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", "litepub": "http://litepub.social/ns#", "directMessage": "litepub:directMessage", "blurhash": "toot:blurhash", "focalPoint": { "@container": "@list", "@id": "toot:focalPoint" } } ], "id": "https://infosec.exchange/users/kpwn/statuses/114070656316179749/replies", "type": "Collection", "first": { "id": "https://infosec.exchange/users/kpwn/statuses/114070656316179749/replies?page=true", "type": "CollectionPage", "next": "https://infosec.exchange/users/kpwn/statuses/114070656316179749/replies?only_other_accounts=true&page=true", "partOf": "https://infosec.exchange/users/kpwn/statuses/114070656316179749/replies", "items": [ { "id": "https://infosec.exchange/users/kpwn/statuses/114070660182041471", "type": "Note", "summary": null, "inReplyTo": "https://infosec.exchange/users/kpwn/statuses/114070656316179749", "published": "2025-02-26T14:29:01Z", "url": "https://infosec.exchange/@kpwn/114070660182041471", "attributedTo": "https://infosec.exchange/users/kpwn", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://infosec.exchange/users/kpwn/followers" ], "sensitive": false, "atomUri": "https://infosec.exchange/users/kpwn/statuses/114070660182041471", "inReplyToAtomUri": "https://infosec.exchange/users/kpwn/statuses/114070656316179749", "conversation": "tag:infosec.exchange,2025-02-26:objectId=245653125:objectType=Conversation", "content": "<p>All of these parts are then surrounded by HTML span-tags with certain CSS classes.</p><p>If the link is shortened:</p><p>• The prefix and suffix get the CSS class &quot;invisible&quot; and are not displayed.</p><p>• The display_url gets the CSS class &quot;ellipsis&quot;</p><p>This leads to the following appearance:</p>", "contentMap": { "en": "<p>All of these parts are then surrounded by HTML span-tags with certain CSS classes.</p><p>If the link is shortened:</p><p>• The prefix and suffix get the CSS class &quot;invisible&quot; and are not displayed.</p><p>• The display_url gets the CSS class &quot;ellipsis&quot;</p><p>This leads to the following appearance:</p>" }, "attachment": [ { "type": "Document", "mediaType": "image/png", "url": "https://media.infosec.exchange/infosec.exchange/media_attachments/files/114/070/660/162/449/487/original/97cb9a6a53e56127.png", "name": "Screenshot of Mastodon showing the link as: kpwn.de/2025/02/cve-2025-12345…", "blurhash": "U34emL?w.7tM%d%dx[tQbBWRk9WYV~RWM|M_", "focalPoint": [ 0, 0 ], "width": 600, "height": 128 } ], "tag": [], "replies": { "id": "https://infosec.exchange/users/kpwn/statuses/114070660182041471/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://infosec.exchange/users/kpwn/statuses/114070660182041471/replies?min_id=114070660190463814&page=true", "partOf": "https://infosec.exchange/users/kpwn/statuses/114070660182041471/replies", "items": [ "https://infosec.exchange/users/kpwn/statuses/114070660190463814" ] } }, "likes": { "id": "https://infosec.exchange/users/kpwn/statuses/114070660182041471/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://infosec.exchange/users/kpwn/statuses/114070660182041471/shares", "type": "Collection", "totalItems": 1 } } ] } }