AEO agency: get recommended by ChatGPT, Claude & Google AI
Code23 is an AEO agency for UK businesses: answer engine optimisation that gets you recommended by AI assistants. We audit where AI assistants send your buyers today, show which competitors appear instead of you, and close the gap with technical, content and earned-media work you can measure every month.
Audit where AI assistants send your buyers, then close the gap you can measure monthly.
Answer engine optimisation fails the way SEO used to fail: quietly at first, then all at once when a buyer asks ChatGPT who to hire and your brand is not in the answer.
[ 01 ]
Absent from the questions buyers actually type
Your site may rank for brand terms while ChatGPT, Claude, Gemini and Google AI Overviews recommend someone else on the unbranded questions that start real work.
01Prompt gap
[ 02 ]
The site cannot be read by AI crawlers
JavaScript-only rendering, WAF blocks and robots rules stop OAI-SearchBot, ClaudeBot, PerplexityBot and friends. If they cannot fetch you, they cannot cite you.
02Crawler block
[ 03 ]
Entity inconsistency blurs the brand
Different descriptions on the site, LinkedIn, directories and press make the same company look like three. Assistants hedge or pick a clearer competitor.
03Entity drift
[ 04 ]
Competitors own the sources AI already trusts
Listicles, review sites, YouTube and trade press feed generative answers. If those pages name your rivals and not you, owned blog posts will not close the gap.
04Where AI looks
[ 05 ]
Tracking Google rankings while citations are what count
Classic SEO dashboards celebrate position changes. Answer engines reward being named and linked inside the response. Different result, different work.
05Wrong measure
[ 06 ]
Reports that cannot show what changed
Without an agreed starting point, nobody can show what changed after three months of AI SEO or generative engine optimisation work.
06No starting point
what is aeo_
What is AEO?
AEO stands for answer engine optimisation: the work of getting your brand named and cited inside the answers ChatGPT, Claude, Gemini and Google AI Overviews give your buyers. It sits on top of ordinary SEO, with the same need for a crawlable site and honest measurement but a different result that counts: citations, not rankings. It is the right next step when buyers already research your category in an assistant and you can show who appears instead of you today. We start by measuring where you stand, not with a promise.
→B2B service firms whose buyers ask assistants for shortlists before they visit a website.
→SaaS and product teams competing for unbranded category questions across learn, consider and purchase.
→Ecommerce brands with real category demand where shopping and informational answers both matter.
→Professional services where Searchable's analysis of AI citations (September 2026) shows most citations still come from third-party sources rather than the brand's own domain.
We may not be the right fit when
×Brands with no web presence or product yet. There is nothing for an assistant to retrieve or cite.
×Anyone wanting guaranteed placements, paid mentions or a ranking promise inside ChatGPT.
×Businesses that will not share analytics access for GA4, Search Console or equivalent.
choosing an agency_
Evidence to check before you choose
01Ask any AEO agency how they measure where you stand today before they change anything.
02Ask how they choose and weight the list of questions your buyers ask, across learn, consider and purchase.
03Ask which third-party sites already feed answers in your category, and how they plan to earn mentions there.
04Ask what they show you at month three against that starting picture, not against a vanity score.
what we do_
Answer engine optimisation, end to end
Buyer question lists & AI visibility tracking
We build the list of questions your buyers ask AI assistants, weighted by category, split across learn, consider and purchase, and overwhelmingly unbranded. Then we track who gets cited across ChatGPT, Claude, Gemini and Google AI Overviews.
AI-readiness technical audit
We check crawler access for OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, PerplexityBot and Googlebot, plus server-side rendering, schema graph and answer-first page structure.
Answer-first content from real question gaps
Pages shaped around the questions you are absent from, with a citable answer in the first screen. Generative engine optimisation and AI SEO both need this; keyword stuffing does not.
Entity & knowledge-base work
One canonical description everywhere you appear. Organization, Service and FAQ schema that match it. Directories and Wikidata when the facts are earned, not invented.
