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.

Open in browser →
{ "@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://mastodon.social/users/appassionato/statuses/113519553393968847/activity", "type": "Create", "actor": "https://mastodon.social/users/appassionato", "published": "2024-11-21T06:35:19Z", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/appassionato/followers", "https://a.gup.pe/u/bookstodon", "https://a.gup.pe/u/bookstodon/followers" ], "object": { "id": "https://mastodon.social/users/appassionato/statuses/113519553393968847", "type": "Note", "summary": null, "inReplyTo": null, "published": "2024-11-21T06:35:19Z", "url": "https://mastodon.social/@appassionato/113519553393968847", "attributedTo": "https://mastodon.social/users/appassionato", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/appassionato/followers", "https://a.gup.pe/u/bookstodon", "https://a.gup.pe/u/bookstodon/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/appassionato/statuses/113519553393968847", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2024-11-21:objectId=853476083:objectType=Conversation", "content": "<p>Cyber CISO Marksmanship: Hitting the Mark in Cybersecurity Leadership by Ken Dunham &amp; James Johnson &amp; Joseph McComb &amp; Jason Elrod, 2025</p><p>Cyber CISO Marksmanship is the only book of its kind authored by multiple highly experienced individuals to collectively bring together the “best of the best” on what works and what doesn’t, as a CISO, in a unique storytelling format. </p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://a.gup.pe/u/bookstodon\" class=\"u-url mention\">@<span>bookstodon</span></a></span> <br /><a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a> <br /><a href=\"https://mastodon.social/tags/nonfiction\" class=\"mention hashtag\" rel=\"tag\">#<span>nonfiction</span></a> <br /><a href=\"https://mastodon.social/tags/cybersecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>cybersecurity</span></a> <br /><a href=\"https://mastodon.social/tags/CISO\" class=\"mention hashtag\" rel=\"tag\">#<span>CISO</span></a></p>", "contentMap": { "en": "<p>Cyber CISO Marksmanship: Hitting the Mark in Cybersecurity Leadership by Ken Dunham &amp; James Johnson &amp; Joseph McComb &amp; Jason Elrod, 2025</p><p>Cyber CISO Marksmanship is the only book of its kind authored by multiple highly experienced individuals to collectively bring together the “best of the best” on what works and what doesn’t, as a CISO, in a unique storytelling format. </p><p><span class=\"h-card\" translate=\"no\"><a href=\"https://a.gup.pe/u/bookstodon\" class=\"u-url mention\">@<span>bookstodon</span></a></span> <br /><a href=\"https://mastodon.social/tags/books\" class=\"mention hashtag\" rel=\"tag\">#<span>books</span></a> <br /><a href=\"https://mastodon.social/tags/nonfiction\" class=\"mention hashtag\" rel=\"tag\">#<span>nonfiction</span></a> <br /><a href=\"https://mastodon.social/tags/cybersecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>cybersecurity</span></a> <br /><a href=\"https://mastodon.social/tags/CISO\" class=\"mention hashtag\" rel=\"tag\">#<span>CISO</span></a></p>" }, "attachment": [ { "type": "Document", "mediaType": "image/jpeg", "url": "https://files.mastodon.social/media_attachments/files/113/519/551/347/723/824/original/caef4fbe05e71602.jpg", "name": "This book is designed for a Chief Information Security Officer (CISO) or an individual seeking this role and also has value to other types of cyber leaders. Knowledge and understanding of traditional books can only get you so far – Cyber CISO Marksmanship has powerful perspectives, real-world accounts, and insights you won’t find anywhere else! Key features included with Cyber CISO Marksmanship: • Over a century of CISO experience is represented by the authors of this book • Unique Storytelling Format based upon real-world accounts from leading CISOs • Sharpshooter perspectives from multiple CISOs for each story • Bottom Line Up Front (BLUF) for quick reference on outcomes for each story • Sharpshooter icon for what works • Misfire icon for pitfalls to avoid • All book owners are invited to participate in online content at CyberCISOMarksmanship.com and face-to-face events • Book owners who are CISOs qualify to join, for free, a private CISO online community (by CISOs for CISOs) While this book is written for CISOs or those desiring to be in that role soon, it is also helpful to other cyber leaders.", "blurhash": "U13u.fM{Huxu~XWBSuxu~XIUR*xu%yRjV@xu", "focalPoint": [ 0, 0 ], "width": 640, "height": 960 } ], "tag": [ { "type": "Mention", "href": "https://a.gup.pe/u/bookstodon", "name": "@bookstodon@a.gup.pe" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/books", "name": "#books" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/nonfiction", "name": "#nonfiction" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/cybersecurity", "name": "#cybersecurity" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/ciso", "name": "#ciso" } ], "replies": { "id": "https://mastodon.social/users/appassionato/statuses/113519553393968847/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/appassionato/statuses/113519553393968847/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/appassionato/statuses/113519553393968847/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/appassionato/statuses/113519553393968847/likes", "type": "Collection", "totalItems": 0 }, "shares": { "id": "https://mastodon.social/users/appassionato/statuses/113519553393968847/shares", "type": "Collection", "totalItems": 4 } } }