Next.js 15 vs WordPress vs Wix: Why Your Website Platform Matters for Local SEO
If your web designer is building your local business website on WordPress or Wix, you're already starting behind. Google measures your website's speed, stability, and responsiveness — and those metrics directly impact where you show up in local search results. Here's what the data says.
Platform Comparison at a Glance
WordPress
- Mobile PageSpeed: 30-65
- 90,000 attacks per minute
- Constant plugin maintenance
- $5,000-15,000 over 3 years
Wix
- Mobile PageSpeed: 40-70
- No technical SEO control
- Platform lock-in
- $3,500-12,000 over 3 years
Next.js 15
- Mobile PageSpeed: 90-100
- Near-zero attack surface
- Built-in SEO & optimization
- $3,000-8,000 over 3 years
Typical local business website built with a basic builder
Modern local business website built with Next.js
Performance: The Metrics Google Actually Measures
Since 2021, Google has used Core Web Vitals as a ranking signal. These aren't vanity metrics — they measure how fast your site loads, how quickly it responds to user interaction, and how stable the layout is while loading. For local businesses competing for Google Local Pack placement, these numbers matter.
Independent testing across hundreds of production websites shows a consistent pattern: Next.js sites outperform WordPress and Wix on every Core Web Vital metric.
| Metric | WordPress | Wix | Next.js 15 |
|---|---|---|---|
| Time to First Byte (TTFB) | 800-2,000ms | 600-1,500ms | 50-200ms |
| Largest Contentful Paint (LCP) | 2.5-4.2s | 2.0-3.5s | 0.8-1.8s |
| First Input Delay (FID) | 100-280ms | 80-200ms | <50ms |
| Cumulative Layout Shift (CLS) | 0.1-0.25 | 0.1-0.20 | <0.05 |
| PageSpeed Score (mobile) | 30-65 | 40-70 | 90-100 |
Why the Gap Is So Large
WordPress generates every page dynamically — each visit triggers database queries and PHP processing before any HTML reaches the browser. Even with caching plugins, the overhead is significant.
Wix relies on heavy JavaScript bundles and a closed architecture. You can't control script loading, lazy-loading behavior, or server-side caching — you're stuck with whatever Wix delivers.
Next.js 15 pre-renders pages at build time (Static Site Generation) or on-demand (ISR), delivering optimized HTML directly. The built-in Image component serves modern formats (WebP, AVIF) at exactly the right size. Code splitting ensures visitors only download the JavaScript they need.
Why This Matters for Local Search Rankings
For local businesses, the connection between website performance and search visibility is direct. Google's page experience signals — anchored by Core Web Vitals — influence where you appear in local search results and whether you make it into the Local Pack (the map results that appear above organic listings).
Over 60% of local searches happen on mobile, where performance gaps between platforms are even more pronounced. A WordPress site scoring 40 on mobile PageSpeed is competing against Next.js sites scoring 95+.
Page Speed (Core Web Vitals)
Google ranking signal since 2021
Next.js scores 90-100; WordPress 30-65; Wix 40-70 on mobile PageSpeed
Mobile Performance
60%+ of local searches are mobile
Next.js auto-optimizes images, code-splits, delivers minimal JS
Schema Markup Control
Powers rich results in Local Pack
Next.js: full control via JSON-LD. Wix: basic only. WordPress: plugin-dependent
Crawlability
Faster indexing = faster rankings
Next.js serves clean HTML. Wix relies on JS rendering. WordPress has plugin bloat
URL Structure
Clean URLs improve click-through
Next.js: fully custom. Wix: limited patterns. WordPress: configurable but theme-dependent
The Local Pack Connection
When two businesses have similar Google Business Profiles, similar review counts, and similar relevance — the one with the faster, more technically sound website gets the edge. Core Web Vitals act as a tiebreaker, and in competitive local markets, tiebreakers decide who shows up on page one.
The Wix Problem: Locked Out of Your Own SEO
Wix markets itself as SEO-friendly, and for basic on-page optimization it's passable. But for local businesses competing in tight markets, the platform's restrictions create a ceiling you can't break through.
Local business website on a builder platform — limited customization, template constraints
What Wix Won't Let You Do
- Customize sitemaps or exclude pages
- Implement advanced schema markup
- Control robots.txt and canonical tags reliably
- Optimize JavaScript loading or caching
- Create fully custom URL structures
- Export your site if you want to leave
What Next.js 15 Gives You
- Built-in Metadata API for programmatic SEO
- Full JSON-LD schema markup control
- Automatic sitemap generation with full control
- Automatic image optimization (WebP, AVIF)
- ISR for real-time content without rebuilds
- Clean HTML output search engines love
The WordPress Problem: Plugin Bloat and Security Risk
WordPress powers over 40% of websites, but that popularity comes with a cost. It's the most attacked CMS on the internet — not because it's poorly built, but because it's an enormous target with an attack surface that grows with every plugin you install.
