All articles
SEO, Google Ads, emailing, Meta Ads, GEO and WordPress, newest first.
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.
WordPress articles
WordPress, WooCommerce, the block editor and performance, from real projects.
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One subdomain per stream, on one condition nobody quotes
Read the article: One subdomain per stream, on one condition nobody quotesOne sending subdomain per email stream: M3AAWG advises it only if each stream keeps steady, sufficient volume. Smaller senders can vary the local part instead.
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Two thousand messages a day, and that is all
Read the article: Two thousand messages a day, and that is allGoogle Workspace and Microsoft 365 sending limits: 2,000 messages a day per Workspace user, SMTP relay caps, and Microsoft's tenant rules from September 2026.
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No warm-up schedule has ever been published
Read the article: No warm-up schedule has ever been publishedEmail warm-up schedules: no mailbox provider has ever published one. What Google actually advises, and M3AAWG's six-week figure, the only primary source.
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A rejected message tells you exactly why
Read the article: A rejected message tells you exactly whyEmail bounce codes explained: every rejection carries its cause in three numbers. A 4xx may pass on retry, a 5.1.1 points to your list, a 5.7.x to reputation.
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MTA-STS does not protect what you send
Read the article: MTA-STS does not protect what you sendMTA-STS protects the mail sent to you, not the mail you send. How to publish the DNS record and policy file, the three modes and TLS reporting.
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In May the IETF wrote that nobody uses ARC
Read the article: In May the IETF wrote that nobody uses ARCARC email authentication: meant to rescue mail relayed through lists, it is still experimental, and the IETF's RFC 9989 reads like a verdict of failure.
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Your logo does not depend on you
Read the article: Your logo does not depend on youBIMI logo display does not depend on you: the standard is still a draft, VMC and CMC certificates differ, and Yahoo, Gmail and Apple each decide.
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BIMI requires a setting the standard deleted
Read the article: BIMI requires a setting the standard deletedBIMI and DMARC pct: RFC 9989 removed the pct tag in May 2026, yet BIMI and Google still require pct=100. Omitting it satisfies both. The subdomain trap.
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Google is retiring the indicator everyone watches
Read the article: Google is retiring the indicator everyone watchesGoogle Postmaster Tools v2 drops the domain and IP reputation dashboards, which Google calls slow and misleading. What remains, and the v1 API migration.
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GEO: the five studies that could prove us wrong
Read the article: GEO: the five studies that could prove us wrongGEO, the five studies that could prove us wrong: the strongest published evidence against our position, and the conditions that would change our mind.
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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 protocolTest GEO on your own site in 30 days: our protocol with a control group, a baseline, targeted changes and repeated measurements you can read honestly.
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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 sellWhat GEO really costs: 55% of marketers have a GEO budget yet no practitioner discloses an amount. Our rates, and the GEO services we refuse to bill for.
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AI Content and SEO: What Google Actually Says vs What People Think
Read the article: AI Content and SEO: What Google Actually Says vs What People ThinkAI content and SEO: Google says appropriate AI use is not against its guidelines. It targets low-effort content, whoever wrote it. When AI content works.
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AI Crawlers and Your Content: How to Control What AI Models Access
Read the article: AI Crawlers and Your Content: How to Control What AI Models AccessAI crawlers and your content: training, retrieval and indexing bots need different policies, and robots.txt is only a request. How to set your AI policy.
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Google Search Console: The Complete Guide
Read the article: Google Search Console: The Complete GuideGoogle Search Console guide: setting it up the right way, reading the Performance report, finding index coverage issues, Core Web Vitals and links.
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SEO KPIs: Which Metrics Actually Matter
Read the article: SEO KPIs: Which Metrics Actually MatterSEO KPIs that matter: organic traffic, CTR, average position on high-value queries, organic conversions and revenue, not Domain Authority or backlink counts.
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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 SearchTracking SEO ROI: what counts as SEO spend, how to attribute organic revenue, direct versus assisted conversions, and the payback period to show leadership.
