SEO articles
Technical SEO, content and rankings, from real projects.
Google Ads articles
Search, Shopping and Performance Max campaigns that pay for themselves.
Emailing articles
Cold email, deliverability and sequences that get replies.
GEO articles
Generative engine optimization: what is proven, what is not.
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SEO KPIs: Which Metrics Actually Matter
Read the article: SEO KPIs: Which Metrics Actually MatterSEO is often criticized as hard to measure. That isn't true — SEO is perfectly measurable. The real problem is that many organizations measure the wrong things. Domain Authority, page…
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Tracking SEO ROI: How to Prove the Business Value of Organic Search
Read the article: Tracking SEO ROI: How to Prove the Business Value of Organic SearchSEO’s biggest weakness in front of leadership is not ROI but ROI communication. Most organizations have no framework to calculate SEO return on investment. When a CMO is asked “what…
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Google Analytics 4 for SEO: What to Track and How
Read the article: Google Analytics 4 for SEO: What to Track and HowGoogle Analytics 4 (GA4) replaced Universal Analytics in July 2023, and many SEO professionals still don’t fully use it for organic analysis. GA4 introduced fundamental changes: event-based tracking instead of…
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Free SEO Tools: Everything Google Gives You
Read the article: Free SEO Tools: Everything Google Gives YouYou don’t need to spend tens of thousands of dollars annually on premium SEO tools to rank a website. Google itself ships a complete free suite that covers the 80…
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How to Create an SEO Strategy from Scratch
Read the article: How to Create an SEO Strategy from ScratchBuilding an SEO strategy from scratch feels overwhelming. Most teams — whether they are launching a first website or overhauling an established presence — don’t know where to start. They…
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SEO for B2B: How to Generate Leads Through Organic Search
Read the article: SEO for B2B: How to Generate Leads Through Organic SearchB2B SEO is fundamentally different from B2C SEO. A consumer brand selling sneakers optimizes for fast decisions, impulse keywords, and high-volume traffic. A B2B software company selling a 50,000-euro annual…
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SEO vs PPC: When to Use Each and How They Work Together
Read the article: SEO vs PPC: When to Use Each and How They Work Together“Should we do SEO or PPC?” is the wrong question. The honest answer is that the two channels solve different problems and the right strategy almost always uses both. PPC…
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How to Choose an SEO Agency (and Spot the Bad Ones)
Read the article: How to Choose an SEO Agency (and Spot the Bad Ones)“We guarantee number 1 rankings in 30 days.” That single sentence tells you the agency is lying. Google does not promise rankings to anyone — including its own employees and…
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How Long Does SEO Take? Realistic Timelines for Real Results
Read the article: How Long Does SEO Take? Realistic Timelines for Real Results“How long will it take to rank?” is the first question every client asks. The answer that disappoints: 4 to 12 months minimum for meaningful results, depending on competition, domain…
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Google Algorithm Updates: A Complete History and What Each One Changed
Read the article: Google Algorithm Updates: A Complete History and What Each One ChangedGoogle’s search algorithm has evolved dramatically since 1998, and understanding the evolution is fundamental to building a sustainable SEO strategy. Most practitioners chase the latest update and miss the lesson…
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Google Core Updates: How to Recover When Your Traffic Drops Overnight
Read the article: Google Core Updates: How to Recover When Your Traffic Drops OvernightA core update rolls out, and you wake up to find your site has lost a meaningful share of organic traffic overnight. Pages that ranked top 5 for 18 months…
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Google Penalties: Manual Actions, Spam Updates, and How to Stay Clean
Read the article: Google Penalties: Manual Actions, Spam Updates, and How to Stay CleanGoogle maintains two separate enforcement mechanisms. Manual actions — where Google’s human review team explicitly penalizes a site after review — and algorithmic enforcement, where the ranking systems automatically devalue…
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Conversion Value Rules and Customer Lifecycle Goals: The Future of Smart Bidding
Read the article: Conversion Value Rules and Customer Lifecycle Goals: The Future of Smart BiddingUnderstanding Conversion Value Rules: Building Blocks of Smart Bidding Conversion value rules represent one of Google Ads’ most powerful yet underutilized features in 2025-2026. These rules allow you to assign…
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Google Ads Budget: Allocation, Seasonality and Progressive Scaling
Read the article: Google Ads Budget: Allocation, Seasonality and Progressive ScalingManaging a Google Ads budget is like piloting a ship: too tight a grip and you miss profitable currents, too loose and you hemorrhage capital into irrelevant traffic. The bridge…
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Google Ads Audiences: In-Market, Affinity, Custom Segments and Combined Segments
Read the article: Google Ads Audiences: In-Market, Affinity, Custom Segments and Combined SegmentsGoogle Ads audience targeting has evolved dramatically over the past few years. Where advertisers once relied solely on keywords and basic demographics, today’s platform offers sophisticated audience segments that identify…
