What is Technical SEO?

Technical SEO is the optimization of a site's technical side, so that search engines can correctly crawl, index, and rank it.

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#What it includes:

#1. Site structure and URLs

• Human-readable links;
• page hierarchy;
• no duplicates.

#2. The robots.txt file and sitemap.xml

• Managing access for bots;
• Specifying which pages should be indexed.

#3. Correct server response codes

• 200: ok;
• 301: permanent redirect;
• 404: not found;
• 500: server error.

#4. Loading speed optimization

• Image compression;
• minifying JS and CSS;
• using cache and a CDN.

#5. Mobile adaptation

• Responsive design;
• correct display on different devices.

#6. Core Web Vitals

• Render speed (LCP);
• responsiveness to actions (FID/INP);
• layout stability (CLS).

#7. Markup and microformats

• Schema.org;
• Open Graph;
• correct meta tags.

#8. Security

• HTTPS;
• no malicious code.

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In short: technical SEO is the foundation on which content and links are built. Without it, a site can be great, but "invisible" to search engines.