Websites
Price of a showcase site: building a budget item by item
Break down the price of a showcase site: creation, third-party purchases, internal time and maintenance. Compare quotes with a validation matrix.
Read the guideTHE 4SYSTEM BLOG
Websites, customer acquisition and email: practical guides to help you make decisions and check your visitors' journeys.
PRACTICAL ADVICE
Choose a topic to decide next actions and check your web or email traffic.
33 guides available
Websites
Break down the price of a showcase site: creation, third-party purchases, internal time and maintenance. Compare quotes with a validation matrix.
Read the guideWebsites
Compare WordPress with WooCommerce and Shopify by task: customization, payment, production, maintenance and release, with a validation grid.
Read the guideWebsites
Check versions, shared limits, logs and restore. A question grid helps you compare your WordPress hosting.
Read the guideWebsites
Prepare your WordPress migration: freezing of orders, final synchronization, DNS, acceptance testing and rollback without overwriting the new entries.
Read the guideWebsites
Secure a staging WordPress with eight controls: access, data, email, payments, and tasks, then prepare for deployment without overwriting the live database.
Read the guideWebsites
Make your contact form more reliable: useful fields, accessible errors, server proof and pre-production test matrix to guide your checks.
Read the guideWebsites
Organize your showcase site home page with an annotated plan: offers, verifiable evidence, destinations and mobile reading control.
Read the guideWebsites
Organize the menu of your service site: titles, tree structure, accessible submenus and test protocol with a diagnostic grid.
Read the guideWebsites
Distinguish between browser, page, object and CDN caches, set WooCommerce exclusions and validate shopping carts and forms with two isolated sessions.
Read the guideWebsites
Organize WordPress access, check double authentication and prepare for the containment of an incident with a usable register and form.
Read the guideSEO
Identify blockages in a technical SEO audit, prioritize important templates and document each correction with an incident sheet and a acceptance testing.
Read the guideSEO
Distinguish between exploration, indexing and private access. Use a per-URL decision tree, then check robots.txt, noindex, and HTTP headers.
Read the guideSEO
Determine the URLs to include in your XML sitemap: admission table, HTTP and canonical checks, reliable lastmod and tracking in Search Console.
Read the guideSEO
Choose between canonical tag, redirect and noindex, then control URLs and signals with a choice tree and contradiction register.
Read the guideSEO
Organize French and English URLs with a hreflang matrix: reciprocal pairs, choice of x-default and processing of untranslated pages.
Read the guideSEO
Define readable and stable URLs, distinguish filters and UTM, then check canonical, mesh and redirects with a ready-to-use convention.
Read the guideSEO
Identify the source of broken links, distinguish between real 404 and soft 404, then choose between correction, relevant redirection and permanent removal.
Read the guideSEO
Compare HTML source, DOM and rendered Google to check contents, links and API. A method of control with Search Console and a usable table.
Read the guideSEO
Choose Organization, WebPage, Service, and BreadcrumbList for your services site, with a separate entity grid and validation controls.
Read the guideSEO
Prepare the migration of the URLs of your bilingual site with a correspondence table, canonical and hreflang controls, then a acceptance testing per language.
Read the guideSEO
Prioritize your SME's keywords with customer requests, Search Console and SERP reading. Use a backlog with no invented market volume.
Read the guideSEO
Build a useful SEO pillar page: choose the topic, distribute the questions, link the contents and check the file with a concrete map.
Read the guideSEO
Identify overlapping pages with a request/URL matrix, check their functions and choose between retention, differentiation and merge.
Read the guideSEO
Spot outdated information, correct steps, and document your controls to track a SEO item update without jumping to conclusions.
Read the guideSEO
Write a title SEO and a meta-description that matches your page: before/after workshop, checking promises and benchmarks on the Google display.
Read the guideSEO
A grid to choose Google Business Profile categories, distinguish activities and services and check your file after a modification.
Read the guideSEO
Organize a neutral collection of Google opinions and appropriate responses: ready-to-use invitation, processing grid and confidentiality controls.
Read the guideSEO
Distinguish between serviced area and actual establishment. Use a decision grid to create useful local SEO pages without made-up addresses or hours.
