Decide with method

Online purchase guides

Quick answers, then detailed methods for each step: choose a seller, compare an offer, pay, receive, return, terminate or buy internationally.

Choose a checklist according to your shopping situation · Fill in a comparison grid · Understanding the terms of offers

Daily objects illustrating guides to compare and prepare online purchases
Tips adapted to each product type and step of the order.AI-generated illustration.

How to use these contents

Leave your decision, not a promotion

Choose the guide that matches the current blocking point. Each page starts with a synthetic answer, continues with a checklist and ends with useful sources. You can get a marker in a minute or deepen before an important command.

Find a guide by need

14 guide(s) pour Seconde main & reconditionné. Remove filters

Route 01

Identify shop and seller

Control the field, opinions, promises and actors involved in the sale.

Illustration generated by IA.
01

Reliability of a merchant site

Check an online shop

A method of 7 checks to evaluate a merchant site before paying: identity, domain, offer, payment, delivery, returns and reputation.

  • Find a company name, address and consistent means of contact.
  • Control the spelling and apparent seniority of the domain without confusing HTTPS with trust.
  • Read the fees, deadlines, returns and guarantees before opening the payment page.
Read the guide

Check the checklist : Check an online shop

Illustration generated by IA.
02

Market places

Buy on a marketplace

Platform, seller, sender: Learn how to distinguish roles on a marketplace and compare an offer before ordering.

  • Open the seller's profile and read its available contact details.
  • Distinguish seller, platform, sender and payment provider.
  • Compare the conditions attached to the precise offer.
Read the guide

Check the checklist : Buy on a marketplace

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04

Second hand between individuals

Buy from a private seller

Announcement, identity, status, payment and delivery: a concrete method to verify and document a second-hand purchase from an individual.

  • Keep the exchanges in the intended course.
  • Require photos and information about the real object.
  • Test essential functions before delivery.
Read the guide

Check the checklist : Buy between individuals

Route 02

Compare an offer or a contract

Reconciliation of full costs, conditions and services actually included.

Route 03

Choose by product

Check the characteristics that change depending on use, security or delivery.

Illustration generated by IA.
06

Second hand

Second-hand or refurbished

Condition, battery, accessories, warranty and seller: a convenient checklist to compare a used or reconditioned product before purchase.

  • Read the definition of the grade specific to each seller.
  • Identify the professional or special status of the seller.
  • Check battery, accessories, compatibility and locking.
Read the guide

Check the checklist : Used or reconditioned

AI-generated illustration. Framed vignette.
07

Before a new purchase

Repair or replace an appliance

A method for comparing diagnostic, repair estimate, new or reconditioned replacement, cost of use and life uncertainty.

  • Describe the symptom and keep the exact reference.
  • Ask for a quote that separates diagnostics, parts, labour and transport.
  • Compare the same service over the same duration.
Read the guide

Check the checklist : Repair or replace a device

AI-generated illustration. Framed vignette.
13

Books and reading

Choose the right book edition

Identify the edition, language and format of a book before purchase, then compare availability, used status, delivery costs and withdrawal.

  • Keep the exact bibliographic reference.
  • Distinguish language, translation and format.
  • Read the status and exclusions of the occasion.
Read the guide

Check the checklist : Choose the right edition of a book

Need an overview?

The four-step shopping route

The general shopping guide links verification, comparison, marketplace and retention of proofs in a single method.

See the complete method

Frequently Asked Questions

About the guides

Which guide to start before a first purchase?

Start with the store check, then use the total cost comparison guide to split the selected offers.

Do the guides recommend merchants?

No. They provide independent decision-making criteria and refer to the directory to discover several actors without establishing a commercial ranking.

Do legal information replace personalized advice?

No. The pages explain general benchmarks and refer to current public sources to verify the rules applicable to a specific situation.