ActivityPub Viewer

A small tool to view real-world ActivityPub objects as JSON! Enter a URL or username from Mastodon or a similar service below, and we'll send a request with the right Accept header to the server to view the underlying object.

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{ "@context": [ "https://www.w3.org/ns/activitystreams", { "ostatus": "http://ostatus.org#", "atomUri": "ostatus:atomUri", "inReplyToAtomUri": "ostatus:inReplyToAtomUri", "conversation": "ostatus:conversation", "sensitive": "as:sensitive", "toot": "http://joinmastodon.org/ns#", "votersCount": "toot:votersCount", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" }, "Hashtag": "as:Hashtag" } ], "id": "https://w3c.social/users/w3cdevs/statuses/114148848495722468", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-03-12T09:53:20Z", "url": "https://w3c.social/@w3cdevs/114148848495722468", "attributedTo": "https://w3c.social/users/w3cdevs", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://w3c.social/users/w3cdevs/followers" ], "sensitive": false, "atomUri": "https://w3c.social/users/w3cdevs/statuses/114148848495722468", "inReplyToAtomUri": null, "conversation": "tag:w3c.social,2025-03-12:objectId=13705214:objectType=Conversation", "content": "<p>[Security at W3C]</p><p>In this talk, Kian Jamali introduces the Trusted Types (TT) Helper, a <a href=\"https://w3c.social/tags/Chrome\" class=\"mention hashtag\" rel=\"tag\">#<span>Chrome</span></a> extension designed to simplify adopting Trusted Types in <a href=\"https://w3c.social/tags/webapps\" class=\"mention hashtag\" rel=\"tag\">#<span>webapps</span></a> Trusted Types is a <a href=\"https://w3c.social/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a> feature that prevents unsafe DOM manipulations by enforcing policies. </p><p>🎬 <a href=\"https://youtu.be/EJ_axf3JAbk\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">youtu.be/EJ_axf3JAbk</span><span class=\"invisible\"></span></a></p><p>The tool aims to streamline adoption, improve debugging efficiency, and help <a href=\"https://w3c.social/tags/developers\" class=\"mention hashtag\" rel=\"tag\">#<span>developers</span></a> implement secure, functional default policies, although a final review by a security engineer is recommended.</p>", "contentMap": { "en": "<p>[Security at W3C]</p><p>In this talk, Kian Jamali introduces the Trusted Types (TT) Helper, a <a href=\"https://w3c.social/tags/Chrome\" class=\"mention hashtag\" rel=\"tag\">#<span>Chrome</span></a> extension designed to simplify adopting Trusted Types in <a href=\"https://w3c.social/tags/webapps\" class=\"mention hashtag\" rel=\"tag\">#<span>webapps</span></a> Trusted Types is a <a href=\"https://w3c.social/tags/security\" class=\"mention hashtag\" rel=\"tag\">#<span>security</span></a> feature that prevents unsafe DOM manipulations by enforcing policies. </p><p>🎬 <a href=\"https://youtu.be/EJ_axf3JAbk\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"\">youtu.be/EJ_axf3JAbk</span><span class=\"invisible\"></span></a></p><p>The tool aims to streamline adoption, improve debugging efficiency, and help <a href=\"https://w3c.social/tags/developers\" class=\"mention hashtag\" rel=\"tag\">#<span>developers</span></a> implement secure, functional default policies, although a final review by a security engineer is recommended.</p>" }, "updated": "2025-03-12T09:54:37Z", "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://w3csocial.files.fedi.monster/media_attachments/files/114/148/841/027/485/928/original/f1f8fa21f924a4d5.png", "name": "Snapshot of Kian's presentation showing a slide titled \"Trusted Types policies?\"", "blurhash": "UlKBO7~q%M?boKM{M{Rj%MNGD%R*4nRkxuWB", "focalPoint": [ 0, 0 ], "width": 800, "height": 421 } ], "tag": [ { "type": "Hashtag", "href": "https://w3c.social/tags/chrome", "name": "#chrome" }, { "type": "Hashtag", "href": "https://w3c.social/tags/webapps", "name": "#webapps" }, { "type": "Hashtag", "href": "https://w3c.social/tags/security", "name": "#security" }, { "type": "Hashtag", "href": "https://w3c.social/tags/developers", "name": "#developers" } ], "replies": { "id": "https://w3c.social/users/w3cdevs/statuses/114148848495722468/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://w3c.social/users/w3cdevs/statuses/114148848495722468/replies?only_other_accounts=true&page=true", "partOf": "https://w3c.social/users/w3cdevs/statuses/114148848495722468/replies", "items": [] } }, "likes": { "id": "https://w3c.social/users/w3cdevs/statuses/114148848495722468/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://w3c.social/users/w3cdevs/statuses/114148848495722468/shares", "type": "Collection", "totalItems": 4 } }