Earned mentions where AI already looks
We map the listicles, review sites, YouTube channels and press that AI already cites in your category, then work those sources so the next assembled answer has somewhere honest to pull your name from.
Measurement & reporting
The three numbers that show it is working (crawler activity, AI referral quality and branded search), reported inside your own GA4, Search Console and analytics. Monthly in every tier. Every quarter we review what changed against where you started.
Six steps from an agreed list of buyer questions to a monthly report and a plain quarterly review. You always know what we measured, what we changed, and what comes next.
Step 1
01 - Scope
Commercial categories, the answer engine optimisation question list agreed with you, engines and competitors agreed in writing.
Scanning market_
51.4360°N / 1.0651°W6 signals
Step 2
02 - Measure
AI visibility, citations, sentiment, crawler access and connected GA4 / Search Console recorded before we change anything.
Spec 02 / grid 8px
Scope locked1390px
Step 3
03 - Find gaps
Map the questions you are absent from, who generative engines cite instead, and the third-party sources those answers came from.
Sprint 03_
Working softwareWeek 2
Step 4
04 - Act
Ship technical AI SEO fixes in your codebase, publish answer-first pages, clean the entity sheet and reach out to the sites AI already quotes.
Audit: release 2.4_
✓
✓
✓
✗
✓
✓
✓
0 critical6 checks passed
Step 5
05 - Monitor
Weekly portfolio review. When visibility drops, rule out measurement, competitor moves, shifts in where AI looks, and site breakage before blaming the platform.
Deploy: productionLive
Uptime 100.00%v1.0.0
Step 6
06 - Report
Monthly report of what changed and what we shipped. Every quarter we review the first 90 days together and decide whether to continue, change course, expand, or fix a risk.
Release cadence_
v1.0v1.4v2.0
Shipping weekly+340%
the audit_
AI Visibility & Search Audit: start free or go straight to the full audit
See the gap for free in 48 hours, or go straight to the fixed-price audit: where you stand today, who appears instead of you, and a 90-day roadmap.
Free AI visibility snapshot
See the gap before you spend anything
Free
One-page report in 48 hours. No call needed.
✓ 5 high-intent questions in your category
✓ ChatGPT and Google AI Overviews
✓ Who appears instead of you
✓ One-page report
– Competitor gap across four engines
– Which third-party sites AI already cites
– Technical AI-readiness review
– Connected GA4 and Search Console starting numbers
Sample of how we watch answer engine optimisation work: buyer questions tracked, engines named, citation status visible, technical fixes queued beside the measurement.
SAMPLE DATA
AEO OS · Live watch
Buyer questions tracked across four engines
Weighted learn / consider / purchase buyer questions with citation status per engine. Sample data for the console fixture.
Six reasons to trust Code23 with your AI visibility
[ 01 ]
60+ five-star Google reviews
Every one is a named client reviewing us on Google, not a quote we picked. Read them before you book anything, then hold us to the same standard.
[ 02 ]
50+ businesses helped to implement AI
Practical AI work for more than fifty UK businesses, from workshops to production systems. AI visibility is the same discipline applied to how your buyers search.
[ 03 ]
350+ projects launched
Websites, SaaS platforms, marketplaces and AI systems shipped for UK businesses. AEO is a new result to aim for on work we have delivered hundreds of times.
[ 04 ]
Ranking websites since 2005
Twenty years of technical SEO and content work under the same brand. Answer engines change where the answer appears, not the foundations it is built on.
[ 05 ]
We build the sites, so fixes ship in your codebase
Technical answer engine optimisation work lands in the repository that serves your pages, not in a PDF of recommendations for someone else to ignore.
[ 06 ]
Prices on the page, scope in writing, nothing changed until you approve
The audit price is published. Ongoing work is quoted from the 90-day roadmap before it starts. Nothing changes until you approve the starting picture.
aeo vs seo_
AEO vs SEO: what changes and what stays
Same foundations, different result that counts. Classic SEO earns a position on a results page. AEO earns a place inside the answer. Here is the job-by-job difference, and why you need both.
