This is an official ODERSA website. Here’s how you know

The official domain

The address of this site ends in odersa.org. Every service the association runs sits on a subdomain of odersa.org and nowhere else. If the address in your browser’s address bar does not end in odersa.org, this site is not ours.

Free, and no account

Everything is open straight away. No sign-up, no account, no password, no subscription, no advertising. Nothing is held back for those who pay, because there is nothing to pay for.

No data collected

This site does not follow you: no tracker, no tracking cookie, no measurement tool built into these pages, and nothing measured on your device. Our host counts requests in aggregate, as any server that answers does: a total, never a profile. You do not have to take our word for it: open your browser’s developer tools, go to the Network tab, and reload the page. You will see the full list of what the site asks for. Everything comes from odersa.org, nothing goes anywhere else.

Free to reuse

The content is published under the CC BY 4.0 license. You may copy it, translate it, print it and pass it on, for your classes as much as for the people around you, on one condition only: credit ODERSA.

A site by ODERSAA nonprofit association under French law (loi 1901) that makes education accessible to everyone, free of charge and with nothing asked in return.

Staying in control of your digital footprint

Clear your browsing history

What you will be able to do In 5 minutes, you'll know how to clear your browser's history, and what still stays elsewhere anyway.

  • Duration: 5 minutes
  • Level: Beginner
  • Free, No account needed
Close-up of a thumb approaching the edge of a phone, not yet touching the screen.

You've visited pages, run searches, filled in fields. The browser, the program that displays websites, keeps a record of all this: it's called the history. Most of the time this is handy, a page found again in two seconds. But sometimes you'd rather that list not be read by someone else who uses the same device. Clearing the history is possible, but it isn't a single skill: you choose a time range, you choose what should disappear, and above all, you understand what this skill really erases, and what it doesn't touch. We're going to practice together, on a browser screen we designed ourselves. Nothing here is real, so nothing can break.

Simulated screen

I practice

This screen was drawn by us. Nothing is sent, nothing is installed, and no real brand is shown.

The situationYou looked up a surprise gift on the family computer, and someone might open it before you.

The interactive exercise needs JavaScript. The written step by step, just below, says exactly the same thing.

The written step by step

The same steps, in words, to read or print. This sheet works even without the exercise.

  1. Find the browser menu

    Your turn Tap whatever opens the browser's own menu, not the menu of the site you're looking at.

    The browser menu hides behind three lines or three stacked dots, at the top of the screen. You tap it first, before anything else.

  2. Open the history

    Your turn In this menu, tap whatever keeps track of pages already visited.

    The word "History", in this menu, opens the list of pages visited recently, with their date and time.

  3. Start the clearing

    Your turn The search you want to hide is from 3 days ago. Tap whatever lets you clear browsing data.

    The "Clear browsing data" button opens the window where you choose the time range and what should disappear.

  4. Choose how far back to clear

    Your turn The search you want to hide is 3 days old. Tap a time range that goes back far enough to cover it.

    "Last 7 days" or "All time" go back far enough to cover a search that's 3 days old.

  5. Spot the box not to check

    Your turn One box, if you check it, will also erase all your saved passwords. Tap it.

    "Saved passwords" is the box to leave alone: checking it signs you out of all your accounts at once.

  6. Confirm the clearing

    Your turn Your choices are made. Tap whatever applies them for real.

    The "Clear data" button applies the time range and boxes you chose, then closes the window on its own.

The sheet to keep

  • The browser menu (three lines or three dots) contains "History", the list of visited pages.
  • Clearing history asks you to choose a time range: an hour, a day, a week, or all time.
  • The "Saved passwords" box is different from the others: checking it signs you out of all your accounts at once.
  • Clearing history cleans up THIS device. Your internet provider and the sites you visited keep their own records, even afterward.
  • Private browsing avoids saving locally while it's active, but it doesn't make you invisible.
  • A moment's doubt before checking a box costs two seconds; regretting it afterward costs much more.

The reflexes in this skill

  1. I stop before I click

    Urgency is the sign of a trap. A message that counts down the hours is trying to stop you from thinking. Putting your phone down for two minutes costs nothing, and it is almost always enough.

  2. One account, one door: every door has its own key

    A password reused everywhere turns one leak into a break in everywhere. A long passphrase for each important account, written down somewhere safe, holds up better than a complicated password used again and again.

The 8 reflexes

Two questions to check

Nothing is graded, and nothing is saved anywhere except in your own browser.

  1. You clear your browser's history on your phone. What can your internet provider still see?

    1. Nothing at all, the clearing affects it too
    2. The sites you've visited, the clearing doesn't change anything on its side
    3. Only the pages that were cleared, not the others
    See the answer

    The sites you've visited, the clearing doesn't change anything on its side

    Clearing the history only affects your device. Your internet provider can still know which sites you've visited, both before and after the clearing.

  2. In the clearing window, a box is called "Saved passwords". What happens if you check it?

    1. Nothing special, it just tidies up the history
    2. You're signed out at once of every account where the browser was recognizing you automatically
    3. It blocks all passwords forever
    See the answer

    You're signed out at once of every account where the browser was recognizing you automatically

    This box erases the sign-in details the browser kept in memory to recognize you automatically. Checking it signs you out of all these accounts at once.

I've done it

Check this box once you can do this skill on your own.

Your progress stays in your own browser.

Keyboard shortcuts

Tab
Move to the next item
Enter or Space
Tap the selected item in the exercise
Escape
Close the settings panel
?
Show this help