You've written compelling content. You've crafted perfect title tags. You've optimised your images. But here's the uncomfortable truth: if Google can't technically read your website, all that effort is invisible.
Technical SEO sounds intimidating—like something requiring a computer science degree. It's not. For micro-businesses, it's simply a checklist of four core signals that determine whether search engines can find, crawl, and index your pages. Think of it as ensuring your shop door is unlocked and your address is listed correctly before worrying about window displays.
Most small business websites have at least one critical technical issue blocking their visibility. A single "noindex" tag left over from development. A missing sitemap. A robots.txt file accidentally blocking important pages. These aren't complex server configurations—they're simple settings you can check and fix yourself in under an hour.
This guide walks you through validating the four essential technical signals every search engine needs: indexability, sitemap presence, mobile-friendliness, and basic speed. You won't need to touch code (unless you want to). You'll use free Google tools and simple checks that confirm your on-page SEO work won't be wasted.
What You'll Have When Done:
Confirmation that your site is indexed and crawlable, meaning your on-page SEO work won't be wasted.
Time Needed: 25 minutes
Difficulty: Confident
Prerequisites:
Launched Website; Plan Your Website Structure in 30 Minutes
Jump to: Quick Start | Full Guide | Troubleshooting
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Before You Begin:
Technical SEO seems daunting, but much of it is about identifying glaring errors. Not sure you've covered the basics like site speed or indexability? NetNav's Quick Audit checks these crucial technical signals in under 60 seconds.
1. Confirm Your Indexing Status
Open Google and type `site:yourdomain.com` (replace with your actual domain). If you see your pages listed, Google has indexed your site. If you see "did not match any documents," you have a blocking issue.
2. Check for Site-Wide Noindex Tags
Visit your homepage, right-click, and select "View Page Source" (or press Ctrl+U on Windows, Cmd+Option+U on Mac). Press Ctrl+F (Cmd+F on Mac) and search for "noindex". If you find `` in the `
` section, that's blocking your entire site.3. Locate Your Sitemap
Type `yourdomain.com/sitemap.xml` into your browser. If you see an XML file listing your pages, you have a sitemap. If you get a 404 error, you need to generate one (most SEO plugins like Yoast or RankMath do this automatically).
4. Test Mobile-Friendliness
Visit Google's Mobile-Friendly Test, enter your homepage URL, and click "Test URL". Wait for the result. You want to see "Page is usable on mobile."
5. Identify Your Top Priority Fix
Based on the results above, fix the most critical issue first:
You've Completed Quick Start When:
✅ Completed the quick version? Move on to Set Up Google Search Console or continue below for the detailed walkthrough.
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This section walks through each technical signal in detail, explaining what it does, why it matters, and exactly how to validate or fix it.
What it is: Indexability determines whether search engines are allowed to add your pages to their search results. If your site isn't indexable, it's invisible—regardless of content quality.
How to check:
[MEDIA:SCREENSHOT:noindex-tag-check]
Caption: How to quickly check the page source code (Ctrl+U or Cmd+Option+U) for the crucial 'noindex' tag.
Why it matters: A single forgotten noindex tag from your development phase can hide your entire site from Google. This is the most common technical SEO mistake for new websites.
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What it is: A sitemap is an XML file listing all the pages you want search engines to index. It's like handing Google a map of your website instead of making them discover pages by following links.
How to check:
```
```
[MEDIA:SCREENSHOT:sitemap-checker-tool]
Caption: Using an online tool to ensure your sitemap validates correctly and lists all the pages you want indexed.
Next action: Once validated, you'll Submit Your Sitemap to Google through Search Console (covered in the next Blueprint step).
Why it matters: Without a sitemap, Google might miss important pages, especially on larger sites or pages buried deep in your navigation structure.
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What it is: The robots.txt file tells search engines which parts of your site they can and cannot crawl. It's a powerful tool that can accidentally block your entire site if misconfigured.
How to check:
```
User-agent: *
Disallow: /admin/
Disallow: /cart/
Sitemap: https://yourdomain.com/sitemap.xml
```
Manually checking your robots.txt or looking for broken canonicals can be tedious. Remember, this is one of the complex technical checks NetNav runs automatically across your whole site, flagging potential roadblocks instantly.