When AI consultancy can help and when a business may be ready to build
The job
AEO
Classic SEO
What counts as a result
Being named and cited inside the answer an assistant gives, on the questions your buyers type.
A position on a results page and the clicks that follow it.
Research
A weighted list of buyer questions across learn, consider and purchase, overwhelmingly unbranded, agreed with you before measurement.
A keyword list ranked by volume and difficulty.
Tracking
Citation presence, which sites AI quotes, and sentiment across ChatGPT, Claude, Gemini and Google AI Overviews.
Rank tracking for a set of keywords in Google.
Off-site work
The listicles, review sites, YouTube channels and press the engines already quote in your category.
Link targets chosen for authority and relevance.
Reporting
The three numbers that show it is working (crawler activity, AI referral quality, branded search) against where you started. Every quarter we review what moved.
Sessions, rankings and conversions month on month.
Foundations
Depends on every one of them. If assistants cannot fetch clean HTML, nothing above works.
Crawlability, indexation, schema, speed, entity consistency. Still the base layer.
the full guide_
AEO vs SEO: what is the difference, and do you need both?
SEO earns rankings and clicks; AEO earns citations inside AI answers. Same foundations, different result that counts. You need both; AEO fails without SEO.
We've recently completed Phase 1 of a bespoke business valuation tool with James at Code23, and I've been extremely impressed. He has taken the time to understand both the commercial and technical requirements, communicated clearly throughout, and delivered a well-thought-out system with a high level of flexibility. The admin dashboard, in particular, gives us full control over the scoring and valuation logic, which was a key requirement. I'm looking forward to working with James on Phase 2 and would have no hesitation in recommending him to anyone looking for bespoke software development – Jason Atkins, Director, Lansley Commercial
Jason Atkins Lansley Commercial
We couldn’t be happier with the service from Code23. They were a pleasure to work with—friendly, professional, and really took the time to understand our needs. They met our brief perfectly, delivering a website that looks great and performs exactly as we envisioned, all at excellent value for money. What sets Code23 apart is their aftercare. Knowing they are on hand to monitor and maintain our website means we never have to worry about its performance. Their ongoing support gives us complete peace of mind, and we’d highly recommend them to anyone looking for a reliable and skilled web development team
Dan Isterling Premier Community
It has truly been a fantastic experience working with the Code23 team. Every part of the process from the scoping and onboarding down to the design and implementation of our website was handled excellently. The quality of service delivered by the team is globally top standard and I couldn't be more satisfied with the final outcome.
Samuel Elili Redwire Group
I have worked with Code23 and their team for over 5 years across 3 different projects ranging from mobile app development to custom WordPress websites. Together the team bring a level of expertise and professionalism I have not seen anywhere else... The results achieved have really helped to grow our business. I highly recommend their services to anyone looking for a custom project to be completed on time and in budget.
Alexander Campbell EnjoyCBD
We worked with Code23 for a complete rebuild of our music related website. Excellent customer service and quality throughout and the build they have now completed is fantastic - exceeded all expectations across the board. Fantastic company with a dynamic and motivated team who are great to work with. Would highly recommend!
Nathan Fullbrook Jamma Music
Joe and the team at code23 have done a fantastic job helping us design and build our new website. I feel they really captured the quality of the Draks brand. Would highly recommend.
Louise Sellar Draks
Code 23 delivered a great website for me on budget and on time. They are a great team to work with and highly professional. They simply get the job done,
Luca Rado The Live-in Care Company
A real pleasure working with Code 23 who, from the beginning listened to our needs, were able to navigate the challenges that arose during the project, and had the expertise to deliver a secure and future proof site. We really valued their flexibility to adapt, without compromising the creative direction and functionality.
Laura Pride Berkeley PR
We chose Code23 to build our new website and we were not disappointed! A great service from start to finish, creative, professional and friendly. Can't fault them.