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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 for SEO: how to set it up for organic analysis, the essential reports, custom events and dashboards, and the limits of GA4 for SEO.
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Free SEO Tools: Everything Google Gives You
Read the article: Free SEO Tools: Everything Google Gives YouFree SEO tools from Google: Search Console, Keyword Planner, PageSpeed Insights, Rich Results Test, Trends and GA4 cover most of what a business needs.
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How to Create an SEO Strategy from Scratch
Read the article: How to Create an SEO Strategy from ScratchHow to create an SEO strategy from scratch: a phased plan from baseline audit and goals to keyword research, editorial calendar and budget, new or old site.
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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 SearchSEO for B2B: long buying cycles and buying committees change the game. How to map content to each stage and decision maker and turn organic traffic into leads.
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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 TogetherSEO vs PPC: PPC brings traffic this week while SEO compounds over months. When each makes sense, how their data feed each other and how to avoid conflicts.
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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)How to choose an SEO agency: guaranteed rankings and opaque reports are red flags. The questions to ask, and agency versus in-house versus freelance.
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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 ResultsHow long SEO takes: expect 4 to 12 months for meaningful results, depending on competition, domain authority, content quality and budget. Realistic timelines.
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The Most Expensive Google Ads Mistakes: Diagnosis and Real Cases
Read the article: The Most Expensive Google Ads Mistakes: Diagnosis and Real CasesThe most expensive Google Ads mistakes, from real audits: wrong audiences, broad match bleed, missing negatives, Quality Score traps and broken tracking.
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Google Ads Policy and Suspensions: Sensitive Categories and Appeal Process
Read the article: Google Ads Policy and Suspensions: Sensitive Categories and Appeal ProcessGoogle Ads policy and suspensions: prohibited, restricted and sensitive categories, what triggers a suspension, the appeal process and prevention.
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Query Sculpting: Advanced Shopping Architecture with Priorities and Negatives
Read the article: Query Sculpting: Advanced Shopping Architecture with Priorities and NegativesQuery sculpting for Google Shopping: three duplicate campaigns at high, medium and low priority, with negatives routing each query to the right bid.
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Connected TV Advertising: CTV Campaigns via YouTube and Demand Gen
Read the article: Connected TV Advertising: CTV Campaigns via YouTube and Demand GenConnected TV advertising with Google: YouTube CTV, Demand Gen, shoppable CTV ads, programmatic buying through DV360 and audience targeting on TV screens.
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Advanced Google Ads Reporting: Custom Columns, Dashboards and Looker Studio
Read the article: Advanced Google Ads Reporting: Custom Columns, Dashboards and Looker StudioAdvanced Google Ads reporting: custom columns with spreadsheet functions, saved reports, dashboards, Looker Studio and BigQuery for large accounts.
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Google Ads for E-commerce: Full Funnel Strategy
Read the article: Google Ads for E-commerce: Full Funnel StrategyGoogle Ads for e-commerce, a full funnel strategy: budget split by funnel stage, Shopping and feed quality, Performance Max and campaign KPIs.
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Google Ads for B2B and Lead Generation: Forms, CRM and Long Sales Cycles
Read the article: Google Ads for B2B and Lead Generation: Forms, CRM and Long Sales CyclesGoogle Ads for B2B lead generation: lead form assets, CRM connection, offline conversion imports and bidding for sales cycles that last months.
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Google Ad Grants: $10,000/Month in Free Advertising for Nonprofits
Read the article: Google Ad Grants: $10,000/Month in Free Advertising for NonprofitsGoogle Ad Grants: up to $10,000 a month in free search ads for qualifying nonprofits. Eligibility, the 5% CTR rule, setup requirements and real examples.
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Google Ads Scripts and Automation: Essential Scripts for 2026
Read the article: Google Ads Scripts and Automation: Essential Scripts for 2026Google Ads scripts in 2026: anomaly detection, bid and budget pacing, search query analysis and link checking, the scripts worth running in every account.
