Technical SEO Checklist for Non-Developers

This checklist gives you the essential technical SEO tasks you can handle yourself, without touching code. You’ll learn what to check, how to fix common issues, and when to call in a developer—all in plain language.

What Is Technical SEO (and Why It Matters)

Technical SEO is the behind-the-scenes work that helps search engines find, crawl, and understand your website. Unlike content or backlinks, it’s not about what you write—it’s about how your site is built and configured. Good technical SEO ensures your pages load fast, are secure, and display correctly on any device. If search engines can’t access or read your site, they won’t rank it well, no matter how good your content is.

You don’t need to be a developer to improve most technical SEO issues. Many fixes are as simple as checking a box in your CMS or uploading a file. This guide walks you through the most impactful tasks you can do yourself, with clear instructions for when to ask for help.

How Search Engines See Your Site

To fix technical SEO issues, it helps to understand the basics of how search engines work. They use automated programs called crawlers (like Googlebot) to discover pages by following links. Once they find a page, they render it (like a browser would) and analyze the content to understand what it’s about. Then they store it in an index—a giant database of web pages. When someone searches, the search engine pulls relevant pages from this index.

If your site has technical problems—like broken links, slow load times, or confusing navigation—crawlers might miss pages or misinterpret them. That’s why technical SEO is the foundation of all other SEO efforts. If the crawler can’t reach your page, it can’t rank.

Your DIY Technical SEO Checklist

Here are the most important technical SEO tasks you can do without coding skills. Work through them in order—they build on each other.

1. Check Indexing Status

Open Google Search Console (GSC) and go to the “Pages” report under “Indexing.”
See if your key pages are marked “Indexed” or “Not indexed.”
For pages not indexed, click to see the reason (e.g., “Crawled – currently not indexed”).
If a page is valuable, request indexing by clicking the URL inspection tool and hitting “Request Indexing.”
For pages you don’t want indexed (like thank-you pages), add them to a “noindex” tag—but that requires a developer.

2. Submit a Sitemap

A sitemap is a file that lists all your important pages. It helps search engines discover content faster. Most CMS platforms (WordPress, Wix, Squarespace) generate one automatically. You just need to submit it to Google Search Console:

In GSC, go to “Sitemaps” under “Indexing.”
Enter the URL of your sitemap (usually yourdomain.com/sitemap.xml).
Click “Submit.”

Check back in a few days to see if it reported any errors.

3. Check for Crawl Errors

Google Search Console’s “Crawl errors” report (under “Indexing” > “Pages”) shows pages that returned errors (like 404 Not Found). Fix these by:

If the page has moved, set up a 301 redirect (ask a developer).
If the page is gone forever, let it 404 (that’s fine).
If it’s a temporary issue, request indexing again.

4. Test Mobile-Friendliness

Google uses mobile-first indexing, meaning it looks at your mobile version first. Use Google’s Mobile-Friendly Test tool (just search for it) to see if your pages pass. If they don’t, common fixes include:

Using responsive design (your theme should handle this).
Making sure text is readable without zooming.
Ensuring buttons are large enough to tap.

5. Check Page Speed

Slow pages hurt rankings and user experience. Use Google’s PageSpeed Insights tool—enter your URL and it gives you a score and specific recommendations. Common fixes you can do yourself:

Compress images before uploading (use tools like TinyPNG).
Enable caching (often a plugin or setting in your CMS).
Minify CSS and JavaScript (ask a developer or use a plugin).

6. Look for Duplicate Content

Duplicate content confuses search engines. Use a site: search on Google (e.g., site:yourdomain.com) to see what’s indexed. If you see the same page under different URLs (like example.com/page and example.com/page?ref=123), that’s duplicate. Fix by:

Setting a preferred domain (www vs non-www) in your CMS settings.
Using canonical tags (ask a developer).

7. Check for Mixed Content

If your site is HTTPS (secure), all resources (images, scripts) must also load via HTTPS. Mixed content (HTTP images on an HTTPS page) can cause warnings. Use a free tool like Why No Padlock to check. Fix by updating image URLs to HTTPS—often a simple search-and-replace in your CMS.

Common Problems and How to Fix Them

Even with the checklist above, you’ll run into issues. Here are the most common ones and what to do:

“Crawled – currently not indexed”

This means Google found the page but chose not to index it yet. It’s often because the page is new or has thin content. Wait a week, improve the content, and request indexing again. If it persists, the page may not be valuable enough—focus on better content.

“Duplicate without user-selected canonical”

Google sees two versions of the same page and doesn’t know which to show. This often happens with printer-friendly pages or session IDs. The fix is to add a canonical tag—ask a developer to do this.

404 Errors

Broken links happen. Use a tool like Screaming Frog (free for up to 500 URLs) to find 404s. If the page has a replacement, set up a redirect. If not, leave it—but make sure your 404 page is helpful.

When to Call a Developer

Some technical SEO tasks require coding skills. If you’re not comfortable, it’s worth hiring a professional for:

Implementing structured data (schema markup) for rich snippets.
Setting up 301 redirects at the server level.
Fixing JavaScript rendering issues.
Optimizing server response times.
Creating a custom robots.txt file.

For these, you can prepare by documenting the issue and what you want achieved—that saves time and money.

Tools You Can Use (Free)

You don’t need expensive software to do technical SEO. Here are the essentials:

Google Search Console – indexing, sitemaps, errors.
Google PageSpeed Insights – speed and performance.
Mobile-Friendly Test – mobile usability.
Screaming Frog (free version) – crawl your site for broken links, duplicate content, and more.
Ahrefs Webmaster Tools – free site audit with actionable tips.

These tools give you data, but you still need to interpret and act on it. Start with GSC—it’s the most important.

Costs and Time Investment

Technical SEO doesn’t have to cost money if you do it yourself. The tools above are free, and your time is the main investment. A full audit might take a few hours, but fixing issues is usually quick. If you hire a developer, costs vary widely depending on the complexity—get quotes from a few professionals.

Remember, technical SEO is not a one-time task. Search engines change, and your site evolves. Set a monthly reminder to check GSC and run a quick audit.

Frequently Asked Questions

Do I need to know how to code to do technical SEO?

No. Many tasks—checking indexing, submitting sitemaps, testing mobile-friendliness, and compressing images—are done through dashboards and tools. For coding tasks like redirects or schema, you can hire a developer or use CMS plugins that handle it for you.

How often should I do a technical SEO audit?

At least once a quarter. But check Google Search Console monthly for new errors. If you make major site changes (redesign, migration), do an audit immediately.

What’s the difference between technical SEO and on-page SEO?

Technical SEO is about how your site is built (speed, indexing, mobile-friendliness). On-page SEO is about the content on the page (keywords, headings, meta descriptions). Both are important, but technical is the foundation—if search engines can’t access your site, on-page doesn’t matter.

Can I fix duplicate content myself?

Sometimes. If it’s due to URL parameters (like tracking codes), you can set preferred parameters in Google Search Console. If it’s due to multiple versions of the same page, you’ll need a canonical tag—that’s a developer task.

Is page speed really that important?

Yes. Google uses page speed as a ranking factor, and users abandon slow sites. A one-second delay can reduce conversions. Even small improvements—like compressing images—can make a difference.

What if I use a website builder like Wix or Squarespace?

Most website builders handle technical SEO automatically—they generate sitemaps, use responsive design, and have built-in speed optimization. You still need to check indexing and submit your sitemap in GSC, but many technical issues are already handled for you.

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