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", "Hashtag": "as:Hashtag" } ], "id": "https://chaos.social/users/dentangle/statuses/114261554526841318", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-01T07:35:58Z", "url": "https://chaos.social/@dentangle/114261554526841318", "attributedTo": "https://chaos.social/users/dentangle", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://chaos.social/users/dentangle/followers" ], "sensitive": false, "atomUri": "https://chaos.social/users/dentangle/statuses/114261554526841318", "inReplyToAtomUri": null, "conversation": "tag:chaos.social,2025-04-01:objectId=258766815:objectType=Conversation", "content": "<p><a href=\"https://chaos.social/tags/IETF\" class=\"mention hashtag\" rel=\"tag\">#<span>IETF</span></a> RFC 9777 was released last month, replacing RFC 3810 for <a href=\"https://chaos.social/tags/Multicast\" class=\"mention hashtag\" rel=\"tag\">#<span>Multicast</span></a> Listener Discovery ( <a href=\"https://chaos.social/tags/MLD2\" class=\"mention hashtag\" rel=\"tag\">#<span>MLD2</span></a> ).</p><p>Reviewing this, aside from a bunch of textual clarifications and fixes, the only real technical change to speak of was an adjustment to the Multicast Address Listening Interval (MALI).</p><p>I&#39;ve patched <a href=\"https://chaos.social/tags/libmld\" class=\"mention hashtag\" rel=\"tag\">#<span>libmld</span></a> and <a href=\"https://chaos.social/tags/librecast\" class=\"mention hashtag\" rel=\"tag\">#<span>librecast</span></a> with the new timer value and the change will be included in the next release.</p><p><a href=\"https://datatracker.ietf.org/doc/html/rfc9777\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">datatracker.ietf.org/doc/html/</span><span class=\"invisible\">rfc9777</span></a></p>", "contentMap": { "en": "<p><a href=\"https://chaos.social/tags/IETF\" class=\"mention hashtag\" rel=\"tag\">#<span>IETF</span></a> RFC 9777 was released last month, replacing RFC 3810 for <a href=\"https://chaos.social/tags/Multicast\" class=\"mention hashtag\" rel=\"tag\">#<span>Multicast</span></a> Listener Discovery ( <a href=\"https://chaos.social/tags/MLD2\" class=\"mention hashtag\" rel=\"tag\">#<span>MLD2</span></a> ).</p><p>Reviewing this, aside from a bunch of textual clarifications and fixes, the only real technical change to speak of was an adjustment to the Multicast Address Listening Interval (MALI).</p><p>I&#39;ve patched <a href=\"https://chaos.social/tags/libmld\" class=\"mention hashtag\" rel=\"tag\">#<span>libmld</span></a> and <a href=\"https://chaos.social/tags/librecast\" class=\"mention hashtag\" rel=\"tag\">#<span>librecast</span></a> with the new timer value and the change will be included in the next release.</p><p><a href=\"https://datatracker.ietf.org/doc/html/rfc9777\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">datatracker.ietf.org/doc/html/</span><span class=\"invisible\">rfc9777</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://chaos.social/tags/ietf", "name": "#ietf" }, { "type": "Hashtag", "href": "https://chaos.social/tags/multicast", "name": "#multicast" }, { "type": "Hashtag", "href": "https://chaos.social/tags/mld2", "name": "#mld2" }, { "type": "Hashtag", "href": "https://chaos.social/tags/libmld", "name": "#libmld" }, { "type": "Hashtag", "href": "https://chaos.social/tags/librecast", "name": "#librecast" } ], "replies": { "id": "https://chaos.social/users/dentangle/statuses/114261554526841318/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://chaos.social/users/dentangle/statuses/114261554526841318/replies?only_other_accounts=true&page=true", "partOf": "https://chaos.social/users/dentangle/statuses/114261554526841318/replies", "items": [] } }, "likes": { "id": "https://chaos.social/users/dentangle/statuses/114261554526841318/likes", "type": "Collection", "totalItems": 3 }, "shares": { "id": "https://chaos.social/users/dentangle/statuses/114261554526841318/shares", "type": "Collection", "totalItems": 3 } }