What Is Technical SEO and Does Your Site Need It?

The SEO nobody talks about

When most people think about SEO, they think about keywords and blog posts. That's on-page SEO, and it matters. But there's an entire layer underneath that determines whether Google can even find, understand, and rank your content properly.

That's technical SEO. It's not glamorous, but it's the foundation everything else is built on.

Site speed

This is the most impactful technical SEO factor for small business websites, and it's the one most sites fail at.

Why it matters:

• Google uses page speed as a ranking factor (confirmed)
• 53% of mobile users leave a site that takes more than 3 seconds to load
• Slow sites convert at a lower rate — every second of delay reduces conversions by about 7%

What to check:

• Run your site through Google PageSpeed Insights
• Look at your Core Web Vitals scores (more on that below)
• Check on a real phone, not just your desktop — that's where most of your visitors are

Common fixes:

• Compress and resize images (this is the #1 culprit for slow sites)
• Remove unused plugins, scripts, and tracking codes
• Use modern image formats (WebP instead of PNG/JPG where possible)
• Enable browser caching
• Use a CDN (Content Delivery Network)

Core Web Vitals

Google's Core Web Vitals are three specific metrics they use to measure user experience:

LCP (Largest Contentful Paint): How quickly the main content of your page loads. Target: under 2.5 seconds.

INP (Interaction to Next Paint): How quickly your site responds when someone clicks or taps. Target: under 200 milliseconds.

CLS (Cumulative Layout Shift): How much stuff moves around while the page loads. You know when you try to tap a button and the page shifts and you hit something else? That's poor CLS. Target: under 0.1.

You can check your Core Web Vitals in Google Search Console under the "Core Web Vitals" report. Fix the red and yellow flags first.

Crawlability

If Google can't crawl your site, it can't rank your site. Simple as that.

What can block Google:

• A misconfigured robots.txt file telling Google not to index your pages
• Pages blocked by noindex tags accidentally
• Broken internal links and 404 errors
• Orphan pages with no internal links pointing to them
• A sitemap that's missing or outdated

What to do:

• Submit an XML sitemap to Google Search Console
• Check your robots.txt file (yourdomain.com/robots.txt)
• Use Google Search Console's URL Inspection tool to see if your important pages are indexed
• Fix any 404 errors or broken links

Schema markup

Schema markup is code you add to your site that helps Google understand what your content is about. For local businesses, the most important types are:

• LocalBusiness schema — your name, address, phone, hours, service area
• Review schema — can display star ratings in search results
• FAQ schema — can show expandable Q&As directly in search results
• Service schema — details about specific services you offer

When done right, schema can give you rich snippets — those enhanced search results with star ratings, business hours, or FAQ dropdowns. They take up more visual space in search results and get higher click-through rates.

Most small business websites have zero schema markup. Adding it is a meaningful competitive advantage.

Mobile-friendliness

Google uses mobile-first indexing, meaning it primarily looks at the mobile version of your site for ranking purposes. If your site isn't mobile-friendly, you're at a serious disadvantage.

Check for:

• Text that's readable without zooming
• Buttons and links that are easy to tap (not tiny or too close together)
• No horizontal scrolling
• Forms that work smoothly on mobile
• Images that resize properly

HTTPS security

Your site should be running on HTTPS (the padlock icon in the browser). Google has confirmed this as a ranking signal, and browsers now show warnings on non-HTTPS sites that scare visitors away.

If your site is still on HTTP, get an SSL certificate installed. Most hosting providers offer them for free.

Does your site need technical SEO?

Yes. Every site does. The question is how much work is needed.

If your site was built in the last couple of years by a competent developer, you might just need a checkup. If it's a 5-year-old WordPress site with 30 plugins, there's almost certainly significant technical debt holding you back.

Every site we build at Prowl is technically optimized from the start — fast, mobile-first, properly structured, with schema markup and clean code. Because the best content and keywords in the world won't help you if Google can't properly crawl and render your site.