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://mastodon.social/users/radwebhosting/statuses/114380243668392807", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-04-22T06:40:11Z", "url": "https://mastodon.social/@radwebhosting/114380243668392807", "attributedTo": "https://mastodon.social/users/radwebhosting", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.social/users/radwebhosting/followers" ], "sensitive": false, "atomUri": "https://mastodon.social/users/radwebhosting/statuses/114380243668392807", "inReplyToAtomUri": null, "conversation": "tag:mastodon.social,2025-04-22:objectId=978310074:objectType=Conversation", "content": "<p>Configure Postfix MTA for Use with <a href=\"https://mastodon.social/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.social/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&amp;utm_medium=social&amp;utm_campaign=ReviveOldPost\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><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&amp;utm_medium=social&amp;utm_campaign=ReviveOldPost</span></a> <a href=\"https://mastodon.social/tags/mailserver\" class=\"mention hashtag\" rel=\"tag\">#<span>mailserver</span></a> <a href=\"https://mastodon.social/tags/mailrelay\" class=\"mention hashtag\" rel=\"tag\">#<span>mailrelay</span></a> <a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://mastodon.social/tags/selfhosted\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosted</span></a> <a href=\"https://mastodon.social/tags/selfhosting\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosting</span></a> <a href=\"https://mastodon.social/tags/mailtransferagent\" class=\"mention hashtag\" rel=\"tag\">#<span>mailtransferagent</span></a></p>", "contentMap": { "en": "<p>Configure Postfix MTA for Use with <a href=\"https://mastodon.social/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.social/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&amp;utm_medium=social&amp;utm_campaign=ReviveOldPost\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><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&amp;utm_medium=social&amp;utm_campaign=ReviveOldPost</span></a> <a href=\"https://mastodon.social/tags/mailserver\" class=\"mention hashtag\" rel=\"tag\">#<span>mailserver</span></a> <a href=\"https://mastodon.social/tags/mailrelay\" class=\"mention hashtag\" rel=\"tag\">#<span>mailrelay</span></a> <a href=\"https://mastodon.social/tags/opensource\" class=\"mention hashtag\" rel=\"tag\">#<span>opensource</span></a> <a href=\"https://mastodon.social/tags/selfhosted\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosted</span></a> <a href=\"https://mastodon.social/tags/selfhosting\" class=\"mention hashtag\" rel=\"tag\">#<span>selfhosting</span></a> <a href=\"https://mastodon.social/tags/mailtransferagent\" class=\"mention hashtag\" rel=\"tag\">#<span>mailtransferagent</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.social/tags/mastodon", "name": "#mastodon" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/email", "name": "#email" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/mailserver", "name": "#mailserver" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/mailrelay", "name": "#mailrelay" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/opensource", "name": "#opensource" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/selfhosted", "name": "#selfhosted" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/selfhosting", "name": "#selfhosting" }, { "type": "Hashtag", "href": "https://mastodon.social/tags/MailTransferAgent", "name": "#MailTransferAgent" } ], "replies": { "id": "https://mastodon.social/users/radwebhosting/statuses/114380243668392807/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.social/users/radwebhosting/statuses/114380243668392807/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.social/users/radwebhosting/statuses/114380243668392807/replies", "items": [] } }, "likes": { "id": "https://mastodon.social/users/radwebhosting/statuses/114380243668392807/likes", "type": "Collection", "totalItems": 1 }, "shares": { "id": "https://mastodon.social/users/radwebhosting/statuses/114380243668392807/shares", "type": "Collection", "totalItems": 2 } }