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Google Ads A/B Testing: Variations, Experiments and Campaign Mix
Read the article: Google Ads A/B Testing: Variations, Experiments and Campaign MixGoogle Ads A/B testing: custom experiments, ad variations and Campaign Mix Experiments, with step-by-step setup and how to read statistical significance.
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Call Tracking and Migration to Call Assets: 2026 Guide
Read the article: Call Tracking and Migration to Call Assets: 2026 GuideCall tracking in Google Ads: call-only ads stop serving in February 2027. How call assets work, tracking requirements and how to migrate without losing calls.
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Performance Planner and Scenario Planner: Forecasting and Code-Free MMM
Read the article: Performance Planner and Scenario Planner: Forecasting and Code-Free MMMPerformance Planner and Scenario Planner: forecasting Google Ads results from recent data, cross-channel budget scenarios and code-free MMM with Meridian.
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The open rate died in June 2021
Read the article: The open rate died in June 2021The email open rate died in June 2021: Apple's Mail Privacy Protection preloads the tracking pixel, read or not, so an open now measures a delivery.
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One-click unsubscribe is a protocol, not a button
Read the article: One-click unsubscribe is a protocol, not a buttonOne-click unsubscribe under RFC 8058: two headers, an HTTPS address, an anonymous POST with no redirect and a DKIM signature. Without them, no button shows.
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Your DKIM key may be fifteen years old
Read the article: Your DKIM key may be fifteen years oldDKIM key length and algorithms: since RFC 8301, RSA keys under 1024 bits fail and rsa-sha1 is forbidden. Ed25519 comes as a second signature, not a swap.
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SPF: ten DNS lookups, not eleven
Read the article: SPF: ten DNS lookups, not elevenSPF's ten DNS lookup limit: RFC 7208 caps it at ten, counted through every include, and an eleventh returns permerror. Why flattening has a cost.
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DMARC changed status in May 2026
Read the article: DMARC changed status in May 2026DMARC became a Proposed Standard in May 2026: RFCs 9989, 9990 and 9991 replace RFC 7489, the pct tag goes away, and what changes in your records.
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Microsoft backed down six days before the deadline
Read the article: Microsoft backed down six days before the deadlineMicrosoft Outlook sender requirements: it planned to reject non-compliant bulk senders, then chose the junk folder on 29 April 2025, a silent penalty.
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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 informationYahoo sender requirements: no published bulk threshold, so nobody can stay just under it, but a 0.3% complaint limit, DMARC and DKIM from 1024 bits.
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The only number that decides: 0.30 percent
Read the article: The only number that decides: 0.30 percentGmail spam rate threshold: stay below 0.10% and never reach 0.30%. On 50,000 messages, 150 complaints tip you over, and recovery takes seven days.
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Five thousand messages a day, and you change worlds
Read the article: Five thousand messages a day, and you change worldsGmail bulk sender status: send about 5,000 messages a day to personal Gmail accounts and you become a bulk sender for good. What the status imposes.
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An ad in the inbox is direct marketing
Read the article: An ad in the inbox is direct marketingInbox ads are direct marketing: the CNIL fined Orange 50 million euros and Google 325 million for email-like ads in the inbox without consent.
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One hundred and sixty million records, and three breaches
Read the article: One hundred and sixty million records, and three breachesCNIL fines KASPR 240,000 euros over 160 million contacts scraped from LinkedIn: three breaches, including a notice sent four years late and in English.
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Nine hundred thousand euros for a missing proof
Read the article: Nine hundred thousand euros for a missing proofBought email lists and CNIL fines: 900,000 and 80,000 euros on 15 May 2025. The list buyer must prove consent, and supplier contracts do not shift that burden.
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Meta Ads Not Performing? A Real Diagnostic Method
Read the article: Meta Ads Not Performing? A Real Diagnostic MethodMeta ads not performing? A diagnostic method that checks four gates in order: creative, offer and landing page, tracking, then signal volume and audience.
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Meta Ad Policies and Account Bans: Avoid and Recover
Read the article: Meta Ad Policies and Account Bans: Avoid and RecoverMeta ad policies and account bans: how review works, the rules that get accounts disabled, special ad categories, how to avoid a ban and recover on appeal.
