Backlink
Updated June 22, 2026 · Reviewed by the Quratic editorial team
Definition
A backlink is an inbound hyperlink from another domain to your site. Search engines treat editorial backlinks as votes of trust and relevance; in GEO, the same pages often enter retrieval corpora that AI answer engines cite — though mention and citation can occur even when links are nofollow.
External trust into your domain
Backlinks remain a core SEO ranking factor: editorial mentions from relevant, trusted sites pass authority to the target URL. Quality beats volume — one link from a respected industry publication outweighs hundreds from unrelated directories.
For GEO, those same referring pages are often retrieval sources. When Perplexity or Google AI Mode answers “best [category] tools,” listicles and reviews with backlinks to your site may name you — whether the link is dofollow or nofollow.
How backlinks differ from AI citations
A backlink is a graph edge between domains. An LLM citation is a user-visible reference inside a generated answer. You can have citations without backlinks (model quotes a PDF or mentions brand from training) and backlinks without AI mentions (linked page not retrieved for category prompts). Track citation rate separately from referring-domain counts.
In Asian markets
Regional media, government directories, and marketplace profiles produce backlinks with uneven follow attributes but strong local trust. Digital PR in Asia should target in-language publications buyers actually read — not only US SEO guest posts.
Example
A brand earns 12 new referring domains from Singapore fintech reviews. Referring-domain score rises; simultaneously, share of voice in Perplexity for “payment API Singapore” improves because those URLs enter the retrieval set.