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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/_UgYnULLjUY",
  "published": "2025-09-14T08:51:43Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/UI0pRMNgfss",
    "published": "2025-09-14T08:51:43Z",
    "content": "<b>bold</b>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 24,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:43.601094Z",
  "ap_id": "http://pasture-one-actor/object/UI0pRMNgfss",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/54IYOpP1i6M",
  "published": "2025-09-14T08:51:44Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/J1-nd2ADCjQ",
    "published": "2025-09-14T08:51:44Z",
    "content": "<strong>strong</strong>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 25,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:44.410068Z",
  "ap_id": "http://pasture-one-actor/object/J1-nd2ADCjQ",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "strong"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/3fzeGlfPdzc",
  "published": "2025-09-14T08:51:45Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/_U4KfU2_BTg",
    "published": "2025-09-14T08:51:45Z",
    "content": "<i>italic</i>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 26,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:45.211724Z",
  "ap_id": "http://pasture-one-actor/object/_U4KfU2_BTg",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/YispPnd7m78",
  "published": "2025-09-14T08:51:45Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/ItNn9zCExD8",
    "published": "2025-09-14T08:51:45Z",
    "content": "<em>emphasis</em>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 27,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:46.008856Z",
  "ap_id": "http://pasture-one-actor/object/ItNn9zCExD8",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "emphasis"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/oAj0KCC5XJY",
  "published": "2025-09-14T08:51:46Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/dj4ohAIdLqk",
    "published": "2025-09-14T08:51:46Z",
    "content": "<s>stricken</s>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 28,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:46.804813Z",
  "ap_id": "http://pasture-one-actor/object/dj4ohAIdLqk",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "stricken"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/q0rnVPSB448",
  "published": "2025-09-14T08:51:47Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/OD195JX-SUA",
    "published": "2025-09-14T08:51:47Z",
    "content": "<ol><li>ordered</li></ol>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 29,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:47.591684Z",
  "ap_id": "http://pasture-one-actor/object/OD195JX-SUA",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "ordered"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/SyXZQD-sH5o",
  "published": "2025-09-14T08:51:48Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/H5GRc8lGRkc",
    "published": "2025-09-14T08:51:48Z",
    "content": "<ul><li>unordered</li></ul>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 30,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:48.399635Z",
  "ap_id": "http://pasture-one-actor/object/H5GRc8lGRkc",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "unordered"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/XWIlaBzDm5M",
  "published": "2025-09-14T08:51:48Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/AhwfdKYsjiw",
    "published": "2025-09-14T08:51:48Z",
    "content": "<h1>h1</h1>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 31,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:49.162240Z",
  "ap_id": "http://pasture-one-actor/object/AhwfdKYsjiw",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "h1"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/QOp6knLs2sw",
  "published": "2025-09-14T08:51:49Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/S3KInRpzzYo",
    "published": "2025-09-14T08:51:49Z",
    "content": "<h2>h2</h2>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 32,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:49.938494Z",
  "ap_id": "http://pasture-one-actor/object/S3KInRpzzYo",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "h2"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/fGDuOE2dmZ4",
  "published": "2025-09-14T08:51:50Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/b8rOrwIBpnc",
    "published": "2025-09-14T08:51:50Z",
    "content": "<h3>h3</h3>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 33,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:50.756799Z",
  "ap_id": "http://pasture-one-actor/object/b8rOrwIBpnc",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "h3"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/j0ksfPEeYXE",
  "published": "2025-09-14T08:51:51Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/e4UA5XiqE5A",
    "published": "2025-09-14T08:51:51Z",
    "content": "<h4>h4</h4>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 34,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:51.524296Z",
  "ap_id": "http://pasture-one-actor/object/e4UA5XiqE5A",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "h4"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/7-e5VVS04M8",
  "published": "2025-09-14T08:51:52Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/mS7Q-1-MH8s",
    "published": "2025-09-14T08:51:52Z",
    "content": "<h5>h5</h5>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 35,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:52.372015Z",
  "ap_id": "http://pasture-one-actor/object/mS7Q-1-MH8s",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "h5"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/By-h4EqIq34",
  "published": "2025-09-14T08:51:52Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/tzuXz_OWED8",
    "published": "2025-09-14T08:51:52Z",
    "content": "<code>code</code>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 36,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:53.109459Z",
  "ap_id": "http://pasture-one-actor/object/tzuXz_OWED8",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "code"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/Rbmo0lO1Ikg",
  "published": "2025-09-14T08:51:53Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/AXVv3_8WGMc",
    "published": "2025-09-14T08:51:53Z",
    "content": "<pre>pre</pre>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 37,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:53.909708Z",
  "ap_id": "http://pasture-one-actor/object/AXVv3_8WGMc",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "pre"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/iRvJFM0sFkQ",
  "published": "2025-09-14T08:51:54Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/A3ishqj1gl0",
    "published": "2025-09-14T08:51:54Z",
    "content": "<blockquote>blockquote</blockquote>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 38,
  "user_id": 2,
  "community_id": 1,
  "title": "[Microblog] blockquote",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:54.688182Z",
  "ap_id": "http://pasture-one-actor/object/A3ishqj1gl0",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "blockquote"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/FatPzrgWyb0",
  "published": "2025-09-14T08:51:55Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/GIR7W0wEHSo",
    "published": "2025-09-14T08:51:55Z",
    "content": "line<br>break",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 39,
  "user_id": 2,
  "community_id": 1,
  "title": "[Microblog] line break",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:55.460592Z",
  "ap_id": "http://pasture-one-actor/object/GIR7W0wEHSo",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "linebreak"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/9t_iTNGhSD8",
  "published": "2025-09-14T08:51:56Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/CkEqBX6sn84",
    "published": "2025-09-14T08:51:56Z",
    "content": "<p>paragraph</p>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 40,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:56.191084Z",
  "ap_id": "http://pasture-one-actor/object/CkEqBX6sn84",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "paragraph"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/hl-yHcMGyPY",
  "published": "2025-09-14T08:51:56Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/nBd4bygEyAs",
    "published": "2025-09-14T08:51:56Z",
    "content": "<small>small</small>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 41,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:56.976108Z",
  "ap_id": "http://pasture-one-actor/object/nBd4bygEyAs",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "small"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/sI_gV07351A",
  "published": "2025-09-14T08:51:57Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/1Ddc3Xpe3ZA",
    "published": "2025-09-14T08:51:57Z",
    "content": "<sup>sup</sup>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 42,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:57.783198Z",
  "ap_id": "http://pasture-one-actor/object/1Ddc3Xpe3ZA",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "sup"
}

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": [
    "http://pyfedi.local/c/pie",
    "https://www.w3.org/ns/activitystreams#Public"
  ],
  "id": "http://pasture-one-actor/activity/R_2DlztrZ5c",
  "published": "2025-09-14T08:51:58Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://pyfedi.local/c/pie"
    ],
    "id": "http://pasture-one-actor/object/ywQgcy1GED8",
    "published": "2025-09-14T08:51:58Z",
    "content": "<sub>sub</sub>",
    "tag": [
      {
        "type": "Mention",
        "href": "http://pyfedi.local/c/pie"
      }
    ]
  }
}

pyfedi

{
  "id": 43,
  "user_id": 2,
  "community_id": 1,
  "title": "(content in post body)",
  "deleted": false,
  "nsfw": false,
  "sticky": false,
  "published": "2025-09-14T08:51:58.603935Z",
  "ap_id": "http://pasture-one-actor/object/ywQgcy1GED8",
  "local": false,
  "language_id": 2,
  "removed": false,
  "locked": false,
  "body": "sub"
}