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Generalized meta tags documentation

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squidfunk 2020-08-10 12:50:37 +02:00
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docs/reference/meta-tags.md
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@ -77,59 +77,58 @@ extra:
## Customization
### Open Graph
In order to add [Open Graph][1] data to your document, you can [extend the
theme][7] and [override the `extrahead` block][8] to add the respective `meta`
tags to the template:
In order to add `meta` tags to your document, you can [extend the theme][7] and
simply [override the `extrahead` block][8] with the respective tags, e.g. to set
policies for search engines:
``` html
{% block extrahead %}
{% set title = config.site_name %}
{% if page and page.meta and page.meta.title %}
{% set title = title ~ " - " ~ page.meta.title %}
{% elif page and page.title and not page.is_homepage %}
{% set title = title ~ " - " ~ page.title | striptags %}
{% endif %}
<meta property="og:type" content="website" />
<meta property="og:title" content="{{ title }}" />
<meta property="og:description" content="{{ config.site_description }}" />
<meta property="og:url" content="{{ page.canonical_url }}" />
<meta property="og:image" content="<url>" />
<meta property="og:image:type" content="image/png" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
<meta property="robots" content="noindex, nofollow" />
{% endblock %}
```
Some further examples, including [Open Graph][1] and [Twitter Cards][9]:
=== "Open Graph"
``` html
{% block extrahead %}
{% set title = config.site_name %}
{% if page and page.meta and page.meta.title %}
{% set title = title ~ " - " ~ page.meta.title %}
{% elif page and page.title and not page.is_homepage %}
{% set title = title ~ " - " ~ page.title | striptags %}
{% endif %}
<meta property="og:type" content="website" />
<meta property="og:title" content="{{ title }}" />
<meta property="og:description" content="{{ config.site_description }}" />
<meta property="og:url" content="{{ page.canonical_url }}" />
<meta property="og:image" content="<url>" />
<meta property="og:image:type" content="image/png" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />
{% endblock %}
```
=== "Twitter Cards"
``` html
{% block extrahead %}
{% set title = config.site_name %}
{% if page and page.meta and page.meta.title %}
{% set title = title ~ " - " ~ page.meta.title %}
{% elif page and page.title and not page.is_homepage %}
{% set title = title ~ " - " ~ page.title | striptags %}
{% endif %}
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:site" content="<username>" />
<meta name="twitter:creator" content="<username>" />
<meta name="twitter:title" content="{{ title }}" />
<meta name="twitter:description" content="{{ config.site_description }}" />
<meta name="twitter:image" content="<url>" />
{% endblock %}
```
[7]: ../customization.md#extending-the-theme
[8]: ../customization.md#overriding-blocks
### Twitter Cards
When you post links to your project documentation on [Twitter][9], it's
highly recommended to add [Twitter's `meta` tags][10] to optimize the preview
of your tweet:
``` html
{% block extrahead %}
{% set title = config.site_name %}
{% if page and page.meta and page.meta.title %}
{% set title = title ~ " - " ~ page.meta.title %}
{% elif page and page.title and not page.is_homepage %}
{% set title = title ~ " - " ~ page.title | striptags %}
{% endif %}
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:site" content="<username>" />
<meta name="twitter:creator" content="<username>" />
<meta name="twitter:title" content="{{ title }}" />
<meta name="twitter:description" content="{{ config.site_description }}" />
<meta name="twitter:image" content="<url>" />
{% endblock %}
```
You should also [check the preview][11] of your Twitter Card.
[9]: https://twitter.com
[10]: https://developer.twitter.com/en/docs/tweets/optimize-with-cards/overview/abouts-cards
[11]: https://cards-dev.twitter.com/validator
[9]: https://developer.twitter.com/en/docs/tweets/optimize-with-cards/overview/abouts-cards