Tutorials: learn to use our tools
A short course for each free tool: the key ideas, then the step-by-step with screenshots, and a quick quiz to check.
- Screenshots
- Final quiz
Website3
- Complete website diagnosisComplete website diagnosis: how to read your reportComplete website diagnosis explained: security, speed, Google, e-mail, legal notice and GDPR. Read the A to E grade, your priorities and save the PDF report.BeginnerOpen the tool
- Choose a domain nameDomain names: a tutorial on choosing the right oneDomain names explained: extensions, registries and registrars, how to pick a good name, check that it is free and register it in your own name. Free guide.BeginnerOpen the tool
- Favicon and iconsFavicon tutorial: create your website's iconFavicon: where it shows, why you need several sizes, ICO vs PNG vs SVG, iPhone and Android icons. Then create yours for free from a logo or initials.BeginnerOpen the tool
E-mail2
- DNS lookupDNS tutorial: understand and check your domainDNS explained simply: A, MX, CNAME and TXT records, SPF and DMARC, TTL and propagation. Check where your website and e-mail really go, for free.BeginnerOpen the tool
- E-mail signatureE-mail signature tutorial: create a professional oneE-mail signature: what to include, why the logo must be online, how dark mode changes things, then a step-by-step guide for Gmail, Outlook and Apple Mail.BeginnerOpen the tool
Security and scams4
- Suspicious linkSuspicious link: how to spot a text or e-mail scamSuspicious link in a text or e-mail? Learn to spot scams (fake parcel, fake fine, fake health insurance), read a web address and react the right way.BeginnerOpen the tool
- Stop cold callsCold calls in France: the tutorial to say stopCold calls in France: the 2026 rule, the numbers to recognise, the letter that gets yours removed and the phone settings, explained step by step.BeginnerOpen the tool
- Password checkerStrong password: how to check it and create oneIs your password strong enough? Check it without sending it, see whether it has leaked and create a passphrase that is easy to remember. A free tutorial.BeginnerOpen the tool
- My documentsHow an encrypted vault worksThe passphrase, the vault key and the recovery key explained simply: where your documents are, what the server sees, and the limits.BeginnerOpen the tool
Documents and paperwork1
Photos1
Videos1
Connection and Wi-Fi2
- Connection testInternet speed test tutorial: understand your lineInternet speed test explained simply: Mbit/s vs MB/s, ping, jitter, Wi-Fi or 4G, and the speed you need for video calls. Measure your line for free.BeginnerOpen the tool
- QR codeQR code tutorial: Wi-Fi, contact cards, safe printingWi-Fi, link or contact QR codes: learn how they work, create one for free with no subscription, print a clear notice and spot the fake codes scammers use.BeginnerOpen the tool
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