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Add support for Google gtags (Google Analytics v4) #64

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Add support for Google gtags (Google Analytics v4) #64

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e8808d2
Add support for Google gtags (Google Analytics v4)
f0rked Nov 1, 2020
7ce41da
Move meta tags to the beginning of the head
f0rked Nov 4, 2020
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3 changes: 3 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -38,8 +38,11 @@ Additionally, you may choose to set the following optional variables:
```yml
show_downloads: ["true" or "false" to indicate whether to provide a download URL]
google_analytics: [Your Google Analytics tracking ID]
google_analytics_v4: [Your Google Analytics v4 (gtags) tracking ID]
```

`google_analytics` and `google_analytics_v4` are incompatible, you have to choose one of them, if both are set the later takes precedence.

### Stylesheet

If you'd like to add your own custom styles:
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13 changes: 13 additions & 0 deletions _layouts/default.html
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@@ -1,6 +1,17 @@
<!DOCTYPE html>
<html lang="{{ site.lang | default: "en-US" }}">
<head>
{% if site.google_analytics_v4 %}
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id={{ site.google_analytics_v4 }}"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());

gtag('config', '{{ site.google_analytics_v4 }}');
</script>
{% endif %}
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@f0rked good implementation allowing both support!!

Remember that to pass W3C validation the meta charset must be in the first 1024 characters of page.

Can you move the scripts blocks below, for example at end of head tag?

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@f0rked f0rked Nov 4, 2020 •
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Done, the Google script has to be the first one so I moved all the meta tags to the beginning. Now is passing the html validations.

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In my opinion should be placed after {% seo %} tag.

I have installed this theme in my sites and this is what generates:
Screenshot from 2020-11-05 22-15-14

For SEO I think it's better have the metas, title... near to top. I usually put scripts as lastest, not all browsers accepts async or defer attributes in them:

Are you agree?

<meta charset='utf-8'>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
Expand Down Expand Up @@ -35,6 +46,7 @@ <h2>{{ site.description | default: site.github.project_tagline }}</h2>
</div>

{% if site.google_analytics %}
{% unless site.google_analytics_v4 %}
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
Expand All @@ -43,6 +55,7 @@ <h2>{{ site.description | default: site.github.project_tagline }}</h2>
ga('create', '{{ site.google_analytics }}', 'auto');
ga('send', 'pageview');
</script>
{% endunless %}
{% endif %}
</body>
</html>