Read the guideSEO
Learn how to choose alt text based on the role of images, with a decision tree, populated inventory, and context checks.
Read the guideSEO
Check the access, evidence, and limitations of your answers for AI search, with a how-to sheet and prerequisites documented by Google.
Read the guideAdvertising
Google Ads or SEO: arbitrate according to urgency, state of pages, capacity to process requests and measurement, with a matrix and concrete controls.
Read the guideAdvertising
Choose between exact, expression and broad in Google Ads with a control grid, a professional rental case and a validation method.
Read the guideAdvertising
Write standalone Search titles with a populated grid, illustrated combinations, and controls for length, evidence, and pinning.
Read the guideAdvertising
Choose your Google Ads components based on actual questions, pages and times. A completed inventory and checks to validate each association.
Read the guideAdvertising
Understand the components of the Quality Score Google Ads, check the consistency of request, ad and page, then use a concrete diagnostic sheet.
Read the guideAdvertising
Check your purchases and contact requests in Google Ads: action roles, import GA4, duplicates and validation acceptance testing without actual payment.
Read the guideAdvertising
Verify Performance Max goals, assets, flows and controls with a go/no go grid and markers to read results without confusing signals.
Read the guideAdvertising
Control price, stock, GTIN and variants between Google Shopping flows, product pages and basket with a diagnostic sheet and validation proofs.
Read the guideAdvertising
Compare Google Search and Display based on demand, creatives, targeting and measurement. A table and procedure help you decide when to launch.
Read the guideAdvertising
Decide the role of your brand ads Google Ads: separate queries, check the competition, and prepare for a test with a decision sheet.
Read the guideSocial media
Choose the Meta Ads objectives according to your activity: compare Sales, Leads and Traffic, then check the destination and the business result.
Read the guideSocial media
Compare instant form Meta and landing page with qualification criteria, a CRM acceptance testing and a test based on requests that are actually useful.
Read the guideSocial media
Monitor IDs, triggers and consent between Pixel Meta and Conversions API to diagnose double counted events.
Read the guideSocial media
Read the learning phase Meta Ads with the last modification, signal quality and a grid to maintain, repair or stop your test.
Read the guideSocial media
Prepare a broad audience versus interest test Meta with a comparable offer, qualification criteria and a decision grid without false winners.
Read the guideSocial media
Define a budget Meta Ads with an authorized envelope, spending controls, and stopping rules based on requests and acceptable risk.
Read the guideSocial media
Prepare your Instagram advertisements with visuals adapted to placements, a acceptance testing grid and mobile path control until confirmation.
Read the guideSocial media
Organize LinkedIn for your SME B2B around business questions, authorized evidence and monitoring that distinguishes commitment and qualified demand.
Read the guideSocial media
Structure your professional Instagram profile with a clear presentation, reliable evidence and tested links to guide and process requests.
Read the guideSocial media
Adapt content to social networks with a matrix of questions, formats, evidence and destinations, while maintaining useful rights and limits.
Read the guideCommerce
Prioritize the SEO Shopify with a diagnosis of titles, collections, records, URLs and product data, then check the corrections on the pages served.
Read the guideCommerce
Structure Shopify collections according to your available model, test the rules and write descriptions that really help in choosing products.
Read the guideCommerce
Verify Shopify variants with a acceptance testing of options, images, prices, stock, links and shopping cart so that each choice corresponds to the version sold.
Read the guideCommerce
Design your Shopify meta fields from customer questions, choose reliable values and check their display in the theme and empty cases.
Read the guideCommerce
Compare Shopify themes with your catalog, purchasing tasks and a grid covering edition, accessibility, dependencies, licensing and maintenance.
Read the guideCommerce
Arbitrate Shopify applications with an inventory of needs, access, costs and dependencies, then prepare verified output before deletion.
Read the guideCommerce
Make e-commerce delivery costs and times understandable with precise conditions, a rules map and representative basket tests.
Read the guideCommerce
Clarify your e-commerce returns policy by separating withdrawal, commercial commitments, return and refund, with precise file tracking.