Hannah Vincent Ozone Interiors
I have worked closely with Code23, James in particular, for over a year now. They have been more helpful, more knowledgeable and more willing to go the extra mile than any other web developers that i've worked with in the past. I would strongly recommend Code23 for any website & app development.
Alex CampbellLocal Guide EnjoyCBD
We worked with Code23 in the Autumn of 2021 as a potential website development partner for our new company website. We immediately felt confident that Code23 could deliver a fantastic quality product and that they knew exactly what to do to take our digital presence to the next level. Fast forward 3 months, and with zero delays to our project, and we're delighted with our newly launched website. The styling, functionality and overall build quality is exceptional, and in the eight years that I've worked with web agencies, this is by far the smoothest migration and launch that I've been involved with. I would highly recommend Code23 as a website development agency.
SR
Sam Roberts Google review
I've been Code23 client for 5 years (and my website has been with the company from the start). James and his team is always responsive to any support I need and did an excellent job in re-designing and re-building our marketplace website. This was a very complex job with separate shops/payments/blog/categories and everything was custom coded and designed for our website. It was great to be part of the re-design process and working with James and his team has been a truly positive experience. Code23 has also provided our hosting and on-going support, back ups, online security and maintenance. Definitely recommended to anyone who is thinking of having their website designed by professional team - you'll be in a good hands!
MM
Magdalena Marsden Google review
What can I say! We are over the moon with our new company website. :) Code23 have most definitely got the 'WOW' factor. Eye catching design, superb user experience and extremely well project managed end-to-end. It was hassle free and the end result is far better than we ever imagined. I can't recommend enough. Thank you to James and the team. Top service!
CK
chanelle kirkum Google review
The results of Code23’s hard work, professional approach, and ability to work together with us to create our vision, has resulted in an end product that we couldn’t be happier with. They have provided us with a fully rounded service, including plenty of support, advice, and guidance for the future too. We are all very excited to welcome our customers back to our wonderful new e-learning platform.
JC
Jake Carter Google review
James and his team are very talented, energetic and ambitious ... as much in supporting our business as in also developing their own. Very clever, very quick, on the front-foot, spot-on detail. No smoke nor mirrors, but straightforward and honest. We are delighted to have found them and very grateful for their help in making our new business flourish. Very, very, very highly recommended.
TT
Teachers To Your Home Google review
We've worked with Code23 for many years now with our current site and we are in the process of building a new site with them. Very happy with the level of service and responsiveness, would highly recommend their services.
VR
Vintage Roots Google review
Joe, James, Steve and Phil are an absolute pleasure to work with. I am looking forward to working with them again soon
SM
Scott Marshall Google review
Such a pleasure to deal with such a professional and knowledgeable company. I would highly recommend them.
JS
Jim Sidroy Google review
Amazing shop experince with best service
AE
Ahmed EidLocal Guide Google review
After using a Marketing agency to design my first website, they done quite a shabby job and making amendments only made things worst. Shortly after I used several different freelancers with the majority of them promising great outcomes but falling short on delivery, I came across Code 23 almost half a year ago with little faith in finding a good development team. I had a thorough conversation with director James who assured me he and his team could help and introduced me to some great options in design for an affordable price. I was introduced to Project Manager Joe shortly after. My website development and design are near its end and I’m glad I met the team. Joe is great with feedback, patience and understands me as a client. I’d like to also thank Isaac and the rest of the team in producing a stunning, professional and sleek website. I’ll definitely be using the team for continued work and future projects! Thank you!
OG
Our Graduates Google review
Code 23 are a first class web design agency. James, Joe and their team are a pleasure to work with and made the process very easy from a client perspective. I was impressed with their ability to work up briefs quickly, their ability to keep to deadlines and the quality of the site that they delivered. They are highly recommended and an agency we will continue to work with on other projects.
WT
Wilde Toast Google review
Code23 undertook a large redevelopment project for us, including the rollout of over 100 individually branded websites. The overarching goals of the project were to improve: 1. Our Flexibility & Control 2. Customer Experience 3. Transparency Around Pricing All of which were delivered to an excellent standard, especially the new custom quote builder, which is industry leading! We look forward to continuing to develop these websites and build on the relationship with Code23 in future. Great work team!
