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Basic HTML tags

Here we analyze, which types of HTML tags are allowed inside the content field. Sanitizing fields is desired behavior as seen in Section B.10 of ActivityPub.

The ✅ means that the html tag was left unchanged. ❓ indicates the content was changed, by hovering over it, one can see into what.

❓ for misskey is due us not supporting checking markdown yet.

Examples

Example 1

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/QjAkS10_uwA",
  "published": "2025-09-03T18:57:28Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/0b6kvzGNP8M",
    "published": "2025-09-03T18:57:28Z",
    "content": "<b>bold</b>"
  }
}
misskey
{
  "id": "ac7wllts3t7j000u",
  "createdAt": "2025-09-03T18:57:28.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "**bold**",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/0b6kvzGNP8M",
  "clippedCount": 0
}

Example 2

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/wDBIKeJf_-E",
  "published": "2025-09-03T18:57:28Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/icr6OAs-Lm0",
    "published": "2025-09-03T18:57:28Z",
    "content": "<strong>strong</strong>"
  }
}
misskey
{
  "id": "ac7wllts3t7j000v",
  "createdAt": "2025-09-03T18:57:28.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "**strong**",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/icr6OAs-Lm0",
  "clippedCount": 0
}

Example 3

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/lAYU9fiJpUo",
  "published": "2025-09-03T18:57:29Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/X4kTQlvUI_Q",
    "published": "2025-09-03T18:57:29Z",
    "content": "<i>italic</i>"
  }
}
misskey
{
  "id": "ac7wlmlk3t7j000w",
  "createdAt": "2025-09-03T18:57:29.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "<i>italic</i>",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/X4kTQlvUI_Q",
  "clippedCount": 0
}

Example 4

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/Nm8SaE6MFys",
  "published": "2025-09-03T18:57:30Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/vMlDi6z_u2U",
    "published": "2025-09-03T18:57:30Z",
    "content": "<em>emphasis</em>"
  }
}
misskey
{
  "id": "ac7wlndc3t7j000x",
  "createdAt": "2025-09-03T18:57:30.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "<i>emphasis</i>",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/vMlDi6z_u2U",
  "clippedCount": 0
}

Example 5

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/ZkgfMROoy9g",
  "published": "2025-09-03T18:57:30Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/WJuF6WnuIeE",
    "published": "2025-09-03T18:57:30Z",
    "content": "<s>stricken</s>"
  }
}
misskey
{
  "id": "ac7wlndc3t7j000y",
  "createdAt": "2025-09-03T18:57:30.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "~~stricken~~",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/WJuF6WnuIeE",
  "clippedCount": 0
}

Example 6

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/24tCVM7MkCo",
  "published": "2025-09-03T18:57:31Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/YLMs1W8y-tU",
    "published": "2025-09-03T18:57:31Z",
    "content": "<ol><li>ordered</li></ol>"
  }
}
misskey
{
  "id": "ac7wlo543t7j000z",
  "createdAt": "2025-09-03T18:57:31.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "ordered",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/YLMs1W8y-tU",
  "clippedCount": 0
}

Example 7

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/5mDUYrj72Iw",
  "published": "2025-09-03T18:57:32Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/9p6BQweqN6o",
    "published": "2025-09-03T18:57:32Z",
    "content": "<ul><li>unordered</li></ul>"
  }
}
misskey
{
  "id": "ac7wloww3t7j0010",
  "createdAt": "2025-09-03T18:57:32.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "unordered",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/9p6BQweqN6o",
  "clippedCount": 0
}

Example 8

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/HAz8uf38pUs",
  "published": "2025-09-03T18:57:32Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/pyyG9fZiSQ0",
    "published": "2025-09-03T18:57:32Z",
    "content": "<h1>h1</h1>"
  }
}
misskey
{
  "id": "ac7wloww3t7j0011",
  "createdAt": "2025-09-03T18:57:32.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "\u3010h1\u3011",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/pyyG9fZiSQ0",
  "clippedCount": 0
}

Example 9

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/3abt1ZCcwOk",
  "published": "2025-09-03T18:57:33Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/05L8Ct_63As",
    "published": "2025-09-03T18:57:33Z",
    "content": "<h2>h2</h2>"
  }
}
misskey
{
  "id": "ac7wlpoo3t7j0012",
  "createdAt": "2025-09-03T18:57:33.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "h2",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/05L8Ct_63As",
  "clippedCount": 0
}

Example 10

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/nHFrB_mthuk",
  "published": "2025-09-03T18:57:34Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/jAtGjjGnNsk",
    "published": "2025-09-03T18:57:34Z",
    "content": "<h3>h3</h3>"
  }
}
misskey
{
  "id": "ac7wlqgg3t7j0013",
  "createdAt": "2025-09-03T18:57:34.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "h3",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/jAtGjjGnNsk",
  "clippedCount": 0
}

Example 11

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/uHb80UlX9iQ",
  "published": "2025-09-03T18:57:34Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/0Pu0qrx-bdM",
    "published": "2025-09-03T18:57:34Z",
    "content": "<h4>h4</h4>"
  }
}
misskey
{
  "id": "ac7wlqgg3t7j0014",
  "createdAt": "2025-09-03T18:57:34.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "h4",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/0Pu0qrx-bdM",
  "clippedCount": 0
}

