Technical SEO basics, explained simply
The behind-the-scenes settings that make sure search engines can crawl, understand and index your website.
EvoAstra team14 Nov 2026 · 3 min read- Make sure important pages can be crawled and indexed
- Submit a sitemap and fix errors in Search Console
- Fast, mobile-friendly, secure pages are the baseline
Technical SEO is about making your website easy for search engines to crawl and understand. You do not need to be a developer to understand the basics.
- 1Discovers the link
- 2Crawls the page
- 3Renders and understands
- 4Indexes it
- 5Shows it in results
Crawling and indexing
Search engines follow links to discover pages. A robots.txt file and noindex tags tell them what to skip. A common mistake is accidentally blocking the whole site after a redesign.
Sitemaps
An XML sitemap lists your important pages. Submit it in Google Search Console so Google knows what to crawl.
Search Console
Google Search Console shows which pages are indexed, which have problems and which searches bring visitors. Check it monthly.
The baseline
- HTTPS on every page
- Mobile-friendly layout
- Fast loading, measured by Core Web Vitals
- Clean URLs and working redirects
- No duplicate versions of the same page
- Robots.txt correct
- Sitemap submitted
- HTTPS everywhere
- Mobile-friendly
- Redirects working
- No broken links
Structured data
Schema markup helps search engines understand things like your business details, products, FAQs and articles, and can make your results richer.
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