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.sdf.org/users/jbsegal/statuses/114054709825470145", "type": "Note", "summary": null, "inReplyTo": null, "published": "2025-02-23T18:52:38Z", "url": "https://mastodon.sdf.org/@jbsegal/114054709825470145", "attributedTo": "https://mastodon.sdf.org/users/jbsegal", "to": [ "https://www.w3.org/ns/activitystreams#Public" ], "cc": [ "https://mastodon.sdf.org/users/jbsegal/followers" ], "sensitive": false, "atomUri": "https://mastodon.sdf.org/users/jbsegal/statuses/114054709825470145", "inReplyToAtomUri": null, "conversation": "tag:mastodon.sdf.org,2025-02-23:objectId=246122541:objectType=Conversation", "content": "<p>Hey internet infrastructure nerds:<br />Do we know anyone anywhere near<br />sbcglobal_postmaster@abuse-att.net who could speak to why mail from lse that goes through them and particularly through* prodigy.net keeps being rejected as &quot;Deferred: 451 4.1.8 DNS error. Cannot resolve lse.org&quot; when LSE&#39;s DNS is UP, accurate, and more stable than it’s been in years?</p><p>* through, NOT to.</p><p><a href=\"https://mastodon.sdf.org/tags/DNS\" class=\"mention hashtag\" rel=\"tag\">#<span>DNS</span></a> <a href=\"https://mastodon.sdf.org/tags/Email\" class=\"mention hashtag\" rel=\"tag\">#<span>Email</span></a> <a href=\"https://mastodon.sdf.org/tags/att\" class=\"mention hashtag\" rel=\"tag\">#<span>att</span></a>.net <a href=\"https://mastodon.sdf.org/tags/sbcglobal\" class=\"mention hashtag\" rel=\"tag\">#<span>sbcglobal</span></a> <a href=\"https://mastodon.sdf.org/tags/prodigy\" class=\"mention hashtag\" rel=\"tag\">#<span>prodigy</span></a>.net <a href=\"https://mastodon.sdf.org/tags/infrastructureIsHard\" class=\"mention hashtag\" rel=\"tag\">#<span>infrastructureIsHard</span></a> <a href=\"https://mastodon.sdf.org/tags/SpammersRuinEverything\" class=\"mention hashtag\" rel=\"tag\">#<span>SpammersRuinEverything</span></a></p>", "contentMap": { "en": "<p>Hey internet infrastructure nerds:<br />Do we know anyone anywhere near<br />sbcglobal_postmaster@abuse-att.net who could speak to why mail from lse that goes through them and particularly through* prodigy.net keeps being rejected as &quot;Deferred: 451 4.1.8 DNS error. Cannot resolve lse.org&quot; when LSE&#39;s DNS is UP, accurate, and more stable than it’s been in years?</p><p>* through, NOT to.</p><p><a href=\"https://mastodon.sdf.org/tags/DNS\" class=\"mention hashtag\" rel=\"tag\">#<span>DNS</span></a> <a href=\"https://mastodon.sdf.org/tags/Email\" class=\"mention hashtag\" rel=\"tag\">#<span>Email</span></a> <a href=\"https://mastodon.sdf.org/tags/att\" class=\"mention hashtag\" rel=\"tag\">#<span>att</span></a>.net <a href=\"https://mastodon.sdf.org/tags/sbcglobal\" class=\"mention hashtag\" rel=\"tag\">#<span>sbcglobal</span></a> <a href=\"https://mastodon.sdf.org/tags/prodigy\" class=\"mention hashtag\" rel=\"tag\">#<span>prodigy</span></a>.net <a href=\"https://mastodon.sdf.org/tags/infrastructureIsHard\" class=\"mention hashtag\" rel=\"tag\">#<span>infrastructureIsHard</span></a> <a href=\"https://mastodon.sdf.org/tags/SpammersRuinEverything\" class=\"mention hashtag\" rel=\"tag\">#<span>SpammersRuinEverything</span></a></p>" }, "attachment": [], "tag": [ { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/dns", "name": "#dns" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/email", "name": "#email" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/att", "name": "#att" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/sbcglobal", "name": "#sbcglobal" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/prodigy", "name": "#prodigy" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/infrastructureishard", "name": "#infrastructureishard" }, { "type": "Hashtag", "href": "https://mastodon.sdf.org/tags/spammersruineverything", "name": "#spammersruineverything" } ], "replies": { "id": "https://mastodon.sdf.org/users/jbsegal/statuses/114054709825470145/replies", "type": "Collection", "first": { "type": "CollectionPage", "next": "https://mastodon.sdf.org/users/jbsegal/statuses/114054709825470145/replies?only_other_accounts=true&page=true", "partOf": "https://mastodon.sdf.org/users/jbsegal/statuses/114054709825470145/replies", "items": [] } } }