ChatGPT vs Perplexity for Research: Which Answer Engine Wins?
Engines ·
A side-by-side look at ChatGPT and Perplexity for buyer research — sourcing, freshness, citation behaviour and what each one means for AEO programmes.
Hertz Blog
Guides, playbooks and explainers on AEO, GEO and AI search optimization across ChatGPT, Perplexity, Claude, Gemini and Grok.
AI Answer Engines: The Complete List for 2026
Engines ·
A reference list of every major AI answer engine in 2026 — ChatGPT, Perplexity, Claude, Gemini, Grok, Copilot, AI Overviews and the emerging challengers.
The AEO Content Brief Template That Wins Citations
Content ·
A reusable brief template for producing AEO content that AI engines actually cite — covering prompt mapping, TL;DR, FAQs, schema and source signals.
How to Track Citations from ChatGPT to Your Website
Measurement ·
A practical guide to detecting and attributing traffic and citations that originate inside ChatGPT — from referrer headers to prompt-level monitoring.
What is Answer Engine Optimization (AEO)?
Fundamentals ·
Answer Engine Optimization (AEO) is the practice of structuring content so AI engines like ChatGPT, Perplexity, Gemini and Google AI Overviews cite your brand in their answers.
How to Rank in ChatGPT: A 2026 Playbook
Engines ·
How to rank in ChatGPT — the entity, content, structured data and third-party source signals that get your brand cited inside ChatGPT answers.
AI Search Traffic Attribution: A Practical Model
Measurement ·
How to build a credible attribution model for AI search traffic when referrers are unreliable, clicks are scarce and the highest-value impressions never produce a session.
AI Search Optimization: The Complete Guide
Fundamentals ·
A practical guide to AI search optimization — what it is, how it works, and how to make AI engines like ChatGPT and Perplexity cite your brand.
How to Rank in Perplexity: The Citation-First Engine
Engines ·
How to rank in Perplexity by earning citations in its answer cards through fresh content, structured data and authoritative third-party sources.
AEO Meaning: What Does Answer Engine Optimization Mean?
Fundamentals ·
AEO stands for Answer Engine Optimization — the discipline of making AI answer engines cite your brand in their generated responses.
How to Rank in Google AI Overviews
Engines ·
How to rank in Google AI Overviews — the SEO-adjacent signals, schema, and content patterns Google's generative results reward.
What is llms.txt? The New Standard for AI Crawlers
Technical ·
llms.txt is a proposed standard that tells AI crawlers which content to use and how to interpret your site — the AI-era equivalent of robots.txt.
How to Rank in Google Gemini
Engines ·
How to rank in Google Gemini answers — entity signals, Knowledge Graph presence, structured data and trusted source coverage.
AEO vs GEO: What's the Difference?
Fundamentals ·
AEO and GEO both describe optimising for AI answer engines. Here's how they overlap, where they differ, and which term to use.
How to Rank in Claude Answers
Engines ·
How to rank in Anthropic's Claude — what Claude retrieves, how it cites, and which signals push your brand into its responses.
AI Brand Visibility Tools: How to Choose One
Tools ·
AI brand visibility tools measure how often AI engines mention your brand. Here is what to look for when evaluating one.
Schema Markup for AI Search: What Actually Helps
Technical ·
Which Schema.org types meaningfully improve AI search visibility, how engines parse them, and the markup patterns to prioritise.
Answer Engine Optimization Services: What They Include
Services ·
AEO services help brands win citations across AI engines. Here is what a complete engagement looks like.
FAQ Schema for AEO: Why It Still Matters
Technical ·
How FAQ schema influences AI citations even after Google reduced FAQ rich results, and how to implement it for maximum AEO impact.
Best AI Visibility Tools in 2026
Tools ·
A buyer's guide to the best AI visibility tools — what to look for, how they differ, and the criteria that actually matter.
llms.txt Best Practices
Technical ·
How to write an llms.txt file that AI engines actually use — structure, content, hosting and common mistakes to avoid.
AI Engine Optimization: A Practical Playbook
Playbooks ·
AI engine optimization is the work of influencing how AI engines describe and recommend your brand. Here is the playbook.
Reddit Strategy for AEO: Earning Citations Without Spamming
Sources ·
How to build Reddit presence that AI engines cite — without breaking subreddit rules or burning brand trust.
What is an Answer Engine Optimization Tool?
Tools ·
An answer engine optimization tool tracks and improves how AI engines cite your brand. Here is what one does and how to evaluate it.