FP
Funeral Partners Google review
We have used Code23 for many of our website projects and they have been absolutely fantastic every time. They ensure that meetings are held to discuss the particular project needs, they set clear timelines and stick to them, they are always on hand for client support (e.g. calls/meetings with client to take them through processes.) The team are always easily contactable and happy to help with any queries and most importantly, their work is outstanding!
B
BH&P Google review
Working with Code23 on CIS's fantastic new website has been a pleasure from start to finish! I would highly recommend their web services to anyone looking to bolster their digital presence. Having worked with several web designers in the past, I can confidently say that Code23 is a cut above the rest. Thank you to everyone at Code23 for your professionalism, hard work and vision.
ON
Oliver NewtonLocal Guide Google review
James is very knowledgeable and is great to work with. He has been very responsive and helpful. We look forward to continuing to work him and his team.
PD
Paul Dawson Google review
Can't recommend these guys enough... really great service with expert advice. The technology they managed to integrate into our self service kiosk was outstanding and went the extra mile to make sure everything was as we wanted. Great job guys, i'll be engaging with Code23 for any future upgrades and add ons required TAN
TR
T-A-N Reading Google review
I'm incredibly impressed with Code23 - they have been a pleasure to work with which has been a breath of fresh air! They are professional and are always quick to respond. Thank you Code23! Highly recommended!
JB
Jennifer Butler Google review
Fantastic! Nothing was a problem for James and the team at Code23 when it came to delivering our website. Cant wait to see how its recieved in the big wide world now!
NM
Nic Morgan Google review
Having turned to Code23 after a bad experience with another web designer, I can confidently say that the service James, Joe and their team provided is exceptional. They are incredibly receptive, professional and patient. They listened to my "vision" and together with their knowledge and experience delivered an e-commerce website which is perfect, even better than I though it could ever be. Throughout the process, James and Joe were always on hand and easy to communicate with and would send regular updates. I am particularly appreciative of the time, care and dedication they put into this project. Many thanks for making me the website of my dreams!
EM
Eve Moira Google review
It's safe to say Code23 rescued an interiors-obsessed creative - with zero tech savvy - but with a big e-commerce vision! The talented team at Code23 assembled my website graphics, layouts and shop brief with a Wordpress e-commerce theme to create a secure, functioning website that I am proud of. They also oversaw the 'go live' and future-proofed the backend (to the extent that is possible!) and now maintain my site with daily checks and updates. They were a pleasure to work with, always at the end of the phone and took my lack of technical knowledge in their stride, guiding me through processes as necessary. Highly recommend.
AS
Annabel Smith Google review
We approached Code 23 at a time when we had been let down by our previous website design & management contact and from the very first email exchange, it was clear we were dealing with an excellent company. James, Joe and their team are always on hand to provide the advice and reassurance we need for all things web and digital. In the short time I’ve worked with them so far they’ve provided a fully managed service for our website, made significant improvements to its design and set up, and somehow managed to create a very complicated custom plugin development work seamlessly for our property sales and lettings element of the business - all whilst talking in plain English and not baffling us non-technical people with jargon. If you’re looking for a digital agency that will go the extra mile without being asked, provide clear, transparent costings, with work delivered by good honest people then Code23 are the company for you.
KG
KatieLocal Guide Google review
After four years, my business website needed a refresh and I turned to Code23. They were full of great ideas, helpful and patient, turning my requests and ideas into something tangible. I’m incredibly happy with the end result and wouldn’t hesitate them to anyone looking for web design support.
DR
Dr. Richard MacKinnon Google review
After wanting to up my game with my marketplace website I found Code23. They made switching web agencies really easy and have consistently provided great support, thoughtful suggestions and advice to improve the website thats has helped me focus on growing the business. The team are super responsive which is very reassuring for a non-techie!
