<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>GeoStack Blog</title><description>Analysis, guides, and GEO strategy for AI search visibility.</description><link>https://geostack.co/</link><item><title>GEO Trends 2026: What&apos;s Changing in AI Search Visibility</title><link>https://geostack.co/blog/geo-trends-2026.md</link><guid isPermaLink="true">https://geostack.co/blog/geo-trends-2026.md</guid><description>The biggest shifts in AI search visibility this year — from Google&apos;s AI Overviews expansion to Perplexity&apos;s growth and what they mean for your GEO strategy.</description><pubDate>Thu, 25 Jun 2026 00:00:00 GMT</pubDate></item><item><title>Best Free GEO Tools for 2026 — Start AI Search Monitoring at No Cost</title><link>https://geostack.co/blog/best-free-geo-tools.md</link><guid isPermaLink="true">https://geostack.co/blog/best-free-geo-tools.md</guid><description>Free and freemium GEO tools to start monitoring your brand in AI search engines. Compare free tiers from Otterly AI, Trakkr AI, View AI, and more.</description><pubDate>Mon, 22 Jun 2026 00:00:00 GMT</pubDate></item><item><title>Profound vs Otterly AI: Which GEO Tool Is Right for You? (2026)</title><link>https://geostack.co/blog/profound-vs-otterly.md</link><guid isPermaLink="true">https://geostack.co/blog/profound-vs-otterly.md</guid><description>Profound leads our rankings at 9.2/10. Otterly AI sits at #2 with 8.4/10. But the best tool depends entirely on what you need. Here&apos;s a detailed breakdown.</description><pubDate>Mon, 22 Jun 2026 00:00:00 GMT</pubDate></item><item><title>GEO vs SEO: What Actually Matters in 2026</title><link>https://geostack.co/blog/geo-vs-seo-2026.md</link><guid isPermaLink="true">https://geostack.co/blog/geo-vs-seo-2026.md</guid><description>GEO and SEO aren&apos;t competitors — they&apos;re complementary strategies with overlapping fundamentals but different metrics and outcomes. Here&apos;s what practitioners need to know.</description><pubDate>Sat, 20 Jun 2026 00:00:00 GMT</pubDate></item><item><title>How AI Search Optimization Increases Organic Traffic</title><link>https://geostack.co/blog/how-ai-search-optimization-increases-traffic.md</link><guid isPermaLink="true">https://geostack.co/blog/how-ai-search-optimization-increases-traffic.md</guid><description>Learn how Generative Engine Optimization drives measurable organic traffic growth by making your brand visible in AI-powered search engines like ChatGPT, Perplexity, and Google AI Overviews.</description><pubDate>Sat, 20 Jun 2026 00:00:00 GMT</pubDate></item><item><title>How to Choose a GEO Tool: The 2026 Buyer&apos;s Guide</title><link>https://geostack.co/blog/geo-tool-buyer-guide.md</link><guid isPermaLink="true">https://geostack.co/blog/geo-tool-buyer-guide.md</guid><description>Not all GEO monitoring tools are equal. This guide walks through the 7 criteria that matter most when choosing an AI search visibility platform.</description><pubDate>Thu, 18 Jun 2026 00:00:00 GMT</pubDate></item><item><title>ChatGPT Brand Monitoring: Why It Matters and How to Start</title><link>https://geostack.co/blog/chatgpt-brand-monitoring-guide.md</link><guid isPermaLink="true">https://geostack.co/blog/chatgpt-brand-monitoring-guide.md</guid><description>ChatGPT has 900 million weekly active users asking about products and services. If your brand isn&apos;t being cited in those responses, you&apos;re invisible to a massive audience.</description><pubDate>Mon, 15 Jun 2026 00:00:00 GMT</pubDate></item><item><title>Best ChatGPT SEO Tracking Tools in 2026</title><link>https://geostack.co/blog/best-chatgpt-seo-tracking-tools.md</link><guid isPermaLink="true">https://geostack.co/blog/best-chatgpt-seo-tracking-tools.md</guid><description>The definitive list of ChatGPT SEO monitoring tools. Track brand mentions, monitor competitors, and optimize for AI visibility.</description><pubDate>Mon, 15 Jun 2026 00:00:00 GMT</pubDate></item><item><title>Structured Data for GEO: Schema Markup That AI Engines Actually Use</title><link>https://geostack.co/blog/structured-data-for-geo.md</link><guid isPermaLink="true">https://geostack.co/blog/structured-data-for-geo.md</guid><description>Not all schema types matter for AI search visibility. Here are the specific Schema.org types that improve LLM citation rates — and which ones Google says don&apos;t help.</description><pubDate>Fri, 12 Jun 2026 00:00:00 GMT</pubDate></item><item><title>Best Perplexity SEO Tools for Brand Visibility</title><link>https://geostack.co/blog/best-perplexity-seo-tools.md</link><guid isPermaLink="true">https://geostack.co/blog/best-perplexity-seo-tools.md</guid><description>Compare the top tools for tracking and improving your brand visibility in Perplexity AI search results.</description><pubDate>Wed, 10 Jun 2026 00:00:00 GMT</pubDate></item><item><title>Why Use AI Search Monitoring Tools</title><link>https://geostack.co/blog/ai-search-monitoring-tools.md</link><guid isPermaLink="true">https://geostack.co/blog/ai-search-monitoring-tools.md</guid><description>Understand why AI search monitoring is essential for modern brand strategy and how the right tools give you a competitive edge.</description><pubDate>Fri, 05 Jun 2026 00:00:00 GMT</pubDate></item><item><title>How to Improve Brand Visibility in AI Search</title><link>https://geostack.co/blog/improve-brand-visibility-ai-search.md</link><guid isPermaLink="true">https://geostack.co/blog/improve-brand-visibility-ai-search.md</guid><description>A practical playbook for increasing your brand mentions across ChatGPT, Perplexity, and Google AI Overviews.</description><pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate></item></channel></rss>