Picture a homeowner in Thornlie with water coming through the ceiling. Phone in one hand, bucket in the other. They search "plumber near me", tap a couple of map results, and give each site a few seconds to show a phone number. If your page is still a blank loader, they hit back and call the next business. You never knew they were there.
That's the real cost of a slow mobile website, and it's the heart of the custom website vs Wix Perth question. Not a vanity score. Calls that never ring.
I'm Rav from JetBlok Studio in Gosnells. I build custom websites for Perth tradies and small businesses. People ask whether a custom site is actually better than WordPress, Wix, Squarespace or GoDaddy Sites, or whether it's just a designer selling something. Fair question. So here's an honest Wix vs custom website comparison, built on real lab scores from real Perth websites, plus the places where a template does the job perfectly well.
The Numbers: Perth Sites on Mobile
The JetBlok scores below come from PageSpeed Insights for jetblok.com.au. The competitor rows are anonymised local sites. I've left them unnamed on purpose, because the pattern matters more than the business behind it. If you're comparing a custom website vs Wix in Perth, this is the bit to look at.
| Website | Platform | Mobile Performance | Mobile LCP | Notes |
|---|---|---|---|---|
| JetBlok Studio (jetblok.com.au) | Custom Next.js | 92 | - | PageSpeed Insights: Accessibility 96, Best Practices 100, SEO 100. Desktop Performance 100. |
| A local café site | Builder site | 75 | 5.7s | The strongest builder result in this set, and the main content still takes 5.7 seconds to appear on a phone. |
| A construction site on Wix | Wix | 52 | 6.0s | Platform weight shows up on mobile. |
| A dental practice on Webflow | Webflow template | 43 | 12.2s | Longest main-content wait in this set. |
On those PageSpeed Insights captures, JetBlok also scores Accessibility 96, Best Practices 100 and SEO 100 on both mobile and desktop, with desktop Performance 100.
Lab scores shift a little from run to run, so treat these as a snapshot rather than a permanent grade. Even so, the spread is hard to argue with. A custom Next.js build scored 92 on mobile Performance, and the three template or builder sites scored 75, 52 and 43.
What LCP Means for a Tradie's Phone Call
LCP is Largest Contentful Paint. In plain terms, it's how long until the biggest thing on the screen shows up. On most trade sites that's the hero image or the headline, the bit that says who you are and what you do.
Google's guidance is that a good LCP is 2.5 seconds or under, and anything over 4 seconds counts as poor.
Why that matters for calls:
- The customer is in a hurry. Emergency and same-week jobs get searched on phones, often with patchy reception.
- They're comparing you to the map pack. Your Google Business Profile sits next to two or three competitors. One back-swipe and they're on the next listing.
- Nothing useful happens until main content loads. If the headline, phone number and "Get a quote" button arrive last, the page is empty for that whole wait.
This is where a Wix vs custom website comparison stops being theoretical. All three competitor sites in that table sit between 5.7 and 12.2 seconds on mobile LCP, well past the 4 second mark Google calls poor. If the phone number and call button take 12.2 seconds to appear, that's a long stare at nothing. Overall Performance blends several metrics, so check LCP as well when you run your own test.
I won't pretend there's a simple formula linking speed to local pack rankings. Relevance, distance and prominence still sit at the top. A fast, clear site just makes your listing more useful to people who do click, and useful listings turn into calls.
Custom Website vs Wix Perth: Where the Speed Gap Comes From
Wix and Squarespace are hosted website builders. You pick a template, edit it visually, and pay a monthly or annual subscription that includes hosting and an SSL certificate. There's nothing to install and nothing to patch, which is a genuine advantage when you're on the tools all day.
The trade-off is that every page renders inside the platform's own system, and you carry the weight of that system whether you use it or not. You're also working inside a closed ecosystem, which limits how far you can push performance later. The construction site on Wix in the table scored 52 for mobile Performance with a 6.0s LCP. Real work to show, held back by platform weight rather than anything they did wrong.
WordPress sits in the middle. It gives you far more control than a closed builder because you can get at the code and change how things render. That control comes with upkeep: hosting, updates, security and plugin conflicts all land on you or whoever you pay to manage them.
Whichever platform you're on, the usual causes of a slow template site look the same:
- Heavy themes and page builders. Many WordPress themes, plus Wix and Squarespace templates, load scripts and styles for features you never use.
- Plugins and apps stacked up. Chat widgets, sliders, booking tools, pop-ups and tracking all compete to load first.
- Oversized images. A multi-megabyte hero straight off a phone camera is one of the most common LCP killers I see.
- Animations before content. Fade-ins look fine on desktop. On a throttled phone they delay anything useful.
A custom build takes a different route. The pages are coded for your business, so the scripts and styles on a plumbing page are the ones a plumbing page actually needs, and nothing else. That's the approach behind the mobile Performance 92 and desktop Performance 100 on jetblok.com.au.
Where WordPress, Wix and Squarespace Do Fine
I'm not going to pretend a builder site is always the wrong call, because it isn't. Look at the table again: the café scored 75 for mobile Performance. That's a respectable builder-site result. It just doesn't beat JetBlok on mobile Performance here, and its 5.7s LCP sits well above the 2.5s "good" line.
In a straight Wix vs custom website choice, a builder can be the sensible pick for:
- A simple brochure site with a handful of pages and little changing month to month.
