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.
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.
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.
The content is published under the CC BY 4.0 licence. 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.
Everything that changes on this site, dated and public, including our corrections. The RSS feed lets you follow along without checking back.
2026-08-22
Traffic is now measured in one place only: on odersa.org, the association's own site. Those are real figures, recorded by the host, with no cookie, no tracker and no measurement tool embedded in the pages, which anyone can confirm in the network tab of their own browser. The local figures page is gone and its address redirects. A counter published in seven places is out of date in six.
2026-08-06
The training cases existed only in French and English; they now exist in all seven languages of the site. Spanish, Arabic, Hindi, Bengali and Chinese no longer serve a translated interface on top of an empty library: each language has its own cases, written for its own readers rather than traced over the French. The promise made at launch is kept.
2026-07-31
The legal notice, the privacy statement and the accessibility statement now live on odersa.org, the association's own site, and the footer links to them in all seven languages. The reason is plain: a notice copied onto several sites grows stale on each of them, and a stale notice protects nobody. There is one copy of it now, kept current in one place. The old addresses do not vanish: they redirect to the right page.
2026-07-25
The blog opens with a first edition of articles, in French and English: how to check an image, how to read a percentage, how to spot a fake message, why a rumour spreads. Every claim points to its source, and every source was opened and checked one by one. The blog comes out in editions, like a magazine, so several articles share the same publication date. That is deliberate.
2026-07-23
Every footer page (about, contact, licence, privacy, credits, press kit, legal notice, site map…) now has its own layout and richer content: a 45-minute ready-to-run workshop for teachers, a verifiable collection statement on the Privacy page, a credited photo gallery, the licence in two columns. The site also gains its real visual identity: new icons and a home-drawn sharing image. The teaching content itself doesn't change.
2026-07-21
First publication: the 10 reflexes, the interactive training, the case library in French, the printable booklet, and the interface in 7 languages (français, English, Español, العربية, हिन्दी, বাংলা, 中文). The corpora of languages other than French will grow in waves: follow this journal.