Example 12

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/EpzZvi0DdlI",
  "published": "2025-09-03T18:57:35Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/TMWBllCnBxs",
    "published": "2025-09-03T18:57:35Z",
    "content": "<h5>h5</h5>"
  }
}
misskey
{
  "id": "ac7wlr883t7j0015",
  "createdAt": "2025-09-03T18:57:35.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "h5",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/TMWBllCnBxs",
  "clippedCount": 0
}

Example 13

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/mRlFTXndHlM",
  "published": "2025-09-03T18:57:36Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/55noVYtsbds",
    "published": "2025-09-03T18:57:36Z",
    "content": "<code>code</code>"
  }
}
misskey
{
  "id": "ac7wls003t7j0016",
  "createdAt": "2025-09-03T18:57:36.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "`code`",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/55noVYtsbds",
  "clippedCount": 0
}

Example 14

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/Q46nG9aVN14",
  "published": "2025-09-03T18:57:36Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/ZyAq6W3DSSE",
    "published": "2025-09-03T18:57:36Z",
    "content": "<pre>pre</pre>"
  }
}
misskey
{
  "id": "ac7wls003t7j0017",
  "createdAt": "2025-09-03T18:57:36.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "pre",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/ZyAq6W3DSSE",
  "clippedCount": 0
}

Example 15

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/1ulsTLFIxV8",
  "published": "2025-09-03T18:57:37Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/7mDz2nkZQfw",
    "published": "2025-09-03T18:57:37Z",
    "content": "<blockquote>blockquote</blockquote>"
  }
}
misskey
{
  "id": "ac7wlsrs3t7j0018",
  "createdAt": "2025-09-03T18:57:37.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "> blockquote",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/7mDz2nkZQfw",
  "clippedCount": 0
}

Example 16

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/3bafbgonyfg",
  "published": "2025-09-03T18:57:38Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/r_03w-nGJqI",
    "published": "2025-09-03T18:57:38Z",
    "content": "line<br>break"
  }
}
misskey
{
  "id": "ac7wltjk3t7j0019",
  "createdAt": "2025-09-03T18:57:38.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "line\nbreak",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/r_03w-nGJqI",
  "clippedCount": 0
}

Example 17

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/2rrLsQRb9cc",
  "published": "2025-09-03T18:57:38Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/V71vZJb-usI",
    "published": "2025-09-03T18:57:38Z",
    "content": "<p>paragraph</p>"
  }
}
misskey
{
  "id": "ac7wltjk3t7j001a",
  "createdAt": "2025-09-03T18:57:38.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "paragraph",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/V71vZJb-usI",
  "clippedCount": 0
}

Example 18

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/MK9rnowfd4w",
  "published": "2025-09-03T18:57:39Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/3YvMjszMmIo",
    "published": "2025-09-03T18:57:39Z",
    "content": "<small>small</small>"
  }
}
misskey
{
  "id": "ac7wlubc3t7j001b",
  "createdAt": "2025-09-03T18:57:39.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "<small>small</small>",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/3YvMjszMmIo",
  "clippedCount": 0
}

Example 19

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/oxzFwq6VpGo",
  "published": "2025-09-03T18:57:40Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/3IYEMgfUasM",
    "published": "2025-09-03T18:57:40Z",
    "content": "<sup>sup</sup>"
  }
}
misskey
{
  "id": "ac7wlv343t7j001c",
  "createdAt": "2025-09-03T18:57:40.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
      "softwareVersion": null,
      "iconUrl": null,
      "faviconUrl": null,
      "themeColor": null
    },
    "emojis": {},
    "onlineStatus": "unknown"
  },
  "text": "sup",
  "cw": null,
  "visibility": "public",
  "localOnly": false,
  "reactionAcceptance": null,
  "renoteCount": 0,
  "repliesCount": 0,
  "reactionCount": 0,
  "reactions": {},
  "reactionEmojis": {},
  "emojis": {},
  "fileIds": [],
  "files": [],
  "replyId": null,
  "renoteId": null,
  "uri": "http://pasture-one-actor/object/3IYEMgfUasM",
  "clippedCount": 0
}

Example 20

activity
{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
  "actor": "http://pasture-one-actor/actor",
  "to": [
    "https://www.w3.org/ns/activitystreams#Public",
    "http://misskey/users/ac7wjo0hjhdg0003"
  ],
  "id": "http://pasture-one-actor/activity/2Tyq0l6DH7w",
  "published": "2025-09-03T18:57:40Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://misskey/users/ac7wjo0hjhdg0003"
    ],
    "id": "http://pasture-one-actor/object/Yd9oDISz0R4",
    "published": "2025-09-03T18:57:40Z",
    "content": "<sub>sub</sub>"
  }
}
misskey
{
  "id": "ac7wlv343t7j001d",
  "createdAt": "2025-09-03T18:57:40.000Z",
  "userId": "ac7wl9qt3t7j0003",
  "user": {
    "id": "ac7wl9qt3t7j0003",
    "name": "Test Actor",
    "username": "actor",
    "host": "pasture-one-actor",
    "avatarUrl": "http://misskey/identicon/actor@pasture-one-actor",
    "avatarBlurhash": null,
    "avatarDecorations": [],
    "isBot": false,
    "isCat": false,
    "instance": {
      "name": null,
      "softwareName": null,
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