TA
Team Admin Google review
As a professional trying to struggle with the less than perfect IT provisions of the (IT-clueless) NHS, Code23 has been a breath of fresh air! Code23 has been phenomenal in helping me set up and in supporting my specific non-standard projects. I was particularly impressed by how friendly, approachable and versatile they were, treating me with patience and understanding. A friendly, approachable, efficient, versatile and highly professional service!! Many thanks Code23...
SK
S KLocal Guide Google review
Our website needs have been looked after by Code 23 for many years. We have successfully developed a number of websites together and we have always found Code 23 to be excellent to work with. I would highly recommend Code 23 to anyone looking for a professional, efficient and friendly website designer.
A
Adam Google review
Code23 were the best company I could have found to start my new business website. Despite it being a relatively hard to explain idea, James and the team understood exactly what the site's function was and built a brilliant bespoke design to fit my needs. Even going the extra length to recommend ideas and tweaks that I hadn't thought of to improve the way it runs and deliver something that I am proud to have as the main online front for my business
CB
Chris Bound Google review
We've worked with Code23 for many years now. They designed our first website and have been working on our SEO for a year or so now. On the back of this they've completely re-designed our site, which has just gone live. We're delighted with it. Code23 give excellent service - always professional, prompt and technically superb. Many thanks to the team.
FH
Franny Hornblow Google review
We have been working with James and the team at Code 23 for about 18 months now on a lengthy and sometimes complicated app development. At all times we have found Code 23 to be calm, competent, and their advice has been invaluable. The app is now live and we are extremely pleased with the results and are happy to continue our relationship with Code 23 for enhancements and hosting. We would be pleased to recommend Code 23.
SC
stuart campbell Google review
Pleasure to work with and very happy about the design element, general service and performance of Code23
WF
Williamson Fine Teas Google review
I have used Code 23 on 3 different occasions over the last 7 years. Every company I have worked for has had a very different requirement and Code 23 designed and built 3 completely bespoke sites. James is always on hand to answer queries. I highly recommend Code 23. I wouldn't even consider another web agency.
HE
H EastlakeLocal Guide Google review
I approached Code 23 for help with security on my website. They were helpful, receptive, friendly and professional. The work was completed in less than 24 hours and the few inevitable follow up glitches were dealt with immediately. Very pleased and have already recommended them to others.
NO
Nick Owen Google review
Code23 have provided great guidance and advice for my a site they created for a new business. Highly recommend genuine people that offer a first class service.
DM
Dhreen Malam Google review
James and his team at Code23 have recently provided us with a brand new website with a responsive design that looks great on any device. Being based on the WordPress platform it's easy for us to manage the content ourselves, which allows us to keep the website fresh as new products and industry news arrives. There are lots of ways of getting websites built, but choosing Code23 turned out to be a great investment for us. James and his team are at the cutting-edge of web design and technologies, and after initial discussions they completed the build needing very little input from us thereafter. We're very pleased with the final result - James understood exactly what we were looking for and managed to make the whole process exciting rather than tedious. Highly recommended!
SH
Steve Huse Google review
James Ansell really understands the technology behind building a robust and search engine friendly website. Code23 manage web design and build projects extremely efficiently, with complete visibility throughout the project. As a marketing agency, I need technical partners that are more than just efficient. James and his team think creatively throughout every project, ensuring that the finished site really brings the proposition to life, is easy to navigate, and the right fit for clients' needs.
RH
Rebecca Holland Google review
In my eyes James is a genius! We worked together several years ago when I decided to go freelance as a PowerPoint presentation designer. He played a huge part in getting me set up to go it alone and has supported me ever since. In all honesty, at times I don’t know what I would have done without him. He is not only technically savvy but a brilliant web designer. He understands my limitations when it comes to IT and has always been there whenever I have needed help at the drop of a hat. I would absolutely recommend code23. They are true experts in their field and will always be there to help in whatever way they can. Highly, highly recommend them!
