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.raddemo.host/users/admin/statuses/114655396380363251",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-06-09T20:55:08Z",
"url": "https://mastodon.raddemo.host/@admin/114655396380363251",
"attributedTo": "https://mastodon.raddemo.host/users/admin",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://mastodon.raddemo.host/users/admin/followers"
],
"sensitive": false,
"atomUri": "https://mastodon.raddemo.host/users/admin/statuses/114655396380363251",
"inReplyToAtomUri": null,
"conversation": "tag:mastodon.raddemo.host,2025-06-09:objectId=79362:objectType=Conversation",
"content": "<p>Configure Postfix MTA for Use with <a href=\"https://mastodon.raddemo.host/tags/Mastodon\" class=\"mention hashtag\" rel=\"tag\">#<span>Mastodon</span></a> Effortlessly (Effortless 5 Minute Guide) This article describes how to configure Postfix MTA for use with Mastodon server. Admins who self-host their Mastodon instances can easily configure Postfix MTA (possibly even to do so using the same VPS server) to handle the <a href=\"https://mastodon.raddemo.host/tags/email\" class=\"mention hashtag\" rel=\"tag\">#<span>email</span></a> services.<br />What is Postfix?<br />Postfix is a popular open-source ...<br />Continued 👉 <a href=\"https://blog.radwebhosting.com/configure-postfix-mta-for-use-with-mastodon-effortlessly-effortless-5-minute-guide/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">blog.radwebhosting.com/configu</span><span class=\"invisible\">re-postfix-mta-for-use-with-mastodon-effortlessly-effortless-5-minute-guide/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host</span></a> <a href=\"https://mastodon.raddemo.host/tags/mailtransferagent\" class=\"mention hashtag\" rel=\"tag\">#<span>mailtransferagent</span></a> <a href=\"https://mastodon.raddemo.host/tags/mailserver\" class=\"mention hashtag\" rel=\"tag\">#<span>mailserver</span></a> <a href=\"https://mastodon.raddemo.host/tags/mailrelay\" class=\"mention hashtag\" rel=\"tag\">#<span>mailrelay</span></a> <a href=\"https://mastodon.raddemo.host/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://mastodon.raddemo.host/tags/selfhosting\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosting</span></a> <a href=\"https://mastodon.raddemo.host/tags/selfhosted\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosted</span></a></p>",
"contentMap": {
"en": "<p>Configure Postfix MTA for Use with <a href=\"https://mastodon.raddemo.host/tags/Mastodon\" class=\"mention hashtag\" rel=\"tag\">#<span>Mastodon</span></a> Effortlessly (Effortless 5 Minute Guide) This article describes how to configure Postfix MTA for use with Mastodon server. Admins who self-host their Mastodon instances can easily configure Postfix MTA (possibly even to do so using the same VPS server) to handle the <a href=\"https://mastodon.raddemo.host/tags/email\" class=\"mention hashtag\" rel=\"tag\">#<span>email</span></a> services.<br />What is Postfix?<br />Postfix is a popular open-source ...<br />Continued 👉 <a href=\"https://blog.radwebhosting.com/configure-postfix-mta-for-use-with-mastodon-effortlessly-effortless-5-minute-guide/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">blog.radwebhosting.com/configu</span><span class=\"invisible\">re-postfix-mta-for-use-with-mastodon-effortlessly-effortless-5-minute-guide/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host</span></a> <a href=\"https://mastodon.raddemo.host/tags/mailtransferagent\" class=\"mention hashtag\" rel=\"tag\">#<span>mailtransferagent</span></a> <a href=\"https://mastodon.raddemo.host/tags/mailserver\" class=\"mention hashtag\" rel=\"tag\">#<span>mailserver</span></a> <a href=\"https://mastodon.raddemo.host/tags/mailrelay\" class=\"mention hashtag\" rel=\"tag\">#<span>mailrelay</span></a> <a href=\"https://mastodon.raddemo.host/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://mastodon.raddemo.host/tags/selfhosting\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosting</span></a> <a href=\"https://mastodon.raddemo.host/tags/selfhosted\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosted</span></a></p>"
},
"attachment": [],
"tag": [
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/mastodon",
"name": "#mastodon"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/email",
"name": "#email"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/mailtransferagent",
"name": "#mailtransferagent"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/mailserver",
"name": "#mailserver"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/mailrelay",
"name": "#mailrelay"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/opensource",
"name": "#opensource"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/selfhosting",
"name": "#selfhosting"
},
{
"type": "Hashtag",
"href": "https://mastodon.raddemo.host/tags/selfhosted",
"name": "#selfhosted"
}
],
"replies": {
"id": "https://mastodon.raddemo.host/users/admin/statuses/114655396380363251/replies",
"type": "Collection",
"first": {
"type": "CollectionPage",
"next": "https://mastodon.raddemo.host/users/admin/statuses/114655396380363251/replies?only_other_accounts=true&page=true",
"partOf": "https://mastodon.raddemo.host/users/admin/statuses/114655396380363251/replies",
"items": []
}
}
}