Web DesignPlatforms

Outgrowing a DIY Website Builder: Where Wix and Squarespace Stop for Growing NZ Businesses

Kage Works16 August 20268 min read

Wix sites pass Google's Core Web Vitals more often than self-hosted WordPress sites do. In snapshots of HTTP Archive's Core Web Vitals Technology Report reported through late 2025 and 2026, Wix origins passed all three metrics at somewhere between 71% and 81%, Squarespace around 70%, and WordPress between 46% and 49% (Search Engine Journal, Digital Applied). The exact figure moves month to month and splits by device, and the ordering has held across every snapshot published since 2025.

That takes the most common sales pitch for leaving a builder off the table. A studio telling you your Squarespace site is slow is selling a rebuild on the one dimension the platform handles for you.

The ceiling is real. It sits in how fast you can change the site, and in what the site can connect to. Both of those tighten as the business grows, which is why the builder that suited you at three staff starts costing you at twelve.

Check the field data before you accept a speed rebuild

Run your homepage through PageSpeed Insights and read the top section, the one labelled with what real users experience. That block comes from the Chrome User Experience Report: 28 days of measurements from actual Chrome visitors. The Lighthouse score underneath it is a simulation run on a throttled connection, and it is the number most agencies screenshot.

A builder site with passing field data has no speed problem to fix. If your field data fails, the cause is usually the third-party scripts you added rather than the platform, which our breakdown of what makes sites slow covers in order of impact.

The template you picked in year one is a one-way door on Wix

Wix does not let you change a site's template after you publish. Switching means building a new site and moving the content across, and the platform's own import tool handles blog posts between Wix sites while the rest goes over by hand (LiteExtension). The behaviour has held for years despite steady requests to change it, so plan around it rather than waiting it out.

The cost lands at the moments growth creates. You rebrand. You add a second service line that needs its own set of pages. You go from a brochure site to service-area pages targeting Papakura and Pukekohe separately. Each of those is straightforward on a system where layout and content are separate, and each is a rebuild when the layout is welded to a template you chose before you knew what the business would become.

Squarespace works differently, and few comparison articles raise the distinction at signup. Every 7.1 site runs on one underlying system with styling on top, so restyling does not force a rebuild. Growing on Squarespace costs you elsewhere.

Every change ships straight to the live site

Squarespace has no staging environment. The workaround practitioners use is previewing an unpublished template or duplicating the site, and code injection settings apply to the live site and the copy at once, so custom code cannot be tested in isolation (Squarespace Forum, Squarestylist).

Recovery is thinner than owners expect. Undo and redo cover most changes inside an editing session and keep working after a save, then stop once you exit the page (Squarespace Help Center). Squarespace publishes no site-wide version history, so recovering content someone deleted last week means working through its lost-content troubleshooting guide (Squarespace Help Center).

Wix handles this better. Site History keeps saved and published versions, lets you name them, and restores an old version as a new draft you then publish (Wix Help Center).

A five-page brochure site edited on a Tuesday afternoon carries almost no risk. The same platform holding your booking form and your online orders makes each edit a live change to a revenue path, so you stop making them casually. You batch changes, you wait for a quiet week, and the site drifts behind the business. Both platforms hand out proper roles, with Squarespace offering unlimited contributors on its billing plans across eight permission levels, and Wix adding per-page editing permissions (Squarespace Help Center), so this is not a login problem. Access was solved. Safe deployment was not.

Your business systems connect by iframe

Fergus, the New Zealand job management platform, integrates its enquiry form with your website as an iframe embed or an outbound link, and publishes separate setup guides for Squarespace, Wix and WordPress (Fergus Help Center, Fergus Help Center). ServiceM8 connects to other systems through Zapier or its API (ServiceM8). Tradify, founded in New Zealand, syncs with Xero and MYOB and sells its own instant website.

Those integrations work. The enquiry reaches your job list. The pattern costs you at scale, because the customer fills in a form styled by another company, inside a box on your page, and the data travels one direction. Your website cannot show a real available slot or tell a customer their job moved to Thursday, since doing either means running code on a server against your job data, and a builder gives you an embed instead.

For a plumber taking six enquiries a week, an embedded form is the right answer and the cheapest one. At sixty enquiries a week with two office staff retyping them, the same embed is the reason your quotes go out late. Our guide to what gets automated in a small NZ business covers which of those handoffs pay for themselves first.

The subscription moves in one direction

New Zealand host MyHost tracked Wix's plan prices since 2023 and found the Business plan went from US$38 to US$46 a month, a 20% rise worth about NZ$160 a year, with every tier except Business Elite rising at least once (MyHost). MyHost sells a competing builder, so read the framing as a competitor's and the plan prices as checkable facts.

Two things compound that. Both platforms bill in US dollars, so your NZD cost moves with the exchange rate and your bank's foreign currency margin, which our platform comparison prices out including the GST exemption most registered businesses leave unclaimed. And premium apps bill separately, so the number on the pricing page stops matching your card statement around the time you add booking and reviews.

Add up the real annual total, apps included, and run it out four years. A business paying NZ$1,400 a year in subscriptions and apps spends NZ$5,600 over that period, which reaches the bottom of the NZ$5,000 to NZ$20,000 range NZ studios charge for a custom build, set out in our NZ website cost breakdown. The comparison is not clean, since the custom build adds hosting and a developer for changes while removing the licence. It does show that the subscription stopped being the cheap option somewhere along the way.

Your data leaves, your site does not

Wix exports contacts, orders, products and CMS collections as CSV files, and blog posts through a separate request process (Wix Help Center, Wix Help Center). No export produces your pages or your design as files you can host elsewhere (LiteExtension).

Plan on that basis. Leaving Wix is a rebuild with your content pasted in, not a migration, and the redesign versus rebuild numbers apply from the start. Squarespace gives you more, exporting to a WordPress XML file with documented gaps around store, portfolio and index pages, and we itemise those exclusions in the platform comparison.

Do the export test now, while you have no plans to move. Pull the CSVs, open them, and check that customer records and order history come out in a usable shape. A builder that exports your customer list cleanly costs you far less to leave than one that does not, and finding out during a rebuild is the expensive way.

Four numbers that tell you the ceiling has arrived

Count the third-party embeds on your site: booking widget, form, reviews, chat, calculator. Past four or five, you are paying a platform to host other companies' interfaces.
Track hours per month spent on workarounds: retyping enquiries into another system, editing the same content in two places.
Count the changes sitting in a queue because publishing them feels risky, or because one person holds the knowledge.
List the data you would need if you left tomorrow, then check each item against what the platform exports.

Under those thresholds, stay. A builder that renders fast, publishes in minutes and costs NZ$600 a year is doing a job that would otherwise cost you a retainer, and swapping it for a custom build buys you capability you have no use for yet.

We build custom sites at Kage Works, so weigh that bias against your own numbers. Growth shows up as a queue of changes you cannot make and enquiries your staff answer by hand. Price the move against that queue rather than against the monthly fee, since the fee was the smaller half of the cost.