Read the guideCommerce
Prepare multilingual Shopify with a language and market matrix, proofread translations and a acceptance testing for URLs, payment, messages and SEO.
Read the guideCommerce
Manage out-of-stock products based on their actual status with helpful pages, accurate alerts, and consistent availability across cart, markup, and feed.
Read the guideAre your emails arriving as spam? Distinguish refusal, reputation and content, then prepare a documented diagnosis to correct the right flow without changing everything.
Read the guideClean your email list by distinguishing bounces, duplicates and oppositions. Preserve unsubscriptions and test imports before resuming your sendings.
Read the guidePrepare a clear double opt-in: form, confirmation, CRM reports and useful evidence. Test for errors and unsubscription before activation.
Read the guideWrite an email subject and preheader that is faithful to the content. Test their display, missing fields and destination without overinterpreting the openings.
Read the guideBuild a readable newsletter with a clear priority, useful blocks and a precise action. Check images, mobile version and links before sending.
Read the guidePrepare an abandoned cart email with verified authorization, post-purchase exits, and consistent links. Test the scenario before activation.
Read the guideSeparate post-purchase emails according to their purpose. Coordinate orders, delivery, support and promotion, then test returns and marketing objections.
Read the guideDefine inactive subscribers with reliable signals, check exclusions and prepare for limited email reactivation, with a real exit rule.
Read the guideChoose a CRM for your small business by testing requests, rights, imports and exports. Compare tools on a verifiable business journey.
Read the guideFrame your marketing automation with triggers, exclusions and exits. Test for duplicates, late events, and suspension before activating the scenario.
Read the guideMeasurement
Understand the difference between GA4 and Search Console. Choose the right metrics and compare clicks, sessions and pages without forcing the numbers to match.
Read the guideMeasurement
Compare purchases GA4 and Shopify with the correct scopes. Check orders, values, IDs and refunds before changing your collection.
Read the guideMeasurement
Understand marketing attribution and tool gaps. Compare models, windows and interactions without adding up sales or confusing causality.
Read the guideMeasurement
Calculate a conversion rate with the correct units. Distinguish between sessions, requests and qualified contacts, then compare periods without false progress.
Read the guideMeasurement
Prepare a website A/B test with hypothesis, measurement and decision rule. Check assignment, errors and data before declaring a winning version.
Read the guideMeasurement
Use heatmaps and recordings to form hypotheses. Check hiding, collecting, and traversal before interpreting clicks or scrolling.
Read the guideMeasurement
Check consent Google Analytics before choice, after refusal, agreement and withdrawal. Control tags, cookies and network without confusing testing and compliance.
Read the guideMeasurement
Improve your CRO B2B by connecting promise, form and sales processing. Check the quality of requests, accessibility and real support.
Read the guideMeasurement
Measure CRM lead quality with shared statuses and reasons. Connect form, qualification and support without confusing clicks and opportunities.
Read the guideMeasurement
Prepare a 90 day digital marketing plan with priorities, dependencies and controls. Frame resources and decisions without promising traffic or rankings.
Read the guideWebsites
Objective, path, content and measurement: a concrete method to prepare the redesign of a site without being limited to its appearance.
Read the guideLanding page
A helpful landing page connects the original message, offer, and next action. Here are the checks to do before publishing it.
Read the guideObjective, message, links and deliverability: the points to prepare to build a coherent and verifiable email journey.
Read the guideSEO technical
Decide what to do with each URL and check that the reader arrives at relevant content. A redirection must preserve access to useful information.
Read the guideSEO technical
The absence of a page in the results is not enough to know its indexing status. Follow a targeted diagnosis to distinguish lack of access, voluntary exclusion and visibility problem.
Read the guideSEO technical
A good internal link answers a question at the right time. Learn how to choose relationships between pages, name their destinations and check the proposed path.
Read the guideSEO editorial
Before ordering an item, check what the reader wants to accomplish. A method to distinguish the need for information, comparison and purchase, then choose a suitable page and format.
Read the guideSEO editorial
A SEO brief is used to give the writer a clear mission, verifiable information and validation criteria. Here are the useful fields for preparing an article without imposing artificial repetitions.
