100 Days of Marketing Engineering
Resources, tools & guides from the series.
Everything I use, explain, and recommend throughout the 100 Days of Marketing Engineering series — collected in one place. Practical marketing engineering: tools, AI, automation, SEO, technology, and the workflows behind them.
25 of 100 days published so far. New resources are added as each day goes live.
All Days — Newest First
Audit 1,000 Pages at Once
Checking indexing status page-by-page stops working past a few dozen pages. How Search Console and a crawler close that gap together.
Read Day 25 → Day 24 / 100 WhatsApp · CommercePeople Can Buy Without Leaving WhatsApp
WhatsApp Business catalogs and in-chat checkout compress the whole buying journey into one conversation. Where that actually helps.
Read Day 24 → Day 23 / 100 AI Shopping · Product DataChatGPT Changed How It Picks Products
Shopping questions are increasingly answered inside the chat itself. A data-hygiene checklist for products that actually get surfaced.
Read Day 23 → Day 22 / 100 Automation · Toolsn8n Builds Your Workflow for You Now
n8n connects your marketing apps the way Zapier does, with more control and no per-task pricing ceiling. Where to actually start.
Read Day 22 → Day 21 / 100 LinkedIn · DistributionStop Posting From Your Company Page
LinkedIn's algorithm and audience behavior both favor individual voices over brand pages. A simple way to build the habit.
Read Day 21 → Day 20 / 100 AI AdvertisingYou Can Now Run Ads Inside ChatGPT
Paid placement is starting to show up inside AI assistant answers. What's actually known, and whether it's worth testing yet.
Read Day 20 → Day 19 / 100 GA4 · AI TrafficChatGPT Is Stealing Your Analytics (Sort Of)
A visit that started as a ChatGPT question usually gets misclassified in GA4 as generic Referral or even Direct traffic. Here's where to actually look.
Read Day 19 → Day 18 / 100 AI Crawlers · SEOYour Website Is Hiding From ChatGPT
Many robots.txt files block AI crawlers by accident. A five-minute check to see if your site is actually reachable.
Read Day 18 → Day 17 / 100 WhatsApp · FunnelsYou Don't Need a Landing Page Anymore
Click-to-WhatsApp ads send a click straight into a chat instead of a landing page. When that shortcut helps, and when it doesn't.
Read Day 17 → Day 16 / 100 AI Search · VisibilityChatGPT Might Recommend Your Competitor Instead of You
More buying research now starts in a chat window than a search box. Check whether an AI assistant names you or your competitor first.
Read Day 16 → Day 15 / 100 Google Ads · PPCGoogle Changed Your Ads Without Telling You: AI Max Auto-Upgrades
Google is quietly auto-upgrading Search campaigns to AI Max. Check your account today to see what changed and whether it matters.
Read Day 15 → Day 14 / 100 CRM · AutomationYour CRM Can Google People Now: HubSpot AI Lead Enrichment
HubSpot now auto-enriches every lead with company data, and can answer a custom research question per lead. Stop Googling leads by hand.
Read Day 14 → Day 13 / 100 SEO · Search ConsoleGoogle Is Tracking Your Camera Now: Multimodal Search in Search Console
Google Search Console now reports multimodal (camera-plus-text) search as its own type. Find it, read it, and know who should care.
Read Day 13 → Day 12 / 100 Research · MonitoringYour Competitor Changed Their Offer. Did You Notice?
Track changes to a competitor's headline, pricing, CTA and offer over time, and build a timeline of their marketing moves.
Read Day 12 → Day 11 / 100 Ads · ResearchYour Competitor Is Showing You What Works: Google Ads Transparency Center
Study a competitor's ad variations, headlines, offers and landing page angles in the Google Ads Transparency Center, and spot the messages they keep repeating.
Read Day 11 → Day 10 / 100 Ads · ResearchCompetitors Fund Your Research: Using Meta Ads Library
Study 10 to 20 competitors' ads, hooks and offers in the Meta Ad Library and turn the patterns into a competitor intelligence database.
Read Day 10 → Day 9 / 100 Research · ToolsWhat's Behind Their Website? Analyzing a Competitor's Tech Stack
Discover the CRM, analytics, CMS, chat, ad pixels and automation tools behind a competitor's website to map their marketing infrastructure.
Read Day 9 → Day 8 / 100 Lead Gen · SearchEngineer the Search: Google Search Operators for Lead Generation
site:, intitle:, inurl: and exact-match search turn Google into a lead-generation tool. A practical operators cheat sheet with real query examples.
Read Day 8 → Day 7 / 100 SEO · ResearchRead Your Competitor's Sitemap to Reverse-Engineer Their Content Strategy
A competitor's sitemap.xml shows how they structure their site. Learn to find content gaps and what to ignore.
Read Day 7 → Day 6 / 100 Research · AITurn Your Competitor's 1-Star Reviews into Marketing Research
Your competitor's worst reviews reveal what customers hate, expect, and want fixed. Turn them into ad angles, landing pages, and offers.
Read Day 6 → Day 5 / 100 Tools · Partnerships30+ Marketing Tool Partner Programs Every Agency Should Know
Zapier, HubSpot, Google, Canva and more — real partner programs offering commission, discounts, training, and certification.
Read Day 5 → Day 4 / 100 SEO · AI Searchllms.txt and AI Search: What You Actually Need to Know
What llms.txt actually does, what it doesn't, and what Google has said about it.
Read Day 4 → Day 3 / 100 Tools · MarketingMeme Marketing Made Easier
Using Imgflip to turn a marketing idea into a meme worth publishing.
Read Day 3 → Day 2 / 100 ToolsSchedule Content Across Multiple Social Platforms
How Buffer helps you plan, schedule, and publish social content in one place.
Read Day 2 → Day 1 / 100 IntroductionWhat Is a Marketing Engineer?
The story behind the series and what a Marketing Engineer actually does.
Read Day 1 →