{"id":13557,"date":"2025-07-31T08:49:00","date_gmt":"2025-07-31T06:49:00","guid":{"rendered":"https:\/\/www.blog.bim.finance\/?p=13557"},"modified":"2025-07-30T10:30:35","modified_gmt":"2025-07-30T08:30:35","slug":"dns-vs-ens-pourquoi-un-nom-web3","status":"publish","type":"post","link":"https:\/\/www.blog.bim.finance\/en\/dns-vs-ens-pourquoi-un-nom-web3\/","title":{"rendered":"DNS vs ENS : pourquoi poss\u00e9der un nom de domaine Web3 ?"},"content":{"rendered":"
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Quand vous tapez une adresse comme blog.bim.finance<\/b><\/span> dans votre navigateur, vous passez sans le savoir par un syst\u00e8me appel\u00e9 DNS (Domain Name System)<\/i>.<\/p>

Ce syst\u00e8me agit comme un gigantesque carnet d\u2019adresses, qui traduit les noms de domaine que nous comprenons (comme .com<\/span> ou .fr<\/span>) en adresses IP lisibles par les machines.<\/p>

Le DNS est une infrastructure essentielle. Elle est g\u00e9r\u00e9e par des autorit\u00e9s comme l\u2019ICANN ou des entreprises priv\u00e9es (Google). Vous achetez un nom de domaine traditionnel via un registrar (comme GoDaddy ou OVH). Cependant, vous ne le poss\u00e9dez pas vraiment. Vous le louez, souvent \u00e0 l\u2019ann\u00e9e, selon des conditions impos\u00e9es par des tiers.<\/p>

Cela signifie qu\u2019un nom peut \u00eatre suspendu, censur\u00e9 ou m\u00eame supprim\u00e9 si vous ne respectez pas certaines r\u00e8gles. En clair, votre identit\u00e9 num\u00e9rique d\u00e9pend de structures centrales qui peuvent changer les r\u00e8gles du jeu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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ENS : l\u2019identit\u00e9 Web3, en votre possession<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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ENS (Ethereum Name Service) permet l'achat d'un nom de domaine Web3<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\u00c0 l\u2019inverse, l\u2019ENS (Ethereum Name Service<\/strong>) repose sur une infrastructure d\u00e9centralis\u00e9e. Il permet \u00e0 chacun d\u2019enregistrer un nom comme votrenom.eth<\/b><\/span>, directement li\u00e9 \u00e0 une adresse Ethereum. Ce nom agit comme un alias public. Il vous permet de recevoir des cryptomonnaies sans avoir \u00e0 copier une longue suite de chiffres et de lettres, mais aussi d\u2019afficher une identit\u00e9 visible sur de nombreuses applications Web3.<\/p>

Ce nom ENS est un NFT<\/a> : vous en \u00eates donc r\u00e9ellement propri\u00e9taire tant que vous en renouvelez l\u2019enregistrement. Personne ne peut le supprimer ou vous le reprendre sans votre accord. C\u2019est un v\u00e9ritable changement de paradigme. Votre nom devient votre propri\u00e9t\u00e9 num\u00e9rique, directement inscrite sur la blockchain.<\/p>

Mais un nom ENS ne sert pas uniquement \u00e0 recevoir des paiements. Il peut aussi vous identifier sur des r\u00e9seaux sociaux d\u00e9centralis\u00e9s comme Farcaster ou Lens, h\u00e9berger un site web sur IPFS<\/a> ou devenir un badge de r\u00e9putation dans l\u2019univers crypto. En r\u00e9sum\u00e9, c\u2019est \u00e0 la fois une adresse, un pseudo, un portefeuille et une carte d\u2019identit\u00e9 Web3.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Deux visions oppos\u00e9es de l\u2019internet<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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DNS vs ENS : pourquoi avoir un nom de domaine Web3 pourrait tout changer ?<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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La principale diff\u00e9rence entre un domaine DNS classique et un nom ENS r\u00e9side dans le contr\u00f4le. Le DNS appartient aux structures de l\u2019internet Web2, avec ses registres, ses r\u00e8gles, ses interm\u00e9diaires. L\u2019ENS appartient \u00e0 un internet plus libre, o\u00f9 les utilisateurs reprennent le pouvoir sur leur identit\u00e9 et leurs donn\u00e9es.<\/p>

D\u2019un c\u00f4t\u00e9, vous louez une adresse selon les conditions d\u2019un tiers. De l\u2019autre, vous poss\u00e9dez un nom que vous contr\u00f4lez pleinement. D\u2019un c\u00f4t\u00e9, vous \u00eates un client. De l\u2019autre, vous \u00eates un propri\u00e9taire.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Pourquoi acheter un nom Web3 aujourd\u2019hui ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\"Acheter\t\t\t\t\t\t\t\t\t\t\t
Acheter un nom de domaine Web3 sur ENS<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Poss\u00e9der un nom Web3, c\u2019est avant tout simplifier son usage quotidien des cryptomonnaies. Plut\u00f4t que d\u2019avoir \u00e0 transmettre une adresse longue et complexe \u00e0 chaque transaction, vous pouvez simplement donner votre nom ENS.<\/p>

C\u2019est aussi une mani\u00e8re de se cr\u00e9er une r\u00e9putation dans l\u2019\u00e9cosyst\u00e8me Web3. Sur de nombreuses applications d\u00e9centralis\u00e9es, votre nom .eth<\/b><\/span> devient votre identit\u00e9 publique. Il s\u2019affiche comme un pseudo sur des marketplaces, des forums ou des r\u00e9seaux sociaux d\u00e9centralis\u00e9s. Pour les cr\u00e9ateurs de contenu, les artistes ou les entrepreneurs Web3, cela repr\u00e9sente un avantage clair.<\/p>

Enfin, certains y voient aussi une opportunit\u00e9 strat\u00e9gique. Comme au d\u00e9but du Web, les noms les plus simples, g\u00e9n\u00e9riques ou m\u00e9morables peuvent prendre de la valeur. Certaines personnes ont d\u00e9j\u00e0 revendu des noms ENS pour plusieurs milliers de dollars. Mais au-del\u00e0 de la sp\u00e9culation, la vraie valeur d\u2019un nom Web3 r\u00e9side dans l\u2019usage qu\u2019on en fait.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Le mot de la fin<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Acheter un nom Web3, c\u2019est plus qu\u2019un simple achat : c\u2019est une mani\u00e8re de s\u2019ancrer dans une nouvelle vision de l\u2019internet, plus ouverte, plus r\u00e9siliente et plus personnelle. C\u2019est aussi un geste simple, mais symbolique, pour se r\u00e9approprier son identit\u00e9 num\u00e9rique.<\/p>

Et comme toujours dans la crypto, mieux vaut s\u2019y int\u00e9resser t\u00f4t. Car les noms les plus int\u00e9ressants partent vite.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Les noms Web3 comme \u00ab\u00a0votrenom.eth\u00a0\u00bb deviennent les nouvelles adresses de l’internet d\u00e9centralis\u00e9. Que cachent-ils et en quoi diff\u00e8rent-ils des domaines classiques ? <\/p>","protected":false},"author":18,"featured_media":13570,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mo_disable_npp":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[16,26],"tags":[],"ppma_author":[145],"class_list":["post-13557","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lexique","category-premiers-pas"],"yoast_head":"\nDNS vs ENS : pourquoi poss\u00e9der un nom de domaine Web3 ? - BIM Blog<\/title>\n<meta name=\"description\" content=\"DNS, ENS, noms de domaine Web3\u2026 Que signifient ces acronymes et pourquoi acheter un nom comme "votrenom.eth" ? 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