meet the team →Website migrations, with the numbers.
Real people on your account, not a faceless agency.
You work directly with the senior people who do the work, a small Bristol team you will actually get to know, not a call centre or an account manager relaying messages.
Meet the team →
What clients say about working with us.
“I've had the pleasure of working with Chris on several SEO projects for my websites in the health field. He was definitely been able to demystify things so that I felt able to make decisions with him and feel confident they were the right ones. For a non-techie, that is worth gold! I look forward to working with Chris again and warmly recommend him to anyone who - like me - is unsure about all things SEO.”
“I was recommended by my branding partner to use Chris and his team last year. I can’t recommend them highly enough. They are very responsive , easy to communicate with and great at translating techy stuff when needed. They are now an essential part of my business model”
“We've been working closely with Chris, Hannah and the team for over 12 months now. As a small company with ambitious growth plans, it was incredibly important that we made the right choice on who to trust with our SEO. 18 months later, we're totally thrilled with our experience so far and our growing online presence within our market. We'd happily recommend BTT and their services to other SMEs. Drop them an enquiry!”
Thinking of switching from another agency?
Moving your website migrations to us is more straightforward than staying somewhere that is not working. You keep everything you already own, we pick up without a gap, and we can run the whole thing for you or work alongside your team and your developers, whatever suits.
A free look first
We review what your current agency has done, tell you straight what is worth keeping and where the quick wins are. No obligation to move.
You keep what's yours
Your site, content, Google Business Profile and analytics stay in your name. We work with what you already have; nothing is held hostage.
A clean handover
We map the work across, set a plain-English baseline in the first few weeks, and carry on from there. No starting from zero, no quiet ranking gap.
Three-month minimum, then rolling monthly on 30 days’ notice. No long lock-in, no exit fees.
How much does website migrations cost?
All + VAT · 3-month minimum, then 30-day rolling| What's included | Lite £299 + VAT / month | Max Most chosen £449 + VAT / month | XL £849 + VAT / month | Custom Contact us |
|---|---|---|---|---|
| Technical & on-page SEO | ✓ | ✓ | ✓ | ✓ |
| AEO / AI-search layer (found in ChatGPT, AI Overviews) | ✓ | ✓ | ✓ | ✓ |
| Local map-pack optimisation | ✓ | ✓ | ✓ | ✓ |
| Page creation | ✓ | ✓ | ✓ | ✓ |
| Blog posts / month | Add-on | Add-on | 2 | Tailored |
| AI Authority building | — | — | ✓ | ✓ |
| Plain-English monthly report | ✓ | ✓ | ✓ | ✓ |
| Best for | Getting the foundations right | Competing on your key terms | Going after it hard, incl. AI authority | Shaped around your goals |
Before you get in touch.
Will we lose rankings when we migrate?
Not if it is planned properly. Losses come from missed redirects, dropped content and lost signals, all of which disciplined mapping and QA prevent.
When should you be involved?
Before the build, ideally. The cheapest time to protect your traffic is at the planning stage, not after launch when the damage is done.
What kinds of migration do you handle?
Replatforms, redesigns, domain changes, HTTP to HTTPS, and site consolidations. The principles are the same: map, redirect, verify, monitor.
We have already migrated and lost traffic. Can you help?
Yes. We can diagnose what was missed, recover the redirects and signals, and claw back what is recoverable.
How far in advance should you be involved?
Before the build is even planned, ideally. The list of web addresses and the forwarding plan are cheapest and safest to produce while the new site is still being designed, not bolted on after launch when the damage already shows in your figures.
Can you work alongside our existing development or design agency?
Yes. We own the SEO side of the move, the listing, the forwarding, checking nothing is missing and keeping watch, and hand the developers a clear brief to build against. We are used to fitting into a build team rather than replacing one.
What happens if traffic still drops after launch?
That is exactly what the after-launch monitoring is for. We watch what Google has listed and your rankings closely through the first weeks so a slip is caught and put right in days. A drop found early is usually a forwarding or missing-content problem we can fix quickly.
Do you handle domain changes and site consolidations, not just replatforms?
Yes. Switching website system, redesigns, domain changes, moving to a secure (https) address, and merging several sites into one all follow the same routine: list every web address, point each old one to its correct new home, check nothing is missing, then keep watch. The situation changes, the method does not.
How long does a migration engagement run?
It depends on the size and complexity of the site, but the shape is consistent: listing and planning before the build, checks on the test site, support through go-live, then close monitoring for the weeks that follow launch. The riskiest window is the first few weeks live, so we stay on it through that period.
Do you work with our development or build team?
Yes, and on a website move that is usually essential. We own the SEO side, the list of web addresses and their value, the forwarding plan, and checking no content or detail is missing, and we work in step with whoever is building the new site, in-house or an agency, so the structure and Google's ability to read the site survive the switch. Where a decision sits with your developers, we brief it clearly rather than assume it is ours to make.
Read the full breakdown of website migrations
A website migration is any change big enough to move, rename or rebuild the web addresses that Google has already learned to trust. That covers moving to a new website system, full redesigns, changing your domain name, switching to a secure (https) address, and merging several sites into one. On the surface it looks like a build project. Underneath, it is a handover of every ranking, link and bit of hard-won reputation your site has earned, and that handover is where traffic quietly disappears.
The risk is rarely visible on launch day. A site can go live looking perfect, pass every sign-off, and still lose a third of its Google traffic three weeks later because some old web addresses were never pointed to their new homes, a page design quietly dropped its links, or content that was doing well got cut for the sake of a cleaner look. By the time the drop shows up in the figures, the team has moved on and the cause is buried under a hundred other changes. That delay is exactly why moves get treated as a design job rather than the search event they really are.
We treat a move as a careful, documented handover, not a hopeful flip of a switch. Every web address that carries rankings or links is listed and given a new home before anything moves. Old addresses are each pointed to their true new equivalent, not lazily bundled to the homepage. Content, page details and links are checked to make sure nothing was lost on the new site, and we watch closely through the fragile first weeks so anything that slips is caught in days, not discovered months later. Ideally we are involved before the build starts, because protecting traffic at the planning stage costs a fraction of clawing it back afterwards.
The work suits businesses that cannot afford to gamble the pipeline their current rankings feed. If organic search is a real channel for you, the safest migration is a boring one: nothing surprising in the analytics, no scramble the week after launch, and the authority you spent years building still pointing where it should.
Redirect strategy
You keep the ranking strength you spent years building when your site changes address. We plan where every old web address should send people, one at a time, test it on a private copy of the site and check it again once it is live, so the rankings that bring you enquiries still land where they should.
Content migration
You keep the Google rankings your pages earned when you redesign or switch website platform. We check that the main text, the little titles and descriptions Google shows in search, the headings and the links between your pages all carry over, so the pages doing the work survive the move.