Latest posts
The Princeton Study on GEO: The Scientific Foundation
A study by Princeton, Georgia Tech, and the Allen Institute shows how visibility in AI responses can be increased by up to 115 percent.
ChatGPT, Perplexity & Google AI: An Overview of AI Platforms
ChatGPT, Perplexity, Google AI Mode, Claude, and Gemini operate differently. Who cites which sources and what this means for your GEO strate...
Reference Rate: The Most Important GEO Metric in the AI Era
How often is your brand cited in AI responses? The Reference Rate is the key metric for visibility in ChatGPT, Perplexity, and more.
Understanding AI Crawlers: GPTBot, PerplexityBot, and More
GPTBot, ClaudeBot, PerplexityBot — who crawls your site, how often, and under what rules? A technical overview of the most important AI bots...
Properly Configure robots.txt for AI Crawlers
Allow or Block? Here's how to configure your robots.txt for GPTBot, ClaudeBot, PerplexityBot, and Google-Extended — with ready-made code sni...
Multi-Platform Authority Building: Visible Across All AI Systems
Visibility only in ChatGPT is not enough. Here's how to build authority that consistently reflects in Perplexity, Gemini, Claude, and others...
Citation Patterns: How AI Systems Cite Your Content
Which content is preferred by ChatGPT, Perplexity, and Gemini? Data patterns, structural criteria, and the role of high-quality backlinks.
The 9 Princeton Techniques for GEO in Practice
The 9 GEO techniques from the Princeton study 2023 in concrete application – with effects, tips, and realistic recommendations.
GEO KPIs: What is Truly Measurable in the Age of AI
Reference Rate, AI Mention Frequency, Brand Search Volume: The new GEO metrics to measure visibility in AI responses.
Linkbuilding in the AI Era: More Important Than Ever
Backlinks are not dead in the AI era; they are more important than ever. Why strong link profiles directly contribute to ChatGPT citations.
SE-Ranking Study: Backlinks Drive ChatGPT Citations
An analysis of 129,000 domains shows: The number of referring domains is the most important factor for ChatGPT citations.
Data Assets as Link Magnet: Studies Secure Backlinks
Original studies, tools, and data visualizations are the most effective link magnets in the AI age. How to use data assets as a link buildin...
Industry Relevance for GEO: Associations, Conferences, Trade Publications
Associations, trade media, and conferences provide the most contextually strong backlinks for AI visibility. Here's how to leverage industry...
Backlinks and E-E-A-T: How Linkbuilding Strengthens Trust
E-E-A-T is Google's framework for trust — and backlinks are the most important external signal that measurably strengthens each of the four...
Linkbuilding for SMEs 2026: Scalable Practical Strategy
Medium-sized companies benefit disproportionately from a strong link profile in the GEO era. Our phase plan: what really works in which mont...
Anchor Text Optimization in the AI Era: Best Practices
LLMs read anchor texts with significantly more contextual understanding than traditional algorithms. What defines truly good anchors in 2026...
E-E-A-T: Understanding the Four Pillars of AI Visibility
Experience, Expertise, Authoritativeness, Trustworthiness — what the four pillars really mean, how LLMs measure them, and why Trustworthines...
Schema.org Markup: Introduction to Structured Data
Schema markup makes content explicitly readable for machines — and is a key lever for GEO in 2026. A study shows that structured data can in...
Semantic HTML5: Why It Is Essential for AI Visibility
Why semantic HTML5 is the foundation for AI visibility: elements, common mistakes, refactoring examples. Clear guidance from performanceLieb...
Implementing JSON-LD Schema: 7 Practical Code Examples
Seven JSON-LD snippets for Article, Organization, Person, FAQ, Breadcrumb, Product, and HowTo. Ready to copy-paste, validated. Hamburg linkb...
FAQPage Schema: Direct Path to AI Answers
Properly using FAQPage Schema: structure, best practices, code example, and common mistakes. Hamburg-based linkbuilding agency performanceLi...
Linkbuilding for SaaS Startups: The First 90 Days
How SaaS startups can build a link profile that signals trust and boosts rankings in the first three months — without burning money.
GEO instead of SEO? What Really Changes with ChatGPT-Search
Generative Engine Optimization is more than a buzzword. We show what changes concretely — and what remains the same.
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High-quality backlinks...
... will continue to be an elementary component for good rankings in the years to come. PerformanceLiebe has been a valued contact for link building for over 15 years.
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Experts agree:
Backlinks are important for your ranking
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t3n – digital pioneers
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t3n – digital pioneers
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t3n – digital pioneers
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Semrush.com
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Matt Cutts / Google Search Central
“Links are Google's ranking factor #1”
Christoph Cemper (LRT)
“Yes, backlinks are 100% important for SEO.”
searchenginejournal
“Andrey Lipattsev confirms that Google has only two essential factors. Links and content.”
Google Googler
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Gary Illyes, Chief of Sunshine and Happiness at Google
“Links are particularly important for Google, because that's how we discover the rest of your website.”
John Mueller, Webmaster Trends Analyst at Google
“Backlinks are still one of the most important ranking factors for Google today.”
Matt Cutts / Google Search Central
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MOZ
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