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Meta Lead Generation for B2B: The Honest Guide
Read the article: Meta Lead Generation for B2B: The Honest GuideMeta lead generation for B2B: B2B buyers are on Facebook. Instant forms that qualify, optimizing for the deep event, CRM connection and long sales cycles.
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Advantage+ Shopping (ASC): The E-commerce Guide
Read the article: Advantage+ Shopping (ASC): The E-commerce GuideAdvantage+ Shopping campaigns (ASC): the e-commerce guide to catalog setup, the existing customer cap, creative volume, budget and how many campaigns to run.
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Scaling Meta Ads Without Breaking Performance
Read the article: Scaling Meta Ads Without Breaking PerformanceScaling Meta ads without breaking performance: vertical scaling and the 20% rule, horizontal scaling, budget structure and the creative ceiling.
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Meta Learning Phase: How It Really Works
Read the article: Meta Learning Phase: How It Really WorksMeta learning phase: the 50 events per week rule, Learning Limited, what actually resets learning, and why panic edits on day two only restart the clock.
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Meta Bid Strategies: Lowest Cost vs Cost Cap vs ROAS
Read the article: Meta Bid Strategies: Lowest Cost vs Cost Cap vs ROASMeta bid strategies: lowest cost, cost cap, bid cap and ROAS goal, how the auction rewards total value and what each strategy is really for.
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CBO vs ABO on Meta: Which Budget Wins
Read the article: CBO vs ABO on Meta: Which Budget WinsCBO vs ABO on Meta: what each budget setting does, how the algorithm splits money, when ABO is right, when CBO earns its reputation and how to scale.
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Meta Ad Copywriting: What Actually Converts
Read the article: Meta Ad Copywriting: What Actually ConvertsMeta ad copywriting: what converts in primary text, headline and link description, why short copy does not always win and how to front-load the hook.
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Meta Creative Testing: Find Winning Ads
Read the article: Meta Creative Testing: Find Winning AdsMeta creative testing: concept versus iteration, three test structures, the volume you actually need and the signals that predict winning ads.
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UGC for Meta Ads: Why It Works and How to Produce It
Read the article: UGC for Meta Ads: Why It Works and How to Produce ItUGC for Meta ads: why creator content works, what it really costs, how to brief a creator, the myths that waste money and where AI fits.
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Meta Ad Formats: Which One, When, and Why
Read the article: Meta Ad Formats: Which One, When, and WhyMeta ad formats: when to use single image, video, carousel, collection, Reels and Stories, why vertical comes first and the safe zone trap.
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GEO: the five studies that could prove us wrong
Read the article: GEO: the five studies that could prove us wrongGEO, the five studies that could prove us wrong: the strongest published evidence against our position, and the conditions that would change our mind.
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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 protocolTest GEO on your own site in 30 days: our protocol with a control group, a baseline, targeted changes and repeated measurements you can read honestly.
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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 sellWhat GEO really costs: 55% of marketers have a GEO budget yet no practitioner discloses an amount. Our rates, and the GEO services we refuse to bill for.
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Are the publisher apocalypse numbers honest?
Read the article: Are the publisher apocalypse numbers honest?Publisher traffic decline: minus 58%, minus 70% or minus 10%? Each camp measures something different with the same word. How to read AI traffic loss numbers.
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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 AI16% of the sources AI cites are written by AI, per an audit of 712 queries on four engines. Why GEO rewards what degrades the corpus, and what to do.
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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 productionManipulating AI answers: injection attacks work in the lab, but a 1,000-site black-hat testbed shows 99.78% neutralization in production. The real weakness.
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The sources AI prefers are not yours
Read the article: The sources AI prefers are not yoursThe sources AI prefers are not yours: generative engines favor third-party sources over brand sites, so most GEO budgets target 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 nothingGEO democratizes nothing: across 100,000 AI answers, global brands reach 73% visibility and niche brands start at 11%. What it changes for a small business.
