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://mas.to/users/nemo/statuses/114594606669690192", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-05-30T03:15:30Z", "url": "https://mas.to/@nemo/114594606669690192", "attributedTo": "https://mas.to/users/nemo", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mas.to/users/nemo/followers" ], "sensitive": false, "atomUri": "https://mas.to/users/nemo/statuses/114594606669690192", "inReplyToAtomUri": null, "conversation": "tag:mas.to,2025-05-30:objectId=498727623:objectType=Conversation", "content": "<p>🚨 Apple Safari users beware! A stealthy Browser-in-the-Middle (BitM) attack exploits Safari’s fullscreen mode lack of clear indicators, enabling phishing scams that steal credentials undetected. Stay vigilant with login prompts &amp; avoid suspicious redirects! 🔒🕵️‍♂️ <a href=\"https://mas.to/tags/CyberSecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>CyberSecurity</span></a> <a href=\"https://mas.to/tags/PhishingAlert\" class=\"mention hashtag\" rel=\"tag\">#<span>PhishingAlert</span></a> <a href=\"https://mas.to/tags/Safari\" class=\"mention hashtag\" rel=\"tag\">#<span>Safari</span></a> <a href=\"https://mas.to/tags/BrowserSecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>BrowserSecurity</span></a> <a href=\"https://mas.to/tags/InfoSec\" class=\"mention hashtag\" rel=\"tag\">#<span>InfoSec</span></a> <a href=\"https://cyberinsider.com/apple-safari-users-vulnerable-to-stealthy-browser-attacks/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cyberinsider.com/apple-safari-</span><span class=\"invisible\">users-vulnerable-to-stealthy-browser-attacks/</span></a> <a href=\"https://mas.to/tags/newz\" class=\"mention hashtag\" rel=\"tag\">#<span>newz</span></a></p>", "contentMap": { "en": "<p>🚨 Apple Safari users beware! A stealthy Browser-in-the-Middle (BitM) attack exploits Safari’s fullscreen mode lack of clear indicators, enabling phishing scams that steal credentials undetected. Stay vigilant with login prompts &amp; avoid suspicious redirects! 🔒🕵️‍♂️ <a href=\"https://mas.to/tags/CyberSecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>CyberSecurity</span></a> <a href=\"https://mas.to/tags/PhishingAlert\" class=\"mention hashtag\" rel=\"tag\">#<span>PhishingAlert</span></a> <a href=\"https://mas.to/tags/Safari\" class=\"mention hashtag\" rel=\"tag\">#<span>Safari</span></a> <a href=\"https://mas.to/tags/BrowserSecurity\" class=\"mention hashtag\" rel=\"tag\">#<span>BrowserSecurity</span></a> <a href=\"https://mas.to/tags/InfoSec\" class=\"mention hashtag\" rel=\"tag\">#<span>InfoSec</span></a> <a href=\"https://cyberinsider.com/apple-safari-users-vulnerable-to-stealthy-browser-attacks/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">cyberinsider.com/apple-safari-</span><span class=\"invisible\">users-vulnerable-to-stealthy-browser-attacks/</span></a> <a href=\"https://mas.to/tags/newz\" class=\"mention hashtag\" rel=\"tag\">#<span>newz</span></a></p>" }, "updated": "2025-05-30T03:16:23Z", "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mas.to/tags/newz", "name": "#newz" }, { "type": "Hashtag", "href": "https://mas.to/tags/infosec", "name": "#infosec" }, { "type": "Hashtag", "href": "https://mas.to/tags/browsersecurity", "name": "#browsersecurity" }, { "type": "Hashtag", "href": "https://mas.to/tags/safari", "name": "#safari" }, { "type": "Hashtag", "href": "https://mas.to/tags/phishingalert", "name": "#phishingalert" }, { "type": "Hashtag", "href": "https://mas.to/tags/cybersecurity", "name": "#cybersecurity" } ], "replies": { "id": "https://mas.to/users/nemo/statuses/114594606669690192/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mas.to/users/nemo/statuses/114594606669690192/replies?only_other_accounts=true&page=true", "partOf": "https://mas.to/users/nemo/statuses/114594606669690192/replies", "items": [] } }, "likes": { "id": "https://mas.to/users/nemo/statuses/114594606669690192/likes", "type": "Collection", "totalItems": 2 }, "shares": { "id": "https://mas.to/users/nemo/statuses/114594606669690192/shares", "type": "Collection", "totalItems": 2 } }