- Technical SEO removes barriers to access and interpretation.
- GEO builds on many traditional SEO fundamentals.
- Fix critical crawlability, indexability, and canonical issues before minor improvements.
Crawlability and status codes
Important pages should return successful HTTP status codes, provide useful HTML, and avoid unnecessary redirect chains. Broken pages, soft 404s, and blocked resources can reduce crawler confidence.
Indexability signals
Check robots meta, X-Robots-Tag headers, canonical tags, and robots.txt rules. Make sure pages you want discovered are not accidentally marked noindex, canonicalized elsewhere, or blocked from crawling.
Metadata and headings
Every important page should have a descriptive title tag, clear meta description, primary H1, and logical heading structure. These signals help users and machines understand the purpose of the page.
Discovery and structure
Use sitemap.xml, internal links, breadcrumbs, and clean URL structures. On multilingual websites, keep hreflang, canonical, and sitemap URLs consistent with the same final URL structure.
Performance and HTML hygiene
Fast, lightweight, well-structured pages are easier to fetch and process. Use compression, keep HTML size reasonable, reduce unnecessary script load, and fix broken markup where possible.
Checklist
- Verify that important pages return a 200 status.
- Remove incorrect noindex and blocking rules.
- Use one canonical URL format consistently.
- Add a title, meta description, and clear H1.
- Publish sitemap.xml and reference it in robots.txt.
- Add appropriate JSON-LD structured data.
- Check mobile rendering and viewport settings.
- Monitor page size, compression, and response headers.
Implementation order
- Check status codes, redirects, canonical, and robots signals.
- Review titles, descriptions, H1s, and content structure page by page.
- Fix sitemap, hreflang, and structured data errors.
- Repeat performance and HTML hygiene checks regularly.
Frequently asked questions
What should you check first in technical SEO?
First, confirm that important pages return a 200 status, are indexable, and do not have conflicting canonical or robots signals.
Does technical SEO affect AI visibility?
Yes. AI search systems also rely on signals such as crawlable HTML, proper heading structure, sitemaps, and structured data to access and understand content.
How often should technical SEO be checked?
It should be checked regularly and after major changes. Retest after adding new pages, new language versions, design changes, or redirect changes.