The Sigma Foundry blog
Practical guides for the business side: government contracting, selling online, AI that does real work, and tax and money.
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How to Optimize Your Website for AI Search: A Complete 2026 Guide
Optimizing your website for AI search requires five improvements: verified crawler access, answer-first content rewrites, FAQ and HowTo schema markup, internal link clusters, and regular content freshness. Together, these raise your AI citation rate across Perplexity, Claude, ChatGPT Search, and Google AI Overviews.
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How Does Claude Read Websites? What ClaudeBot Crawls and How to Optimize for It
Claude reads websites through ClaudeBot (user-agent: anthropic-ai), Anthropic's web crawler. ClaudeBot indexes pages for Claude's web search feature and for training data. It favors clean semantic HTML, direct answers in opening paragraphs, entity-clear writing, and pages that are not blocked in robots.txt.
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How to Appear in AI Search Results: A Step-by-Step Guide for 2026
Appearing in AI search results (Perplexity, Claude, ChatGPT, Google AI Overviews) requires three things: crawler access, answer-first content structure, and schema markup. Most sites fail on all three without realizing it. This guide covers the exact steps to audit and fix your visibility in AI-mediated search.
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Schema Markup for AI Search Engines: Which Types Matter and How to Add Them
Schema markup for AI search engines requires five types: FAQPage, HowTo, BreadcrumbList, Article, and Organization. FAQPage and HowTo have the highest AEO impact because they give AI crawlers structured extraction targets. All schema goes in JSON-LD script blocks — not microdata or RDFa.
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How to Get Cited by Perplexity AI: A Practical 5-Step Guide
Getting cited by Perplexity AI requires answer-first content structure, FAQ schema markup, PerplexityBot access in your robots.txt, and topical cluster depth. Perplexity actively weights pages that answer queries directly in the first paragraph and have structured Q&A content for extraction.
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How to Make Your Website Readable by AI Search Engines
Making your website readable by AI search engines like Perplexity, Claude, and ChatGPT requires four structural changes: clean semantic HTML, FAQ and HowTo schema markup, entity-clear writing, and correct crawler permissions in robots.txt. Most sites complete this in a single working day.
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AEO vs SEO: What's the Difference and Which One Matters More in 2026?
AEO (Answer Engine Optimization) targets AI-powered engines like Perplexity, Claude, and ChatGPT Search that synthesize direct answers. SEO targets traditional search engines like Google that rank links. Both matter — but the techniques differ significantly, and AEO is the higher-leverage investment for sites in information-dense niches.
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What Is Answer Engine Optimization (AEO)? The Complete Guide
Answer Engine Optimization (AEO) is the practice of structuring your website content so that AI-powered search engines — Perplexity, Claude, ChatGPT Search, and Google AI Overviews — can extract and cite your content as a direct answer. Unlike traditional SEO, which targets clicks, AEO targets citations.
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15 Days Left: How to Fix Your W-4 Before the April 15 Deadline
15 days left before the April 15 tax deadline. Here are the 3 W-4 mistakes that cost W-2 employees the most — and the 20-minute fix that adjusts your withholding for every paycheck through the rest of 2026.
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4 New Deductions on Your 2025 Tax Return — And How to Claim Every Dollar
The One Big Beautiful Bill Act added four above-the-line deductions to your 2025 return — tips, overtime, car loan interest, and a senior bonus. Most filers will miss at least one. Here's the full breakdown with exact numbers, phase-outs, and how to claim each on Schedule 1-A before April 15.