Read the guideSEO editorial
Local SEO starts with reliable information and correctly represented activity. A method to make the establishment file, the site, the opening hours and the reviews consistent, without creating false locations.
Read the guideGoogle Ads
A first Search campaign must remain readable: a defined offer, coherent ad groups and verified measurement. Here's how to organize this first launch without wasting your resources.
Read the guideGoogle Ads
Excluding a search requires more discernment than a list of supposedly useless terms. A method to identify the off-topic, choose a precise exclusion and preserve relevant requests.
Read the guideGoogle Ads
A budget authorizes an expense, it does not guarantee orders or profitability. Learn to read billing limits and cost indicators before deciding to increase your resources.
Read the guideMeta Ads
Before launching a Meta Ads campaign to new prospects, gather the necessary business decisions, content, and technical controls.
Read the guideMeta Ads
A creative test is used to inform a specific decision. Define what changes, what stays the same, and the data needed before comparing your ads.
Read the guideMeta Ads
Visitor, person who added a product to the cart or recent customer: these signals call for different messages. Organize remarketing without assuming everyone’s intent.
Read the guideOnline stores
A useful product pages allows you to check if an item is suitable before adding it to the basket. Here's how to organize the characteristics, visuals and purchasing conditions without multiplying commercial texts.
Read the guideOnline stores
Categories, filters and sorting do not fulfill the same role. A method to structure the catalog according to buyers' questions, keep their choices visible and check mobile navigation.
Read the guideOnline stores
A basket left without an order does not in itself reveal the cause of departure. Learn to distinguish between hesitation, unexpected costs and technical blockages, then check for a correction before considering a follow-up.
Read the guideMeasurement and analysis
A measurement plan links the actions observed on your site to business decisions. Here's how to choose your GA4 events, specify their triggering and check their reliability without collecting everything.
Read the guideMeasurement and analysis
UTM make campaigns readable if their names and links remain consistent. This guide explains how to build them, test them, and interpret their data without degrading navigation or attribution.
Read the guideMeasurement and analysis
A marketing dashboard helps make decisions. Link your indicators to possible actions, define their calculations and analyze gaps without hasty conclusions.
Read the guideSocial media
An editorial calendar helps you choose what is worth publishing and organize its preparation. Define the subjects, responsibilities and arbitrations according to the means of your team.
Read the guideSocial media
A short script should allow you to understand the offer and see what it does. Prepare lyrics, shots and information to check before shooting.
Read the guideSocial media
Replying to comments is not enough if the requests then get lost. Organize triage, confidentiality, responsibilities and follow-up until a useful response.
Read the guideEmail and CRM
A useful segment allows you to adapt the content sent to the needs of subscribers. Start from their expectations and check your rules without complicating your CRM.
Read the guideEmail and CRM
A welcome sequence provides the expected content and helps the subscriber find their way. Prepare some additional messages and check the conditions that stop the sequence.
Read the guideEmail and CRM
These mechanisms do not have the same role. Learn the difference between sending authorization, signature and control policy, then verify all your services without blocking your legitimate messages.
Read the guideWeb accessibility and performance
A method for identifying obstacles on the keyboard and on mobile, describing anomalies and checking corrections, without confusing these first tests with a complete audit.
Read the guideWeb accessibility and performance
LCP, INP, and CLS measure different aspects of the experience on your site. Learn to read their values, recognize the limitations of a report and prepare a correction based on an identified problem.
Read the guideWeb accessibility and performance
A method for distinguishing format, dimensions and weight, organizing image variants and choosing a loading suitable for product pages, grids and editorial content.
Read the guideDigital project management
A list of pages is not enough to explain what your site should allow. Describe the tasks of the visitors and your team, then the conditions that will allow them to be validated.
Read the guideDigital project management
To choose a CMS, test your team's tasks and clarify access, technical responsibilities, and exit conditions. Its interface and notoriety are not enough to assess whether it suits you.
Read the guideDigital project management
To maintain your site, prepare for restoration, test important functions and define who decides when an incident occurs.
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