STRUCTURED DATA · SEO GLOSSARY
Sitelinks
The sub-links that appear below a brand's main SERP result for navigational queries — generated automatically by Google and influenced by site structure and internal linking.
Definition
Sitelinks are additional links that Google displays below a website's main listing in the SERP for branded or navigational queries (e.g., searching "DeepSEOAnalysis" might show sitelinks to /tools, /pricing, /blog, /mcp). Google generates sitelinks algorithmically based on: the site's internal linking structure (which pages receive the most prominent internal links), the clarity of the site's navigation, and the frequency with which users click to specific sections. Sitelinks can appear as 2–6 text links below the main result, or as a full "sitelinks search box" that lets users search your site directly from the SERP. There is a `Sitelinks Searchbox` Schema.org type that signals to Google that your site has a search function and where to send the search query.
Why it matters for SEO
Sitelinks dramatically increase SERP real estate for branded queries and boost CTR by letting users navigate directly to the most relevant section. They also signal to searchers that your brand is established enough for Google to trust it with extra visibility. Sitelinks can't be manually requested — they are earned through clear site architecture, strong internal linking to key pages, and a well-defined primary domain. The `Sitelinks Searchbox` schema can explicitly request the search box feature, though Google still decides whether to show it.
How DeepSEOAnalysis checks this
The audit checks for `Sitelinks Searchbox` schema on the homepage when a site search function is detected (`/search?q=`, `/search?query=`, or similar). It also flags navigation structures where the primary nav links don't have consistent, descriptive anchor text — a factor in which pages Google selects for sitelinks.
Useful tools and resources
GLOSSARY
Related terms
structured data
Structured Data
Machine-readable annotations added to HTML — usually JSON-LD — that explicitly describe what a page is about to search engines and AI systems.
Read definition →links
Site Architecture
How a website's pages are organised and linked together — affects crawl efficiency, PageRank distribution, and how clearly topical clusters signal to search engines.
Read definition →links
Internal Linking
Links between pages on the same domain that distribute PageRank, establish site hierarchy, and guide crawlers to important content.
Read definition →technical
Breadcrumb Navigation
A secondary navigation trail showing a page's position in the site hierarchy — used for UX, internal linking, and BreadcrumbList schema in SERPs.
Read definition →See how your site scores on Sitelinks.
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