- A business that needs to be online quickly and wants to edit its own text without ringing anyone.
- An owner who's happy paying an ongoing subscription that bundles hosting and SSL.
- A very tight budget where the alternative is no website at all.
A few more honest points. WordPress can be fast: a lean theme, good hosting and disciplined plugins can load well, but it takes ongoing work. And speed alone doesn't win jobs. A fast site with vague copy and no clear call to action still won't convert.
A builder rents you a website rather than handing you one. For a few pages, that's a fair trade. It gets expensive when the site grows, when speed matters, or when you want to take everything somewhere else later.
Where a Custom Build Pulls Ahead
Speed is the easy thing to measure. The bigger win with a custom website in Perth is that every page is built around what a customer needs to do next.
- Ownership. The code belongs to you. There's no platform account holding your site, and no forced migration if a provider changes direction.
- Speed control. When something's slow, there's one codebase to fix, not a template, three plugins and a platform you can't touch.
- Structure that matches how people search. A dedicated page for each core service, such as hot water repairs, switchboard upgrades or decking, plus service area pages for the suburbs you actually want work in, like Gosnells, Canning Vale, Armadale or Byford.
- Calls to action that work on a phone. I put the phone number and quote button where thumbs can reach them, keep them visible as people scroll, and make sure they load early. Tap-to-call and WhatsApp work straight away.
- Local SEO foundations built in. Consistent business name, address and phone matching your Google Business Profile, LocalBusiness structured data, unique meta titles and descriptions for every page, and compressed, correctly sized images in modern formats.
Be careful of anyone promising positions, though. I don't guarantee rankings, and no honest web designer in Perth should. A fast, clean, well-structured site removes the technical reasons Google or a customer might pass you over. What happens after that, including SEO in Perth or local SEO, is a separate job with its own set of decisions.
What a Custom Website Costs in Perth
Price is where these comparisons usually get vague, so here's the actual structure at JetBlok. All three are one-time build prices, not monthly fees.
| Package | Price | Suited to |
|---|---|---|
| Starter | $999 one-time | A lean starter site for a business that needs to be found and called. |
| Growth | $1,999 one-time | A larger build with more pages and service areas. |
| Pro | $2,999+ | Custom features, with scope set by what the business needs. |
Hosting is included on JetBlok-hosted Next.js sites, so there's no surprise monthly bill just to stay online. There's also an optional Care Plan at $299/mo for ongoing SEO, updates and support. You own the site without it. When you weigh up a custom website in Perth against a builder, compare a builder's subscription with a one-time build over several years. The full breakdown sits on the pricing page, and there's more on websites for tradies and web design in Perth if you want the longer version.
If a builder subscription is working for you, keep it. If it's costing you calls, it's worth comparing.
What to Fix First If You're Not Rebuilding
If a rebuild isn't on the table this year, you can still win back some of those lost calls on an existing Wix, Squarespace or WordPress site.
- Test on mobile, not desktop. Run your home page through PageSpeed Insights and read the Mobile tab, because that's where your customers are.
- Shrink the hero image. Oversized images are one of the most common reasons a phone stares at a blank screen.
- Cut apps and plugins you've stopped using. Each one can still load whether you remember it or not.
- Put the phone number and a tap-to-call button high on the page, so the first thing that appears is the thing they came for.
- Measure LCP honestly against Google's 2.5 second and 4 second thresholds, then decide whether the Wix vs custom website question is worth revisiting.
Frequently Asked Questions
Is a custom website faster than WordPress or Wix?
Not automatically, but it usually starts with a big advantage: no unused theme code or app stack to load. In our PageSpeed Insights captures, JetBlok scored 92 for mobile Performance and 100 on desktop, with Accessibility 96, Best Practices 100 and SEO 100. The template and builder sites we tested ranged from 43 to 75 for mobile Performance, with LCPs from 5.7s to 12.2s. Overall Performance is a blend, so always check LCP too.
Does website speed affect my Google rankings?
Page experience is one of many signals. Relevance and proximity matter more for local searches. Speed's bigger impact is on people: a slow page loses visitors before they call. Be wary of anyone guaranteeing rankings from a speed fix alone.
What's the difference between a lab score and real-world data?
A lab score comes from a controlled test like PageSpeed Insights. Field data (CrUX) comes from real Chrome users over time. Lab is good for spotting and comparing load problems. Field data shows what your visitors actually experience, if you have enough traffic. They don't always match.
Should I move off Wix or Squarespace?
Only if it's holding you back. If your mobile LCP is well over 4 seconds, your services are crammed onto one page, or customers struggle to find your number, a rebuild is worth looking at. If your site is fast and bringing in enquiries, you may only need a few tweaks.
How do I check my own website speed?
Go to pagespeed.web.dev, paste in your address and check the Mobile tab. Look at LCP first. Or send it to me and I'll run it and explain the results in plain English.
Get a Free Site Review
Still weighing up a custom website vs Wix? Perth tradies and small businesses can send me their site and I'll take a look. I'll run a mobile speed test, check your structure and local SEO basics, and tell you honestly what's worth fixing, even if the answer is "leave it alone" because your builder site is already doing the job.
Call or WhatsApp 0431 242 326, email [email protected] or [email protected], or send your website address through the contact page. JetBlok Studio, ABN 39 822 500 563, is based in Gosnells and builds for tradies and small businesses across Perth WA.
