[SEO](https://ycfdigital.com/en/hizmetler/seo-ajansi) 16 min

# Technical SEO Checklist 2025: 25 Essential Checks for Any Website

Technical SEO forms the foundation of organic search visibility. Use this checklist to identify and fix issues that may be holding your site back.

[Mansur Sarı](https://ycfdigital.com/en/hakkimizda)

Kurucu, YCF Digital · 25 Ekim 2025

## Crawlability & Indexing

Ensure robots.txt isn't blocking important pages, XML sitemap is submitted and up-to-date, and canonical tags are properly implemented.

## Core Web Vitals

Largest Contentful Paint (LCP) under 2.5s, Cumulative Layout Shift (CLS) under 0.1, and Interaction to Next Paint (INP) under 200ms.

## Site Architecture

Flat URL structure with logical hierarchy. Every important page should be reachable within 3 clicks from the homepage.

## Mobile Optimization

Google uses mobile-first indexing. Test your site on real devices, not just Chrome DevTools.

## Structured Data

Implement Organization, BreadcrumbList, Product, FAQ, and Article schema where appropriate.

## Security & HTTPS

Full HTTPS implementation with no mixed content warnings. HSTS headers for additional security.

## International SEO

Proper hreflang implementation for multilingual sites. Each language version should have unique, localized content.

## Frequently Asked Questions

### How often should I run a technical SEO audit?

Comprehensive audits quarterly, with monthly monitoring of key metrics like crawl errors, Core Web Vitals, and indexing status.

### Which tools do you recommend for technical SEO?

Google Search Console (free), Screaming Frog, Ahrefs, and PageSpeed Insights for Core Web Vitals analysis.

## Related Writing

Shopify SEO: The Complete Optimization Guide for Store Owners

<https://ycfdigital.com/en/blog/shopify-seo-guide>

Google Ads Costs 2025: Real Budget Figures in Turkey

<https://ycfdigital.com/en/blog/google-ads-strategy-guide>

### Need Help With This?

[See the Service →](https://ycfdigital.com/en/hizmetler/seo-ajansi)