I’m looking for a plugin or a setting which can add a warning page before redirecting to an external link in any topic, of-course on a self hosted discourse instance. The intention is to prevent phishing attacks.

You can rewrite external links using a theme-component as described by Redirect Page for External URLs - #14 by Johani

Alright. While exploring, I found this plugin GitHub - discourse/discourse-affiliate · GitHub which I guess can be forked and modified for my use-case. What do you say?

That’s even better, as it will affect how the links are saved in the database.

Oh! Does that mean existing topics won’t have this change if I add this plugin now?

You can Rebake all posts matching a pattern to change old posts.

We also have this old topic on the matter [תמונה] Preventing malicious linking Feature Continuing the discussion from How Coinbase Uses Discourse to Educate Customers and Improve SEO : If I understand, that warning would be shown to anyone who clicks on a lin…

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codinghorror (Jeff Atwood) 13 בפברואר,‏ 2021,‏ 4:39am 7

We also have this old topic on the matter

נושא		תגובות	צפיות
Preventing malicious linking Feature	34	5062	24 בדצמבר,‏ 2017
Redirect Page for External URLs Support	14	3360	9 באפריל,‏ 2020
Link warning outside of forums Feature	3	1068	9 בנובמבר,‏ 2017
External Link Shield – Exit Confirmation & Trust Gating Theme component	16	583	15 בספטמבר,‏ 2026
Plugin to rewrite external links on new posts Marketplace	3	699	17 באפריל,‏ 2018

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