Technical SEO

Crawl Depth

Quick Definition

Crawl depth is the number of clicks from your homepage to a given page. Pages deeper than 3 clicks tend to be crawled less often and rank less well.

In context

Improve crawl depth by flattening site architecture, building topic hub pages that link to deep content, and using contextual internal links to surface deep pages from authoritative parent pages.

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Related terms

LCP (Largest Contentful Paint)

LCP measures how fast the largest visible element on the page loads. The 'good' threshold is under 2.5 seconds for 75% of users.

Preload

JavaScript Rendering

JavaScript rendering is the process by which search engines (and AI engines) execute a page's JavaScript to expose dynamically generated content for indexing.

Crawl Budget

Crawl budget is the number of URLs Googlebot will crawl on your site in a given timeframe. It only matters for large sites (10,000+ URLs) or sites with crawl waste from parameters.

CLS (Cumulative Layout Shift)

CLS measures unexpected visual movement during page load. The 'good' threshold is under 0.1.

Structured Logging

Structured logging emits log lines in a machine-readable format (JSON, key-value pairs) instead of free-form strings, making them queryable and easier to analyse at scale.

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