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The Content Lab: SEO Strategies Tested on Real Sites

The Content Lab tests SEO strategies on real sites and publishes what works. Browse by pillar, or scroll the full archive below.

Topical Authority

4 articles

Entity-mapped clusters and the structures that earn authority.

AI Content

2 articles

Producing AI-assisted content that ranks and reads human.

AI Search

7 articles

Winning visibility in AI Overviews, ChatGPT, and answer engines.

All articles

AI Search 7 min read

How to Add llms.txt to WordPress, Shopify, or Any Site

How to add llms.txt to your site: step-by-step methods for WordPress, Shopify, static sites, and custom builds, plus how to check it actually works.

Jul 17, 2026 Read
AI Search 7 min read

llms.txt Examples: Real Files From Real Sites (and What to Copy)

Real llms.txt examples from Anthropic, Stripe, Zapier, Supabase, and Cloudflare. See how the files differ, which patterns to copy, and how small yours can be.

Jul 17, 2026 Read
AI Search 8 min read

llms.txt vs robots.txt vs agents.md: Which File Does What?

llms.txt describes your site, robots.txt controls access, and agents.md briefs coding agents. A plain comparison of every AI file, and which ones you need.

Jul 17, 2026 Read
Topical Authority 9 min read

Why Is My Page Not Ranking on Google? A DIY Diagnostic Guide

Your page is not ranking because of one of six fixable causes. Walk through this DIY checklist to find which one, using only free tools.

Jul 16, 2026 Read
AI Search 8 min read

What Is llms.txt? A Practical Guide to the AI Crawler File

llms.txt is a plain-text file that tells AI crawlers what your site is about. Learn what goes inside, see a real example, and decide if you need one.

Jul 14, 2026 Read
Topical Authority 11 min read

What Is Semantic SEO? A Guide to Entities, Topic Clusters, and Schema

Semantic SEO helps Google understand meaning, entities, and intent instead of raw keywords. Learn the entity and topic-cluster tactics that earn rankings.

Mar 28, 2026 Read
Topical Authority 9 min read

What Is SERP Position Zero? How to Win Featured Snippets

Featured snippets sit at SERP position zero, above the first organic result. Learn how Google selects them and how to format content to win position zero.

Mar 28, 2026 Read
AI Search 7 min read

Do Keywords Still Matter for SEO in the AI Era?

Do keywords still matter for SEO? Yes, but the rules changed. Here is how keywords, search intent, and entities work together for Google and AI search.

Jan 24, 2026 Read
AI Content 8 min read

Does Google Penalize AI Content? What Actually Gets You Ranked

Does Google penalize AI content? No. Google rewards helpful content however it is produced and penalizes unhelpful, low-effort pages instead.

Jan 24, 2026 Read
AI Search 8 min read

What Happened in Google's December 2025 Core Update?

The Google December 2025 core update rewarded expert, helpful content and demoted thin AI pages. Here is what changed and how I recover rankings.

Jan 24, 2026 Read
AI Search 9 min read

Do SEO Keywords Still Matter for AI Search in 2026?

SEO keywords still matter for AI search in 2026. Learn how I map keywords to intent and entities so AI Overviews, ChatGPT, and Perplexity cite you.

Jan 24, 2026 Read
AI Content 9 min read

How Do You Scale Content Production Without Losing the Human Voice?

Scaling content production works best as a hybrid model: AI handles research and drafting while humans own strategy, voice, and editing.

Jan 23, 2026 Read
Topical Authority 8 min read

Topic Clusters vs Content Silos: Which Wins in SEO?

Topic clusters beat rigid content silos because they build topical authority through smart internal linking. Here is how I structure them to rank.

Jan 23, 2026 Read

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