90,000
attacks per minute on WordPress sites
13,000+
WordPress sites hacked daily
52%
of vulnerabilities from outdated plugins
Real local business website — table-based layout, no mobile optimization, dated design
The average WordPress site runs 20+ plugins, each a potential attack vector. Performance suffers too — every plugin adds database queries, JavaScript, and CSS that visitors have to download. Even with caching plugins (which are themselves plugins), you're fighting the architecture.
A static Next.js site deployed to CDN hosting has essentially zero attack surface. There's no database to inject into, no PHP to exploit, and no plugin backdoors to worry about. Performance is built into the architecture, not bolted on with add-ons.
Security Comparison
For local businesses, a hacked website means lost revenue, damaged reputation, and potential Google penalties. Here's how the three platforms compare on security.
| Factor | WordPress | Wix | Next.js 15 |
|---|---|---|---|
| Attack Surface | Large (plugins, themes, PHP, database) | Closed (managed by Wix) | Minimal (static or serverless) |
| Known Vulnerabilities | 23,000+ in WPScan database | Rare (proprietary platform) | Near zero (static content) |
| Hack Attempts | 90,000 attacks per minute | Platform-managed | No server to attack |
| Required Maintenance | Weekly plugin/core updates | Automatic (no user control) | Optional, as needed |
| Your Control | Full (if you keep up) | None (trust Wix) | Full with minimal risk |
Total Cost of Ownership: 3-Year View
The sticker price of a website build doesn't tell the full story. WordPress and Wix have significant ongoing costs that add up over time — plugins, maintenance, premium themes, and security. Here's the realistic picture.
| Cost Item | WordPress | Wix | Next.js |
|---|---|---|---|
| Hosting (annual) | $120-600 | $192-588 | $0-240 |
| SSL Certificate | $0-100 | $0 (included) | $0 (included) |
| Security Plugins | $100-300/yr | $0 (managed) | $0 |
| SEO Plugins | $0-299/yr | $0 (built-in, limited) | $0 (built-in) |
| Performance Plugins | $50-200/yr | $0 (no control) | $0 |
| Maintenance | $50-200/mo | $0 | $0-50/mo |
| Developer Rate | $50-150/hr | $40-100/hr | $100-200/hr |
3-Year WordPress Cost
$5,000 - $15,000
Build + hosting + plugins + security + maintenance + updates
3-Year Wix Cost
$3,500 - $12,000
Build + subscription + premium apps + design limitations
3-Year Next.js Cost
$3,000 - $8,000
Build + hosting (often free) + minimal maintenance
If Your Designer Uses WordPress or Wix...
Ask them one question: "What's my mobile PageSpeed score going to be?"
If they can't guarantee a score above 90, your local business website is going to load slower, rank lower, and convert fewer visitors than a competitor on Next.js. That's not opinion — it's what the performance data shows across hundreds of real-world sites.
The platform your designer chooses determines your ceiling. WordPress and Wix both require you to fight the platform to get good performance. Next.js delivers it by default.
Red Flags From Your Web Designer
- 1."We'll add caching plugins to speed it up" — You shouldn't need plugins for baseline performance.
- 2."Wix handles all the SEO for you" — It handles the basics. You're locked out of everything else.
- 3."WordPress is what everyone uses" — Popularity doesn't equal performance. 13,000 WordPress sites get hacked every day.
- 4."PageSpeed doesn't really matter" — Tell that to Google. Core Web Vitals are a confirmed ranking signal.
The Verdict
For local businesses building a new website in 2026, Next.js 15 outperforms WordPress and Wix on every metric that matters for search rankings: speed, Core Web Vitals, security, SEO control, and total cost of ownership.
WordPress still makes sense for content-heavy publications with hundreds of posts and non-technical editors. Wix works for personal projects where rankings don't matter. But if your local business depends on showing up in Google search results — and your competitors are moving to modern frameworks — the platform you build on is a strategic decision, not just a technical one.
The best time to build on the right platform is at the start. The second best time is now.
Ready to Outperform Your Competition?
I build local business websites on Next.js that score 90+ on PageSpeed, rank faster, and cost less to maintain than WordPress or Wix. Let's talk about what a modern tech stack can do for your business.
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Jamie Budesky
Full-stack developer specializing in Next.js websites for local businesses in Pennsylvania. I build sites that are fast, secure, and built to rank.