Why it matters: A single incorrect line in robots.txt can block Google from crawling your entire site, even if everything else is configured perfectly.
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What it is: Google uses mobile-first indexing, meaning it primarily looks at the mobile version of your site when determining rankings. If your site isn't mobile-friendly, you're penalised in search results.
How to check:
[MEDIA:SCREENSHOT:mobile-friendly-result]
Caption: The desired 'Page is usable on mobile' screen from Google's Mobile-Friendly Test.
For deeper mobile optimisation: Read Mobile-First Design Explained Simply for comprehensive mobile design principles.
Why it matters: Over 60% of searches happen on mobile devices. A failed mobile test directly impacts your rankings and user experience.
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What it is: Page speed affects both user experience and search rankings. You don't need a lightning-fast site, but you need to avoid obvious speed killers.
Quick wins to check:
[MEDIA:SCREENSHOT:image-optimization-tool]
Caption: Using TinyPNG to compress images without visible quality loss—often reducing file sizes by 60-70%.
For comprehensive speed optimisation: Follow Improve Your Website Speed for detailed performance improvements.
Why it matters: Google confirmed page speed as a ranking factor. More importantly, 53% of mobile users abandon sites that take over 3 seconds to load.
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What it is: Canonical tags tell Google which version of a page is the "master" when you have similar or duplicate content. This prevents your site from competing against itself in search results.
Common scenarios:
How to check:
For WordPress users: Yoast and RankMath handle canonicals automatically. For custom sites, add canonical tags to your template.
Why it matters: Without proper canonicalisation, Google might index multiple versions of the same page, splitting your ranking power and confusing users about which version to visit.
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What it is: Internal links help Google understand your site structure and discover all your pages. They also pass ranking power from strong pages to weaker ones.
Quick validation:
Basic rules:
For comprehensive internal linking strategy: Read Internal Linking: Connect Your Pages for SEO.
Why it matters: Pages with no internal links pointing to them are called "orphan pages"—Google struggles to find and rank them, even if the content is excellent.
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What it is: Technical SEO isn't a one-time task. Settings can change, plugins can conflict, and updates can break things.
Monthly maintenance checklist:
Quarterly checks:
Annual checks:
You've Completed This Guide When:
🎉 Completed? You've established the core technical requirements for search engines. You're ready for Set Up Google Search Console.
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Common Issues and Fixes:
Problem: My site isn't showing up in the `site:` search at all
Fix: Check for a site-wide "noindex" tag in your page source code (Ctrl+U, then Ctrl+F for "noindex"). In WordPress, go to Settings → Reading and ensure "Discourage search engines from indexing this site" is unchecked. Also check your robots.txt file for `Disallow: /` which blocks everything.
Problem: I don't know where my sitemap is, and the common URLs don't work
Fix: Install an SEO plugin like Yoast SEO (WordPress) or RankMath—both generate sitemaps automatically at `/sitemap.xml`. For Shopify, Wix, and Squarespace, sitemaps are built-in and automatic. For custom sites, use an online sitemap generator like XML-Sitemaps.com.
Problem: Google's Mobile-Friendly Test keeps failing
Fix: 90% of failures are due to text size or button size. Increase your base font size to at least 16px and ensure all clickable elements (buttons, links) are at least 48px × 48px. Check your viewport meta tag is present: ``.
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You've validated the four core technical signals that determine whether Google can find, crawl, and index your website. Your on-page SEO work is no longer wasted—search engines can now properly read and rank your content.
Your next step: Set Up Google Search Console
Google Search Console is the essential monitoring tool that reports exactly how Google sees your site. It confirms your sitemap submission, alerts you to indexing issues, and shows which keywords are driving traffic. It's the natural next step after validating your technical foundation.
For Advanced Technical SEO:
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You've nailed the critical technical foundation of your website. Want to ensure these settings stick and receive proactive warnings if something breaks? Run a full NetNav audit to secure your site's indexing health and get ongoing monitoring of these crucial technical signals.
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