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Customer Match and First-Party Data: CRM Import, Match Rates and Strategy
Read the article: Customer Match and First-Party Data: CRM Import, Match Rates and StrategyFirst-party data has become the competitive advantage in Google Ads. Cookies are disappearing. Third-party tracking is restricted. Privacy regulations multiply across jurisdictions. In this landscape, Customer Match emerges as the…
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Ads Advisor and Agentic Tools: Gemini in Google Ads
Read the article: Ads Advisor and Agentic Tools: Gemini in Google AdsGoogle has fundamentally transformed how advertisers interact with their campaigns. The latest wave of agentic AI tools, powered by Gemini, represents a paradigm shift from passive optimization suggestions to active,…
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Asset Studio, Veo and Imagen 3: AI-Powered Asset Creation
Read the article: Asset Studio, Veo and Imagen 3: AI-Powered Asset CreationIntroduction: The Transformation of Creative Asset Production The advertising landscape has fundamentally shifted. What once required armies of designers, videographers, and creative directors can now be generated within minutes through…
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Advertising in AI Overviews and AI Mode: The New Playing Field
Read the article: Advertising in AI Overviews and AI Mode: The New Playing FieldGoogle’s search landscape has undergone its most profound transformation in decades. The launch and rapid expansion of AI Overviews and AI Mode represent a fundamental shift in how users discover…
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Google Lens and Visual Search: Shopping Ads on a New Surface
Read the article: Google Lens and Visual Search: Shopping Ads on a New SurfaceIntroduction: The Camera Becomes a Search Engine For decades, e-commerce players have optimized for keyboard searches. Type “blue running shoes” into Google, and millions of results appear. But what happens…
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Optimizing Performance Max: Diagnostics, Channel Reporting and Scripts
Read the article: Optimizing Performance Max: Diagnostics, Channel Reporting and ScriptsPerformance Max in 2026: a campaign type that finally talks back Performance Max launched in 2021 as a deliberate trade-off: surrender granular control to Google’s AI, get reach across Search,…
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Demand Gen: Formats, Placements, Maps and Channel Controls
Read the article: Demand Gen: Formats, Placements, Maps and Channel ControlsDemand Gen in 2026: the campaign type that ate Discovery, Video Action, and a slice of paid social Demand Gen is no longer a beta curiosity grafted onto Discovery. It…
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Advanced Demand Gen: Shoppable CTV, Travel Feeds and Format-Level Reporting
Read the article: Advanced Demand Gen: Shoppable CTV, Travel Feeds and Format-Level ReportingGoogle Ads continues to evolve its Demand Gen platform with sophisticated new capabilities designed to bridge the gap between awareness and conversion. The 2026 product roadmap introduces three transformative features:…
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Google App Campaigns: Install, Engagement, Firebase and SKAN
Read the article: Google App Campaigns: Install, Engagement, Firebase and SKANIntroduction: The Era of AI-Driven App Marketing Google App Campaigns have become the backbone of mobile user acquisition in 2025-2026. Since their introduction as Universal App Campaigns (UAC), they’ve evolved…
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One-click unsubscribe is a protocol, not a button
Read the article: One-click unsubscribe is a protocol, not a buttonGoogle requires it of bulk senders. So does Yahoo. Everyone calls it “one-click unsubscribe”, and almost everyone believes it means a link to put in the message. It is a…
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Your DKIM key may be fifteen years old
Read the article: Your DKIM key may be fifteen years oldDKIM signs your messages. It is the only one of the three authentications that survives a forward, the only one Yahoo requires before telling you who complained, and the only…
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SPF: ten DNS lookups, not eleven
Read the article: SPF: ten DNS lookups, not elevenYour SPF record fits on one line. It declares who is allowed to send mail in your name, and it looks like this: v=spf1 include:_spf.google.com include:sendgrid.net include:servers.mcsv.net include:_spf.salesforce.com ~all Four…
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DMARC changed status in May 2026
Read the article: DMARC changed status in May 2026For eleven years DMARC was an informational document. Published in March 2015 as RFC 7489, it had not even gone through the IETF’s standards process: it arrived through the independent…
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Microsoft backed down six days before the deadline
Read the article: Microsoft backed down six days before the deadlineOn 2 April 2025, Microsoft announced that domains sending more than five thousand messages a day to Outlook.com and Hotmail would have to authenticate their mail. SPF, DKIM, DMARC at…
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Yahoo refuses to publish its threshold, and that is information
Read the article: Yahoo refuses to publish its threshold, and that is informationGoogle publishes a threshold: five thousand messages a day. Microsoft publishes the same. Yahoo, asked about its own, answers this: “A ‘bulk’ sender is classified as an email sender sending…
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The only number that decides: 0.30 percent
Read the article: The only number that decides: 0.30 percentOf the dozens of measurements a campaign produces, exactly one decides your future at Gmail. It is not the open, nor the click, nor the bounce. It is the proportion…
