Marketing and web design are sold together constantly and go wrong together just as often. The failure has a predictable shape: a beautiful rebuild launches, traffic falls, and nobody can say why, because the design contract ended at launch and the marketing contract started after it. The site was never scoped as a marketing asset, so nobody was accountable for whether it performed as one. Buying the pair from one provider fixes the handover problem and introduces a different one, which is that few studios are equally good at both. This page sets out how to decide which structure you need, what belongs in a rebuild brief, and the measurable standards you can hold either arrangement to.
The handover is where the money leaks
A rebuild changes URLs, page structure, internal linking, load performance and content depth all at once. Every one of those is a search variable. When design and marketing are separate contracts, the redirect map, the preserved copy and the tracking migration land in the gap between them and get done badly or not at all. The single most common consequence is that pages which ranked for years disappear because their URLs changed with no redirect, and the loss is not noticed for a month because analytics was also broken during the migration. If you are buying separately, write the handover into both contracts: name who produces the redirect map, who checks it after launch, who verifies that tracking fires, and who is accountable for search performance in the ninety days after go-live. If nobody's name is against that line, it will not happen.
What a marketing-aware rebuild brief contains
Start with the queries and the reader, not the moodboard. The brief should name the pages the site must have because there is demand for them, not just the pages the organisation chart implies. It should specify what each page must persuade the reader to do and what evidence it needs on it to do so. It should state the technical floor: page performance targets, mobile behaviour, structured data for the content types you publish, and a content management system your team can actually use without calling the agency. And it should carry an accessibility standard. The ADA guidance on web accessibility explains why this is not decoration, since inaccessible sites exclude real customers and create legal exposure, and the same structural discipline that makes a page usable with a screen reader also makes it legible to search engines.
Performance is a measurable specification, not a taste question
Google publishes Core Web Vitals as a small set of user-centred metrics covering loading, interactivity and visual stability, and documents them in Search Central alongside guidance on how they relate to search. That gives a buyer something rare in design procurement: an objective acceptance criterion. Put target thresholds in the contract, measured on real mobile data rather than a laboratory score on the agency's machine, and make final payment contingent on meeting them. Do the same for a small number of other checkable items: no broken internal links, a valid sitemap, redirects for every retired URL, and analytics verified as recording before launch rather than after. Designers who work this way welcome the specification because it protects them from a client who keeps adding heavy elements. Designers who resist it are telling you something.
One provider or two, and how to decide
One provider suits organisations that want a single accountable party and do not have internal capacity to manage a handover. The risk is that a studio strong on visual craft treats the ongoing marketing retainer as an afterthought, or that a marketing agency's design output is competent but generic. Two providers suit organisations with someone internally who can hold the interface, and they usually produce better work in each discipline. Whichever you choose, ask each candidate to show a site they built and then the search and enquiry data from the twelve months after it launched. Almost nobody volunteers that pairing, and the ones who can produce it are a different class of provider. Where the two are genuinely bundled, insist the proposal separates the build fee from the ongoing web design and SEO services retainer so you can see what you are funding after launch.
Questions people ask about marketing and web design
Will a redesign hurt our search rankings?
It can, and usually does when the migration is unmanaged. Changing URLs without redirects, cutting page content or slowing the site are the three common causes. A properly planned migration with a complete redirect map and preserved content typically holds performance and often improves it.
What performance standard should we specify?
Google's Core Web Vitals give measurable thresholds for loading, interactivity and visual stability. Specify them as acceptance criteria measured on real mobile field data, not a one-off laboratory score, and make sign-off depend on meeting them.
Do we need to worry about accessibility?
Yes. The ADA guidance on web accessibility explains that inaccessible websites can shut out people with disabilities and create legal risk for businesses and public bodies. It is also cheaper to build in than to retrofit, and the same structure helps search engines read the page.
Who should own the website files and accounts?
You should. The domain, hosting, content management system licence, analytics property and design source files should sit in entities you control, with the agency granted access. That single arrangement decides whether changing provider later is a decision or a rebuild.