# Semrush AI visibility and SEO research

> Developing situation record from CLSTR: https://clstr.news/situations/semrush-ai-visibility-and-seo-research
> Updated: 2026-10-27T19:00:25.000Z. Sources: 4. Developments: 2.

Semrush has released findings through its 2026 AI Visibility Index, indicating that AI search engines distinguish between citations and brand mentions. An analysis of 126 million US prompts revealed that websites can be frequently cited as sources without their brands being explicitly mentioned in the generated text. For instance, in the US finance sector, Investing.com ranked seventh in citations but only 50th in brand mentions.

This divergence suggests that Generative Engine Optimization (GEO) must target both metrics to build authority and brand awareness. Additionally, researchers have raised concerns regarding a potential ‘shadow web’ of content designed specifically for AI agents, which may mirror historical SEO issues like keyword stuffing and cloaking.

## Timeline

### 2026-10-27: Semrush report highlights divergence between AI citations and brand mentions

Semrush research shows AI search engines distinguish between citing a source and mentioning a brand, requiring new optimization strategies.

2 sources. https://clstr.news/cluster/semrush-report-highlights-divergence-between-ai-citations-and-brand-mentions

### 2026-10-22: Semrush and SE Ranking SEO platform comparison

A comparison of SEO and AI visibility tools highlights differences between Semrush and SE Ranking plans, focusing on project limits, keyword tracking, and specialized agency features.

2 sources. https://clstr.news/cluster/semrush-and-se-ranking-seo-platform-comparison

---
Cite as: Semrush AI visibility and SEO research. CLSTR, https://clstr.news/situations/semrush-ai-visibility-and-seo-research