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Five thousand messages a day, and you change worlds
Read the article: Five thousand messages a day, and you change worldsThere is an invisible border in email. On one side, an ordinary sender nobody looks at. On the other, a bulk sender, subject to rules that are written down, measured,…
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An ad in the inbox is direct marketing
Read the article: An ad in the inbox is direct marketingFifty million euros for Orange. Three hundred and twenty-five million for Google. Two decisions, two operators, one shared reasoning. And a consequence the market has not yet measured: advertising displayed…
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One hundred and sixty million records, and three breaches
Read the article: One hundred and sixty million records, and three breachesA browser extension. You visit a LinkedIn profile, you click, and the personal phone number appears, along with the work address. One hundred and sixty million records built that way.…
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Nine hundred thousand euros for a missing proof
Read the article: Nine hundred thousand euros for a missing proofOn 15 May 2025 the French data protection authority issued two sanctions on the same day, against two players in the same chain. Nine hundred thousand euros for one, eighty…
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Double opt-in is written in no legal text
Read the article: Double opt-in is written in no legal textA rule has been circulating for twenty years: the GDPR supposedly requires double opt-in, that confirmation message sent after a signup, which you must click to be truly subscribed. We…
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GEO: the five studies that could prove us wrong
Read the article: GEO: the five studies that could prove us wrongWe argue that most of what the market calls GEO is unproven. Here are the five strongest published works that say the opposite, and the conditions that would change our…
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Test GEO on your own site in 30 days: our protocol
Read the article: Test GEO on your own site in 30 days: our protocolNobody can tell you whether GEO works in the abstract. You can measure it on your own site, in thirty days, with a control group and repeated measurements.
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What GEO really costs, and what we refuse to sell
Read the article: What GEO really costs, and what we refuse to sell55 percent of marketers now have a GEO budget line. Not one practitioner surveyed disclosed an amount. Here are our prices, and the list of what we refuse to bill…
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Are the publisher apocalypse numbers honest?
Read the article: Are the publisher apocalypse numbers honest?Minus 58 percent, minus 70 percent, or minus 10 percent? Each camp measures a different thing and uses the same word. How to read the numbers on traffic decline.
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Sixteen percent of the sources AI cites are themselves written by AI
Read the article: Sixteen percent of the sources AI cites are themselves written by AIAn audit of 712 real queries across four engines measures that roughly one cited source in six is generated content. GEO mechanically rewards what degrades the corpus.
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Manipulating AI answers: what works in the lab, what holds up in production
Read the article: Manipulating AI answers: what works in the lab, what holds up in productionInjection attacks work on isolated systems. In production, a testbed of 1,000 black-hat sites measures 99.78 percent neutralization. The real weakness is somewhere else entirely.
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The sources AI prefers are not yours
Read the article: The sources AI prefers are not yoursGenerative engines systematically favor third-party sources over the content you publish on your own site. Your GEO budget is therefore aimed at the wrong place.
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Global brands 73 percent, niche brands 11 percent: GEO democratizes nothing
Read the article: Global brands 73 percent, niche brands 11 percent: GEO democratizes nothingAcross 100,000 answers and 100 brands, three visibility tiers appear from the very first query. A small player does not start at zero. It starts at 11 percent.
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Position bias: your content is not losing on substance, it is losing in the middle
Read the article: Position bias: your content is not losing on substance, it is losing in the middleA model's performance on a piece of information follows a U-shaped curve depending on where it sits in the context. Part of generative visibility is a placement artifact.
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Your GEO tracking tool is measuring noise
Read the article: Your GEO tracking tool is measuring noiseVisibility in generative search is a distribution, not a point. A single measurement, which is exactly what your monthly report contains, demonstrates nothing.
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30.6 percent of AI citations misrepresent their source: the real risk is not absence, it is error
Read the article: 30.6 percent of AI citations misrepresent their source: the real risk is not absence, it is error761,495 citation pairs analyzed: close to a third misrepresent the source they point at. What that means when the misrepresented source is you.
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The GEO market is booming, usage is flat: the gap nobody looks at
Read the article: The GEO market is booming, usage is flat: the gap nobody looks atThe Reuters Institute measures zero growth in chatbot use for news across the United States, the United Kingdom, France and Germany, while 55 percent of marketers open a GEO budget…