peter-tanner.github.io/_posts/2024-06-29-Adding-the-canonical-tag-to-Gitea-to-prevent-duplicate-spam.md

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---
title: Adding the canonical tag to Gitea to prevent duplicate spam
author: peter
date: 2024-06-29 02:55:28 +0800
categories: [SelfHosting] # Blogging | Electronics | Programming | Mechanical
2024-10-29 17:42:47 +08:00
tags: [tip, gitea, seo] # systems | embedded | rf | microwave | electronics | solidworks | automation
# image: assets/img/2024-06-29-Adding-the-canonical/preview.png
---
Gitea doesn't include the canonical tag in their pages, leading to a lot of duplicate pages being indexed by Google. Each page being indexed has a different sorting option, or other superflous parameter.
2024-06-29 03:06:53 +08:00
> Duplicate without user-selected canonical
>
> These pages aren't indexed or served on Google
Not sure if having a lot of these errors affects SEO but I've noticed a lot of my real pages are being discovered but not indexed by Google.
![Search console page getting spammed with duplicate urls](/assets/img/2024-06-29-Adding-the-canonical/search%20console.png)
To fix this,
1. Create a `custom/templates/base/` directory under your Gitea installation. In my case it is in `/var/lib/gitea/custom/templates/base/`.
2. CD to the base directory and run `wget https://raw.githubusercontent.com/go-gitea/gitea/main/templates/base/head.tmpl`. Make sure your Gitea is updated to the latest version, or choose the right version instead of the `main` branch.
3. Modify `head.tmpl`: Add this line somewhere in the `<head>` section:
<!-- {% raw %} -->
```html
<link rel="canonical" href="{{AppUrl}}{{if $.Link}}{{slice $.Link 1}}{{end}}" />
```
<!-- {% endraw %} -->
4. Restart the gitea service