Artifakt Digital

The artifakt Hashtag Plugin allows you to easily and quickly make keywords 
searchable across your website, in the same way it does on other websites where 
hashtags are used. Just adding the # symbol in front of a word or phrase makes 
it a link to the archive page of that hashtag.
Originally this plugin simply created links to a search results page for the 
hashtags, and that worked well but we got to thinking about SEO and how it 
would be nice to index the hashtags on your site. So we created a custom taxonomy 
“Hashtags” (duh) so now you have some options on how you display the archive 
pages and the SEO meta for the pages (if you are so inclinded). You could even 
create a tag cloud of all your hashtags using WordPress’ tag cloud widget.
We are leaving all the customizing of the archive pages and SEO work up to you 
and your theme but your options are much more plentyful since version 2.0
Have fun! And as always, please let us know if there are any issues or 
features you’d like to see.

The artifakt Hashtag Plugin

This plugin makes #hashtagged keywords searchable across your website.

Kyrie

“Characters starting with #” will be tag links. 「#から始まる文字」がタグリンクになります。Like Instagram. Like note-mu. Mobile-Friendly. You can choose whether to save tags in post.
<pre><code>this #sampletag are displayed as a posted tag link.
↓
this <a href="tag/sampletag">#sampletag</a> are displayed as a posted tag link.
</code></pre>
<ul>
<li>
You can choose whether to save tags in post. タグを投稿に保存する/しないを選べます。
</li>
<li>
You can specify the maximum number of characters in which hash tags are recognized as tags.(the initial value is 15)(Unlimited at 0) 
タグとして認識する最大文字数を指定できます。(デフォルトは15、0は無制限)
</li>
</ul>
These are not recognized 
 * Characters beginning with two or more #(##example) 
 * HTML color codes(ex.#cccfff) 
 * Only numeric(ex.#123456) 
 * 
複数シャープから始まるタグ、カラーコードに該当するタグ、数字のみのタグなどは認識しません。元々リンクして書かれている場合も書き換わりません。
You can escape beginning with minus -(-#example) 
マイナスを付けると、タグにもリンクにもならず、マイナスが除去された #文字列 となります(エスケープ)
Other examples 
<a href="https://kyrie.cloud/web/1306#i-3" rel="nofollow ugc"> https://kyrie.cloud/web/1306#i-3</a>
This is Mobile-Friendly plugin. 
 シンプルな設定画面なのでスマホからも設定しやすいです。
<h3>bug report</h3>
<a href="https://kyrie.cloud/web/1306" rel="nofollow ugc"> https://kyrie.cloud/web/1306</a>

Hash Hash Tags

"Characters starting with #" will be tag links. 「#から始まる文字」がタグリンクになります。Like Instagram. Like note-mu. Mobile-Friendly.

The artifakt Hashtag Plugin vs Hash Hash Tags