Extra HTML Tags

This set of HTML tags contains tags that are probably safe to support, but not necessary for Note objects. Here, we take the attitude that a Note is something akin to a a microblogging post.

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/vze6G3VwqU4",
  "published": "2025-10-04T15:40:21Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/KEIcV0UDRC8",
    "published": "2025-10-04T15:40:21Z",
    "content": "<small>small</small>"
  }
}

sharkey

{
  "id": "adg07iq0l0mw000o",
  "uri": "http://pasture-one-actor/object/KEIcV0UDRC8",
  "url": "http://pasture-one-actor/object/KEIcV0UDRC8",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 19,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p><small>small</small></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "<small>small</small>",
  "created_at": "2025-10-04T15:40:21.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/pfXg5v-vq0Y",
  "published": "2025-10-04T15:40:21Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/tkXmCY6CEsw",
    "published": "2025-10-04T15:40:21Z",
    "content": "<h1>h1</h1>"
  }
}

sharkey

{
  "id": "adg07iq0l0mw000p",
  "uri": "http://pasture-one-actor/object/tkXmCY6CEsw",
  "url": "http://pasture-one-actor/object/tkXmCY6CEsw",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 20,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p><span>**\u3010h1\u3011**</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "**\u3010h1\u3011**",
  "created_at": "2025-10-04T15:40:21.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/MkwLst6GyLQ",
  "published": "2025-10-04T15:40:22Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/7subN5jQez4",
    "published": "2025-10-04T15:40:22Z",
    "content": "<h2>h2</h2>"
  }
}

sharkey

{
  "id": "adg07jhsl0mw000q",
  "uri": "http://pasture-one-actor/object/7subN5jQez4",
  "url": "http://pasture-one-actor/object/7subN5jQez4",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 21,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p><span>**h2**</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "**h2**",
  "created_at": "2025-10-04T15:40:22.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/4KjnBygBKeM",
  "published": "2025-10-04T15:40:22Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/H9CQ_Fd6mCo",
    "published": "2025-10-04T15:40:22Z",
    "content": "<h3>h3</h3>"
  }
}

sharkey

{
  "id": "adg07jhsl0mw000r",
  "uri": "http://pasture-one-actor/object/H9CQ_Fd6mCo",
  "url": "http://pasture-one-actor/object/H9CQ_Fd6mCo",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 22,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p><span>**h3**</span></p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "**h3**",
  "created_at": "2025-10-04T15:40:22.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/Uqq94qludBY",
  "published": "2025-10-04T15:40:23Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/TZTM71wtCiA",
    "published": "2025-10-04T15:40:23Z",
    "content": "<h4>h4</h4>"
  }
}

sharkey

{
  "id": "adg07k9kl0mw000s",
  "uri": "http://pasture-one-actor/object/TZTM71wtCiA",
  "url": "http://pasture-one-actor/object/TZTM71wtCiA",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 23,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p>h4</p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "h4",
  "created_at": "2025-10-04T15:40:23.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/38am2OMet0E",
  "published": "2025-10-04T15:40:24Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/Io45T6-fJ0s",
    "published": "2025-10-04T15:40:24Z",
    "content": "<h5>h5</h5>"
  }
}

sharkey

{
  "id": "adg07l1cl0mw000t",
  "uri": "http://pasture-one-actor/object/Io45T6-fJ0s",
  "url": "http://pasture-one-actor/object/Io45T6-fJ0s",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 24,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p>h5</p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "h5",
  "created_at": "2025-10-04T15:40:24.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

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://sharkey/users/adg05og8rvr00003"
  ],
  "id": "http://pasture-one-actor/activity/FDhkqryYYwU",
  "published": "2025-10-04T15:40:24Z",
  "object": {
    "type": "Note",
    "attributedTo": "http://pasture-one-actor/actor",
    "to": [
      "https://www.w3.org/ns/activitystreams#Public",
      "http://sharkey/users/adg05og8rvr00003"
    ],
    "id": "http://pasture-one-actor/object/ENIZjweC-eg",
    "published": "2025-10-04T15:40:24Z",
    "content": "<sup>sup</sup>"
  }
}

sharkey

{
  "id": "adg07l1cl0mw000u",
  "uri": "http://pasture-one-actor/object/ENIZjweC-eg",
  "url": "http://pasture-one-actor/object/ENIZjweC-eg",
  "account": {
    "id": "adg07agxl0mw0004",
    "username": "actor",
    "acct": "actor@pasture-one-actor",
    "fqn": "actor@pasture-one-actor",
    "display_name": "Test Actor",
    "locked": false,
    "created_at": "2025-10-04T15:40:10.305Z",
    "followers_count": 0,
    "following_count": 0,
    "statuses_count": 25,
    "note": "",
    "url": "http://pasture-one-actor/actor",
    "uri": "http://pasture-one-actor/actor",
    "avatar": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "avatar_static": "https://dev.joinsharkey.org/static-assets/avatar.png",
    "header": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "header_static": "https://dev.joinsharkey.org/static-assets/transparent.png",
    "emojis": [],
    "moved": null,
    "fields": [],
    "bot": false,
    "discoverable": true,
    "noindex": false,
    "group": null,
    "suspended": false,
    "limited": false
  },
  "in_reply_to_id": null,
  "in_reply_to_account_id": null,
  "reblog": null,
  "content": "<p>sup</p>",
  "content_type": "text/x.misskeymarkdown",
  "text": "sup",
  "created_at": "2025-10-04T15:40:24.000Z",
  "edited_at": null,
  "emojis": [],
  "replies_count": 0,
  "reblogs_count": 0,
  "favourites_count": 0,
  "reblogged": false,
  "favourited": false,
  "muted": false,
  "sensitive": false,
  "spoiler_text": "",
  "visibility": "public",
  "media_attachments": [],
  "mentions": [],
  "tags": [],
  "card": null,
  "poll": null,
  "application": null,
  "language": null,
  "pinned": false,
  "bookmarked": false,
  "quote": null,
  "reactions": []
}

Example 8

activity

{
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    {
      "Hashtag": "as:Hashtag",
      "sensitive": "as:sensitive"
    }
  ],
  "type": "Create",
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