Study first
Review the ideas behind the questions
These notes cover the technical checks that can stop a good page from being found, understood, or shown correctly.
Crawl access and indexing
Technical SEO starts with access. Crawlers need to reach useful pages, but pages that should stay out of search need the right indexing control.
- Robots.txt manages crawler access to URL paths.
- Robots.txt is not the right tool for keeping an HTML page out of Google results.
- Use noindex or access control when a page should not appear in Search.
- Check crawl rules before assuming a page has a content problem.
Signals that clarify page discovery
Sitemaps, internal links, and canonical links help search engines understand which pages matter and which URL should represent duplicate or similar content.
- A sitemap can help Google discover important URLs.
- Internal links help users and crawlers move through the site.
- Canonical links help indicate the preferred URL for similar pages.
- The final choice of canonical URL can still depend on multiple signals.
Technical checks
Technical quality also includes whether pages are secure, usable on mobile devices, and built in a way that gives users a stable experience.
- HTTPS protects data between the browser and the site.
- Mobile usability matters because most people browse on phones.
- Core Web Vitals are one part of page experience.
- Technical checks should support useful content, not replace it.