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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 middlePosition bias in AI answers: model accuracy follows a U-shaped curve by position in the context, so part of GEO 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 noiseGEO tracking tools measure noise: visibility in AI answers is a distribution, not a point, so one monthly measurement proves nothing. The minimum protocol.
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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 errorAI citations misrepresent their source 30.6% of the time, across 761,495 citation pairs. For a brand, the real GEO risk is not absence but error.
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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 GEO market is booming while usage is flat: the Reuters Institute sees no growth in chatbot use for news, as 55% of marketers open a GEO budget.
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WooCommerce SEO: The Complete Guide to Product and Category Pages
Read the article: WooCommerce SEO: The Complete Guide to Product and Category PagesStructured data, Merchant Center, variations, filters, stock-outs, categories, images and linking: WooCommerce SEO grounded in Google's own documentation.
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WooCommerce Cart and Checkout Blocks: The Migration Guide
Read the article: WooCommerce Cart and Checkout Blocks: The Migration GuideShortcodes or blocks, the Store API, plugin audit, additional checkout fields, step-by-step migration, settings, rollback and the CVE-2025-15033 flaw.
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WooCommerce HPOS: What High-Performance Order Storage Changes and How to Migrate
Read the article: WooCommerce HPOS: What High-Performance Order Storage Changes and How to MigrateHPOS tables, compatibility mode, plugin checks, step-by-step migration, WP-CLI commands, rolling back and the Universal Yums case with ten million records.
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Which PHP Version for WordPress in 2026? Calendar, Testing and Upgrade
Read the article: Which PHP Version for WordPress in 2026? Calendar, Testing and UpgradeWordPress minimum and recommendation, php.net calendar, the WooCommerce PHP 8.1 case, compatibility testing, upgrading with staging, OPcache and JIT.
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WP-Cron vs System Cron: Making WordPress Scheduled Tasks Reliable
Read the article: WP-Cron vs System Cron: Making WordPress Scheduled Tasks ReliableHow WP-Cron fires, why it misses, how to switch to a system cron, Action Scheduler, missed scheduled posts, debugging and monitoring your scheduled tasks.
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WordPress Database Optimization: The Complete Method
Read the article: WordPress Database Optimization: The Complete MethodAutoloaded options, transients, revisions, metadata, WooCommerce sessions and Action Scheduler: clean up your WordPress database without breaking anything.
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Redis Object Cache for WordPress: The Complete Guide
Read the article: Redis Object Cache for WordPress: The Complete GuideThe WordPress object cache, the Site Health recommendation, Redis or Memcached, plugins, configuration, pitfalls and measuring the gain: the complete guide.
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WordPress Block Patterns: Synced Patterns, Overrides and Locking
Read the article: WordPress Block Patterns: Synced Patterns, Overrides and LockingSynced and unsynced patterns, content overrides, WordPress 7 content-only mode, theme registration and a working method for editorial teams.
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Gutenberg vs Page Builders in 2026: Elementor, Divi 5 and Bricks
Read the article: Gutenberg vs Page Builders in 2026: Elementor, Divi 5 and BricksNative editor, Elementor 4, Divi 5 or Bricks: features, page storage, lock-in, real-world performance data and maintenance, to choose wisely in 2026.
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Full Site Editing and theme.json: The Complete Guide
Read the article: Full Site Editing and theme.json: The Complete GuideBlock themes, templates, theme.json version 3, fluid typography, style variations, client locking and migration: a complete guide to Full Site Editing.
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Headless WordPress in 2026: When Decoupling Is Worth It
Read the article: Headless WordPress in 2026: When Decoupling Is Worth ItREST API or WPGraphQL, Next.js or Astro, previews, SEO, security and the cost of two stacks: when headless WordPress pays off, and when to avoid it.
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WordPress Multisite: When to Use It, and When to Avoid It
Read the article: WordPress Multisite: When to Use It, and When to Avoid ItSubdomains or subdirectories, shared users, plugins, backups and migrations: a decision guide to whether a WordPress Multisite network is right for you.