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.
{
"@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://mastodon.social/users/h4ckernews/statuses/114599375010198197",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-05-30T23:28:09Z",
"url": "https://mastodon.social/@h4ckernews/114599375010198197",
"attributedTo": "https://mastodon.social/users/h4ckernews",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.social/users/h4ckernews/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.social/users/h4ckernews/statuses/114599375010198197",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.social,2025-05-30:objectId=1010661497:objectType=Conversation",
"content": "<p>Java Virtual Threads Ate My Memory: A Web Crawler's Tale of Speed vs. Memory</p><p><a href=\"https://dariobalinzo.medium.com/virtual-threads-ate-my-memory-a-web-crawlers-tale-of-speed-vs-memory-a92fc75085f6\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">dariobalinzo.medium.com/virtua</span><span class=\"invisible\">l-threads-ate-my-memory-a-web-crawlers-tale-of-speed-vs-memory-a92fc75085f6</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/Java\" class=\"mention hashtag\" rel=\"tag\">#<span>Java</span></a> <a href=\"https://mastodon.social/tags/Virtual\" class=\"mention hashtag\" rel=\"tag\">#<span>Virtual</span></a> <a href=\"https://mastodon.social/tags/Threads\" class=\"mention hashtag\" rel=\"tag\">#<span>Threads</span></a> <a href=\"https://mastodon.social/tags/Web\" class=\"mention hashtag\" rel=\"tag\">#<span>Web</span></a> <a href=\"https://mastodon.social/tags/Crawler\" class=\"mention hashtag\" rel=\"tag\">#<span>Crawler</span></a> <a href=\"https://mastodon.social/tags/Memory\" class=\"mention hashtag\" rel=\"tag\">#<span>Memory</span></a> <a href=\"https://mastodon.social/tags/Management\" class=\"mention hashtag\" rel=\"tag\">#<span>Management</span></a> <a href=\"https://mastodon.social/tags/Speed\" class=\"mention hashtag\" rel=\"tag\">#<span>Speed</span></a> <a href=\"https://mastodon.social/tags/Optimization\" class=\"mention hashtag\" rel=\"tag\">#<span>Optimization</span></a></p>",
"contentMap": {
"en": "<p>Java Virtual Threads Ate My Memory: A Web Crawler's Tale of Speed vs. Memory</p><p><a href=\"https://dariobalinzo.medium.com/virtual-threads-ate-my-memory-a-web-crawlers-tale-of-speed-vs-memory-a92fc75085f6\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">dariobalinzo.medium.com/virtua</span><span class=\"invisible\">l-threads-ate-my-memory-a-web-crawlers-tale-of-speed-vs-memory-a92fc75085f6</span></a></p><p><a href=\"https://mastodon.social/tags/HackerNews\" class=\"mention hashtag\" rel=\"tag\">#<span>HackerNews</span></a> <a href=\"https://mastodon.social/tags/Java\" class=\"mention hashtag\" rel=\"tag\">#<span>Java</span></a> <a href=\"https://mastodon.social/tags/Virtual\" class=\"mention hashtag\" rel=\"tag\">#<span>Virtual</span></a> <a href=\"https://mastodon.social/tags/Threads\" class=\"mention hashtag\" rel=\"tag\">#<span>Threads</span></a> <a href=\"https://mastodon.social/tags/Web\" class=\"mention hashtag\" rel=\"tag\">#<span>Web</span></a> <a href=\"https://mastodon.social/tags/Crawler\" class=\"mention hashtag\" rel=\"tag\">#<span>Crawler</span></a> <a href=\"https://mastodon.social/tags/Memory\" class=\"mention hashtag\" rel=\"tag\">#<span>Memory</span></a> <a href=\"https://mastodon.social/tags/Management\" class=\"mention hashtag\" rel=\"tag\">#<span>Management</span></a> <a href=\"https://mastodon.social/tags/Speed\" class=\"mention hashtag\" rel=\"tag\">#<span>Speed</span></a> <a href=\"https://mastodon.social/tags/Optimization\" class=\"mention hashtag\" rel=\"tag\">#<span>Optimization</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/hackernews",
"name": "#hackernews"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/java",
"name": "#java"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/virtual",
"name": "#virtual"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/threads",
"name": "#threads"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/web",
"name": "#web"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/crawler",
"name": "#crawler"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/memory",
"name": "#memory"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/management",
"name": "#management"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/speed",
"name": "#speed"
},
{
"type": "Hashtag",
"href": "https://mastodon.social/tags/optimization",
"name": "#optimization"
}
],
"replies": {
"id": "https://mastodon.social/users/h4ckernews/statuses/114599375010198197/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.social/users/h4ckernews/statuses/114599375010198197/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.social/users/h4ckernews/statuses/114599375010198197/replies",
"items": []
}
},
"likes": {
"id": "https://mastodon.social/users/h4ckernews/statuses/114599375010198197/likes",
"type": "Collection",
"totalItems": 0
},
"shares": {
"id": "https://mastodon.social/users/h4ckernews/statuses/114599375010198197/shares",
"type": "Collection",
"totalItems": 1
}
}