Skip to content
All essays
CraftFebruary 18, 202510 min

Technical SEO 2025: Complete Guide to Search Optimization

Master technical SEO. Learn Core Web Vitals, structured data, and search engine optimization.

Ü
Ümit Uz
Mobile & Full Stack Developer

Core Web Vitals

LCP (Largest Contentful Paint)

html
<!-- Optimize LCP -->
<link rel="preload" as="image" href="hero.jpg">

INP (Interaction to Next Paint)

javascript
// Reduce JavaScript execution
// Minimize main thread work
// Use web workers

CLS (Cumulative Layout Shift)

css
/* Reserve space for images */
.hero-image {
  aspect-ratio: 16/9;
  min-height: 400px;
}

Structured Data

json
{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "Article Title",
  "author": {
    "@type": "Person",
    "name": "John Doe"
  },
  "datePublished": "2025-02-17"
}

XML Sitemaps

xml
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>https://example.com/page1</loc>
    <lastmod>2025-02-17</lastmod>
    <priority>1.0</priority>
  </url>
</urlset>

Best Practices

  1. 1Mobile-first: Responsive design
  2. 2Fast loading: Optimize images, minify CSS/JS
  3. 3HTTPS: Secure connection
  4. 4Clean URLs: Descriptive, keyword-rich URLs
  5. 5Internal linking: Link related content

Tools

  • Google Search Console: Monitor performance
  • Lighthouse: Run audits
  • PageSpeed Insights: Measure speed
  • Screaming Frog: Site crawling

Monitor and iterate regularly!

Related essays

Next essay
GraphQL Federation: Microservices Architecture