RD
Rachel Deadfield Google review
I am a professional Sports Massage Therapist, whom Code 23 created my website, branding and helped me through the start up of my new business. James at Code 23 was not only my web designer but also my mentor as I was new to business. James and the team at Code 23 helped me through creating the website, which would be best for me and my business. I found James was very approachable, professional, knowledgeable and honest as well as the quality of his work being at the highest of standards. I would not hesitate to recommend Code 23 to anyone in the future.
GK
Greg Kimber Google review
James and the team have provided web design, hosting and ongoing support to our business (Universal Science Ltd) for a number of years and they have never failed us. Response to enquiries is always fast, friendly and accurate and I know I can rely on Code23 to do what they say, when they say. James is really on top of his game and knows every detail of our setup and can always advise on what else we could be doing or improving. Overall, an excellent business partner!
JV
Jason Vaughan Google review
Code 23 took the time to understand our companies needs and designed our website accordingly. James was always available to guide us through when I needed help. The design was bold and engaging and with help from Code 23 we have been able to keep it updated and fresh. A great company to work with.
HE
Hazel Eastlake Google review
Code23 totally redesigned and rebuilt my online marketplace (WowThankYou) nearly 3 years ago, and have continued to support the site, and us, ever since. When things go wrong, they are quick to sort it. When we have questions, they go out of their way to answer us, and when better technology comes along that we ought to consider they tell us about it. Without James and his team I couldn't guarantee we'd still be trading! On behalf of WowThankYou, and myself, I can wholeheartedly recommend Code23 if you want a dynamic, stand-out website with the security of brilliant ongoing support. We look forward to many more years association with Code23
TK
Tracey Kifford Google review
James has provided us with expert advice and built two websites, both of which receive glowing feedback from our clients. James is on hand to answer any queries and always provides excellent customer service. We do not hesitate to contact him whenever we have any web-related issues.
TW
Theale Wellbeing Google review
We've engaged Code23 on multiple web projects over the last 7 years. Their professional approach, insightful advice and personalised designs have helped turn our ideas into websites that generate business. The team at Code23 treat our brand as if it were their own, and they're always willing to go with extra mile. They're worth every pound we've spent with them.
JG
JLocal Guide Google review
The team at Code23 were extremely professional, patient and proactive with the build of our new website, providing added value through polite suggestions on improvements and an experienced insight into how we could improve our SEO. We look forward to working together on future projects.
NV
Niels van Gijn Google review
We wanted to update our site to an ecommerce site with the latest social media links. James had previously built our site so changes like these could be made with the least disruption and cost. We were thrilled with the results. As always James took the trouble to clearly understand our needs.
EH
Elizabeth Hibberdine Google review
James Ansell really knows his stuff... and goes over and above the call of duty in my opinion. He's done everything we've ever asked and more. We are always getting comments about the look and feel of our website and how easy it is to navigate and use. This is all down to James. I would highly recommend James to anyone without a moment of hesitation.
VF
Vernon Francis Google review
We've worked with Code23 on a number of projects now, both under Total Fundraising and Sponsor.ie. The results have always exceeded expectation and the service is great. I would have no issue recommending them and will continue to use them in the coming years.
SS
Simon ScriverLocal Guide Google review
Working with James at code23 was a pleasure. I found it very professional and I was extremely happy with the service they provided. He went above the call of duty with additions and revisions, and I couldn't be happier with the final product they produced.
SN
Shane N Google review
Code23 always give us a fast and friendly service where nothing seemed to be too much trouble. All the tweaking requests were gladly implemented by them which greatly relieved my mind as some things you simply can't know until its already done. It felt just like a friend was setting it up for me and teaching me how to use the various backend functions.
MM
Martin McNeill Google review
James is uber efficient! A resolution, response and or answer is back within a very timely manner, no chasing is required. James is clearly "at one" with IT and technology, however, he understands not everyone is as comfortable with code and jargon. He pitches his communication to suit your level of understanding which is such a relief! Thank you James and code23 for your on-going support. Cat from ABCpure
BW
Ben Webeck Google review
Code 23 are consummate professionals and I could not be more thrilled with the website they designed for me! With the minimum of fuss, maximum care, they guided me through the process and accommodated every one of my requests. I recommend them to absolutely everyone. You won't find better, I guarantee it.
