Reynier Chua

SEO Services

Web Development



Reynier Chua

SEO Services

Web Development



Blog Post

The Essential Technical SEO Checklist

September 21, 2023 SEO
The Essential Technical SEO Checklist

People often find technical search engine optimization (SEO) as a challenge. Making your way through the technical mumbo jumbo might be intimidating at first. However, you must remember that the digital marketing and SEO world is ever-evolving. Staying ahead of the curve is important for online success. 

While content quality and backlinks often steal the limelight in SEO discussions, technical SEO remains the unsung hero. Ignoring this technical SEO checklist is like having a beautifully designed car with a powerful engine but forgetting to maintain it. Your website may look fantastic, but without a strong technical foundation, it won’t perform as well as it could in search engine rankings. In this article, we’ll explore the importance of technical SEO and delve into a must-do checklist to optimize your website’s core.

The Essence of Technical SEO

Before diving into the nitty-gritty of technical SEO, let’s grasp its essence. Technical SEO involves optimizing your website’s infrastructure, ensuring that search engines are able crawl and index your site. The hidden backbone supports your website’s visibility on search engine results pages (SERPs). Effective technical SEO provides a better user experience, faster page loading times, and increased crawlability, contributing to higher rankings.

Why Technical SEO Matters

  • Crawlability and Indexability: Search engine bots need to crawl and index your website to display it in search results. Technical SEO ensures that your site’s structure and code are easily navigable, enabling bots to crawl every corner of your site efficiently.
  • User Experience: A well-optimized website loads quickly, has a user-friendly design, and functions smoothly. This improves the overall user experience, encouraging visitors to stay a while and engage with your content.
  • Mobile Friendliness: With the growing number of mobile users, Google now prioritizes mobile-friendly websites in its rankings. Technical SEO includes responsive design and other optimizations to cater to mobile users.
  • Page Speed: Slow-loading websites frustrate users and are penalized by search engines. Technical SEO involves minimizing page load times, often through image optimization, minifying CSS and JavaScript, and using Content Delivery Networks (CDNs).
  • Security: Search engines give preference to secure websites that use HTTPS. Technical SEO ensures your website is secure, protecting your visitors and rankings.
  • Structured Data: Marking up your content with structured data (schema markup) helps search engines understand the context of your content, leading to rich results and enhanced SERP listings.

The Must-Do Technical SEO Checklist

Now that we’ve established the importance of technical SEO let’s explore a comprehensive checklist to help you optimize your website’s core effectively.

Technical SEO Checklist

Mobile Optimization

Given the mobile-first indexing approach of search engines, ensuring your website is mobile-responsive is paramount. Test your site’s mobile-friendliness with Google’s Mobile-Friendly Test and address any issues it identifies.

Page Speed

Page speed is a significant ranking factor. Use tools like Google PageSpeed Insights or GTmetrix to assess your site’s speed and follow the recommendations to improve it. Compress images, minify CSS and JavaScript, and leverage browser caching to boost loading times.


The term crawlability is often used in SEO, to make things simple, it’s how search engine like google discover your site. Proper internal link structure may help. You have to make sure that search engine bots can crawl your entire website. Use tools like Google Search Console to identify and fix crawl errors promptly. You must submit a sitemap to help search engines understand your site’s structure.

HTTPS and Security

Implement HTTPS on your website to enhance security and rankings. Acquire an SSL certificate and configure your server to use HTTPS. Regularly update your CMS and plugins to prevent security vulnerabilities.

Structured Data

Implement structured data using schema markup to provide context to search engines about your content. This leads to rich snippets in search results, boosting click-through rates.

XML Sitemap

Create an XML sitemap that includes all important pages of your website. Submit it to Google Search Console to facilitate indexing. Regularly update and maintain the sitemap as you add or remove content.

Robots.txt File

Review and optimize your robots.txt file, this is a powerful tool that informs bots about the parts of your site the search engines can crawl. Ensure that you’re not inadvertently blocking important pages.


Set canonical tags to prevent duplicate content issues. It tells search engines which page version is preferred if there are multiple similar pages.

404 Errors

Regularly monitor your website for 404 errors (page not found). Implement 301 redirects for broken or outdated pages to maintain a smooth user experience and preserve SEO equity.

Image Optimization

Optimize images for web use by trying to compress without sacrificing quality. Use file names and alt tags that make sense so search engines can better understand your images. Also learn about the usage of JPEG vs PNG.

Internal Linking

Create a logical internal linking structure to guide users and search engines through your site. Ensure that important pages receive sufficient internal links.

Mobile Page Speed

Don’t forget to optimize for mobile page speed separately. Mobile users are even more sensitive to slow-loading pages.

Responsive Design

Ensure your website design adapts gracefully to different devices and screen sizes, providing a delightful experience for all users.

Schema Markup

Use schema markup to provide added context to search engines about your content. This can result in enhanced SERP listings, known as rich snippets.


Your website should be accessible to all users, including those with disabilities. Use accessible design principles and provide alt text for images. Take time to learn about web content accessibility guidelines (WCAG).

Regular Audits and Monitoring

Perform regular technical SEO audits using tools like Screaming Frog or SEMrush to identify and address issues promptly. Monitor your website’s performance and rankings to track the impact of your optimizations.

Final Notes to Remember

Technical SEO is the bedrock upon which your website’s success in search engines is built. Neglecting it can result in poor rankings, decreased traffic, and a subpar user experience. By following the must-do checklist outlined in this article, you can ensure that your website’s core is optimized for peak performance in the competitive world of digital marketing. Stay proactive, keep your website technically sound, and watch your search engine rankings soar. 

Remember, technical SEO is not a one-time task, no one can fully optimize it in one go nor can it be optimized forever. People hire SEO professionals because it’s everchanging, an ongoing process that requires your patience, continuous monitoring and improvement to stay ahead in the digital race.

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