Wikipedia Citations for AI Search
Sources ·
Why Wikipedia is one of the most powerful sources in AI search and how to earn legitimate citations without violating editorial rules.
AI Visibility Tracking Tools: What to Track and Why
Measurement ·
AI visibility tracking tools monitor how AI engines mention your brand. Here are the metrics that matter.
G2 Reviews and AI Visibility
Sources ·
How G2, Capterra and other review platforms shape AI engine recommendations — and how to build review coverage that actually moves citations.
AEO Meaning in Marketing: The New Acquisition Channel
Fundamentals ·
In marketing, AEO means owning the answer that AI engines give to buyer questions — a new acquisition channel for every brand.
AI Citation Tracking: What to Measure and How
Measurement ·
What AI citation tracking actually means, the metrics that matter, and how to build a measurement system that survives model changes.
What is AI SEO Called? The Terms You'll See
Fundamentals ·
AI SEO goes by several names — AEO, GEO, LLMO, AIO. Here is what each term means and which to use.
Share of Voice in AI Search
Measurement ·
What share of voice means in AI search, how it is calculated, and how to use it to prioritise AEO investment.
Generative AI SEO Software: What It Does
Tools ·
Generative AI SEO software helps brands win visibility inside AI-generated answers. Here is what it covers.
Prompt Research for AEO
Measurement ·
How to discover, prioritise and maintain the prompt set that drives your AEO programme.
AI Search Visibility: How to Measure and Grow It
Measurement ·
AI search visibility is the share of AI-generated answers that mention your brand. Here is how to measure and grow it.
AI Content Strategy for 2026
Strategy ·
A content strategy framework built for AI answer engines — structure, formats, freshness and distribution.
Can Claude Search the Internet?
Engines ·
Yes — Claude can search the web. Here is how Claude's web search works and what it means for brand visibility.
Brand Monitoring in AI Engines
Measurement ·
How to monitor brand mentions, sentiment and misrepresentation across ChatGPT, Perplexity, Gemini and others.
Grok Search Engine: What It Is and How It Works
Engines ·
Grok is xAI's AI assistant with real-time search across X and the open web. Here is how Grok search works.
Competitive Analysis in AI Search
Strategy ·
How to benchmark competitors inside AI answer engines and turn the gaps into a prioritised AEO roadmap.
ChatGPT Sources: Where Does ChatGPT Get Its Answers?
Engines ·
ChatGPT pulls answers from training data, live web search and tools. Here is how each source influences what ChatGPT says about your brand.
AI SEO vs Traditional SEO
Fundamentals ·
How AI SEO differs from traditional SEO across goals, tactics, measurement and team structure.
Best GEO Tool: How to Choose a Generative Engine Optimization Platform
Tools ·
The best GEO tool depends on engine coverage, prompt volume, source attribution and how actionable the recommendations are.
Measuring AEO ROI
Measurement ·
How to attribute pipeline and revenue to AEO programmes, with a practical model leadership will believe.
AI SEO Companies: What to Look For
Services ·
AI SEO companies help brands win visibility in AI-generated answers. Here is how to evaluate one.
Enterprise AEO Strategy
Strategy ·
How large organisations structure AEO programmes across brand, product and regional teams.
SaaS AEO Playbook
Strategy ·
A focused AEO playbook for B2B SaaS — prompts, sources and content patterns that drive pipeline.
Ecommerce AEO Strategy
Strategy ·
How ecommerce brands win product recommendations inside ChatGPT, Perplexity and Gemini shopping.
B2B AEO Best Practices
Strategy ·
What B2B brands should do differently from consumer brands when optimising for AI answer engines.
Local Business AEO
Strategy ·
How local and multi-location businesses earn citations inside AI engines that answer 'best near me' style queries.
AI Overview Optimization
Engines ·
Tactical guide to optimising for Google's AI Overviews — structure, snippets, schema and freshness.
Perplexity Citation Strategy
Engines ·
How to earn more citations inside Perplexity answer cards across product, comparison and definition prompts.
ChatGPT Shopping Optimization
Engines ·
How ecommerce brands optimise for ChatGPT's shopping interface and product recommendation prompts.
Structured Data for LLMs
Technical ·
How LLMs consume structured data, which formats matter, and how to deploy them without bloating your site.
Entity SEO for AI Engines
Strategy ·
Why entity SEO is the foundation of AI visibility and how to build an entity footprint engines trust.
Building Topical Authority for AI
Strategy ·
How to build the topical authority AI engines reward, without producing endless low-value content.