Comment 0 for bug 1724950

Implement a broken link checker to prevent people going to web sites that may be up for grabs and thus exposing them to phishing, serving malware, impersonation.

Thanks to Vineet Kumar for reporting this.

I think it concerns primarily links in the editor (TinyMCE and plain text) as well as any field where you can enter a URL. External media should be fairly safe as domains need to be whitelisted in the "Allowed iframes". So having a check for them rather than when a block is on a page might suffice.