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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Topic Clusters & Pillar Pages: Build Topical Authority
Read the article: Topic Clusters & Pillar Pages: Build Topical AuthorityMost websites treat content as isolated islands. One post about keywords here, another about backlinks there, no connection, no strategy. Google sees that fragmentation and does not reward it. The…
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301 Redirects and Site Migration: How to Move Your Website Without Losing Your Rankings
Read the article: 301 Redirects and Site Migration: How to Move Your Website Without Losing Your RankingsWhat Redirects Actually Are and Why They Matter A redirect is an instruction that tells a browser and search engines to go to a different URL when someone tries to…
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Canonical Tags & Duplicate Content: How to Avoid SEO Disasters
Read the article: Canonical Tags & Duplicate Content: How to Avoid SEO DisastersDuplicate content is one of the most persistent and misunderstood problems in technical SEO. Google Webmaster Trends Analyst Gary Illyes has stated that roughly 60 percent of the internet is…
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Schema Markup for Beginners: How to Add Structured Data to Your Website
Read the article: Schema Markup for Beginners: How to Add Structured Data to Your WebsiteEvery day, Google processes billions of web pages. For each one, it must figure out what the page is about, what entities it mentions, and how those entities relate to…
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Backlinks Explained: What They Are, Why They Matter, and How They Work
Read the article: Backlinks Explained: What They Are, Why They Matter, and How They WorkBacklinks (also called inbound links or external links) remain one of Google’s top three ranking signals in 2026. Yet most marketers and even some SEOs misunderstand what makes them valuable.…
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Crawl Budget: What It Is, Why It Matters, and How to Stop Wasting It
Read the article: Crawl Budget: What It Is, Why It Matters, and How to Stop Wasting ItCrawl budget is one of those SEO concepts that generates an enormous amount of discussion, most of it unnecessary for most websites. John Mueller from Google has been direct about…
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Site Speed Optimization: A Complete Guide to Making Your Website Fast
Read the article: Site Speed Optimization: A Complete Guide to Making Your Website FastEvery millisecond counts. Deloitte Digital’s “Milliseconds Make Millions” study, published in 2020 and still the reference cited by Google’s web.dev team, found that a 0.1-second improvement in mobile load time…
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Core Web Vitals: What They Are, Why They Matter, and How to Fix Them
Read the article: Core Web Vitals: What They Are, Why They Matter, and How to Fix ThemYour website might have the best content in your industry, but if it takes four seconds to load, shifts around while users try to read it, and freezes for half…
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Header Tags (H1-H6): What Google Says, What Matters, and What Doesn’t
Read the article: Header Tags (H1-H6): What Google Says, What Matters, and What Doesn’tFew SEO topics generate as much outdated advice as header tags. Use exactly one H1 per page. Your H1 must contain your primary keyword. H2s are more important than H3s.…
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Image SEO: How to Optimize Images So Google (and Users) Can Actually Find Them
Read the article: Image SEO: How to Optimize Images So Google (and Users) Can Actually Find ThemMost websites treat images as decoration. A stock photo here, a screenshot there, maybe a logo in the header. The images get uploaded with default camera file names like IMG_4823.jpg,…
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URL Structure for SEO: What Google Actually Cares About (and What It Doesn’t)
Read the article: URL Structure for SEO: What Google Actually Cares About (and What It Doesn’t)SEO tools love flagging URL issues. Too long. Too many slashes. Missing keyword. No hyphens. Every audit seems to surface dozens of URL “problems” highlighted in urgent red. The result…
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Internal Linking: How to Build a Link Structure That Google Loves
Read the article: Internal Linking: How to Build a Link Structure That Google LovesIf you ask most website owners about link building, they immediately think about getting other sites to link to them. External backlinks get all the attention, all the budget, and…
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Google Ads Conversion Tracking: Tags, Micro/Macro and Enhanced Conversions
Read the article: Google Ads Conversion Tracking: Tags, Micro/Macro and Enhanced ConversionsConversion tracking remains the central pivot of any high-performing Google Ads strategy. Without reliable measurement of user actions that generate value, you operate blind. Google’s intelligent bidding algorithms, Data-Driven Bidding…
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Google Tag Manager for Google Ads: Complete Setup and Server-Side Tagging
Read the article: Google Tag Manager for Google Ads: Complete Setup and Server-Side TaggingConversion tracking is the foundation of profitable Google Ads campaigns. Without accurate data on which clicks convert into sales or leads, your optimization efforts become blind guesses. Yet most businesses…
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Consent Mode v2 and GDPR Compliance: Post-Cookie Tracking in 2026
Read the article: Consent Mode v2 and GDPR Compliance: Post-Cookie Tracking in 2026The digital advertising landscape undergoes a seismic transformation. Privacy regulations intensify, cookie-based tracking faces unprecedented scrutiny, and businesses must navigate complex consent frameworks while maintaining marketing effectiveness. Google’s Consent Mode…
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Attribution and Offline Conversions: Data Manager API, CRM and Incrementality Testing
Read the article: Attribution and Offline Conversions: Data Manager API, CRM and Incrementality TestingModern digital marketing operates across an increasingly fragmented landscape. Customers engage with your brand across multiple devices, channels, and touchpoints before making a purchase decision. Yet many businesses still rely…
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Cookieless and Privacy Sandbox: What Remains After Topics API’s Demise
Read the article: Cookieless and Privacy Sandbox: What Remains After Topics API’s DemiseThe Unexpected Turn: Privacy Sandbox is Dead On October 17, 2025, Google dropped a bombshell that shook the advertising industry to its core. The search giant announced it was shutting…
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Landing Pages for Google Ads: Quality Score, CRO and Message Match
Read the article: Landing Pages for Google Ads: Quality Score, CRO and Message MatchThe journey from search query to conversion begins with one critical moment: when a user clicks your Google Ads advertisement. Everything changes in that instant. If your landing page fails…
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Google Ads Audit: Complete 50+ Point Checklist Methodology
Read the article: Google Ads Audit: Complete 50+ Point Checklist MethodologyA Google Ads audit is the systematic review of every element within your account that directly impacts campaign performance and return on investment. Without regular audits, accounts accumulate inefficiencies that…
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Smart Bidding Exploration and Flexible ROAS: Bidding in 2026
Read the article: Smart Bidding Exploration and Flexible ROAS: Bidding in 2026Google announced one of the most significant bidding updates in over a decade at Google Marketing Live 2025: Smart Bidding Exploration. This feature represents a fundamental shift in how machine…
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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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Geographic, Schedule and Device Targeting: Adjustments and Exclusions
Read the article: Geographic, Schedule and Device Targeting: Adjustments and ExclusionsUnderstanding Geographic Targeting: The Foundation of Precision Marketing Geographic targeting remains one of the most powerful levers in Google Ads optimization. In 2026, the platform offers sophisticated location-based tools that…
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Google Ads Remarketing: RLSA, Display, Dynamic and Cross-Channel Sequencing
Read the article: Google Ads Remarketing: RLSA, Display, Dynamic and Cross-Channel SequencingIntroduction: Why Remarketing Matters in 2025-2026 Remarketing has evolved from a simple retargeting tactic to a sophisticated, multi-channel strategy that addresses one of digital marketing’s core challenges: converting qualified prospects…
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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…