LA
Lucy Abrahams Google review
James is great to work with, gets things done and produces high quality work :)
JS
Jeni Sanderson Google review
About Code23_
Reading-based. Shipping since 2005.
Code23 is a Reading, Berkshire AI-native agency that has built and ranked websites since 2005. We ship the technical answer engine optimisation fixes ourselves, run the same programme on code23.com, and publish prices before anyone asks.
AEO guides: what it is, what it costs, how AI picks brands
What is AEO, AEO vs SEO, what an AI visibility retainer costs, and how ChatGPT and Claude choose who to recommend. Written from the work we run on our own site.
AEO stands for answer engine optimisation: the work of earning recommendations and citations inside AI assistants such as ChatGPT, Claude, Gemini and Google AI Overviews. It covers technical access for AI crawlers, answer-first pages, entity consistency and earned mentions in the sources those engines already trust.
AEO vs SEO: what is the difference?
They share the foundations: a crawlable site, honest measurement and content that answers real questions. They differ in what counts as a result. Classic SEO tracks rankings and clicks on a results page. AEO tracks whether assistants name and cite you on the questions your buyers type. You need both, and AEO fails without the SEO foundations underneath it. Our AEO vs SEO guide walks through the differences job by job.
What is an example of AEO?
A practical example: you discover ChatGPT recommends three competitors on "best [your category] agency UK" while your site is absent. You open blocked crawlers, publish an answer-first page that states a citable method, earn a mention on a listicle those answers already use, then re-measure the same question thirty days later against where you started.
What is the difference between AEO, GEO and AI SEO?
Answer engine optimisation (AEO), generative engine optimisation (GEO) and AI SEO / AI search optimisation are overlapping labels for the same job: becoming the brand assistants retrieve and cite. We use AEO on this page, keep GEO and AI SEO in the copy so searchers find us, and run one programme rather than three retainers.
How much does AEO cost in the UK?
Our AI Visibility & Search Audit is £1,500 + VAT (fixed, ten working days). The free AI visibility snapshot shows the gap in 48 hours with no charge. Ongoing work after the audit is quoted from the 90-day roadmap before anything starts, and the audit fee is credited against the first month if you continue.
Does AI SEO really work?
It works as a contribution, not a guarantee. Conductor CMO study 2026: 94% of enterprises plan to increase AEO or GEO investment in 2026. Searchable's analysis of AI citations, September 2026, shows professional services brands earn only 26.9% of their AI citations from their own domain (retail 28.6%, finance 29.6%, hospitality 33.7%, B2B tech 41.4%), so third-party sources matter. We report the three numbers that show it is working in your own analytics. We do not promise a placement.
How long before we see results?
First we measure where you stand. The first 90 days focus on crawler access, entity clean-up, answer-first pages for the biggest question gaps, and earning mentions on the sites AI already quotes. At month three we review what changed against that starting picture and decide together whether to continue, change course, expand, or fix a risk.
Do you guarantee we will appear in ChatGPT?
No. Guaranteed placements and paid mentions are a red flag. Assistants choose sources by their own retrieval rules. We improve the evidence they can find and measure whether citations move. Anyone selling a guaranteed ChatGPT listing is selling a promise they cannot keep.
Which tools do you use?
Our own prompt tracking plus your GA4, Search Console and analytics stack (including PostHog where you already use it). We do not lock the programme to a third-party vendor dashboard you cannot keep if you leave.
Can AI agents do SEO?
Yes for the routine work: crawler checks, sampling buyer questions, draft answer-first outlines and monitoring alerts. People still decide the diagnosis, approve what ships in your codebase and own the quarterly review.
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Speak to us for your free AI visibility snapshot
The free snapshot checks five high-intent questions and shows who appears instead of you. The £1,500 audit gives the full picture and a 90-day plan. We only suggest ongoing work if the audit shows it is worth it.
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