Hello,
I just discovered that, when you google "Dolphin" in Germany, the first website listed is the URL https://www.de.dolphin-emu.org/. When you click on it, the browser will go crazy due to an invalid certificate. I'm seeing that Dolphin uses a Let's Encrypt wildcard certificate, which is valid for all first-level subdomains of dolphin-emu.org, like de.dolphin-emu.org, but sadly it's not valid for www.de.dolphin-emu.org. It appears that the website itself does no longer actively use the www prefix (changing the language redirects you to a site without the www), but it's still a valid URL in the Google search results, which could scare new users.
I would recommend implementing a permanent redirect that strips out www on subdomains. This should cause the Google crawler bot to update it's URLs and resolves this issue.
I just discovered that, when you google "Dolphin" in Germany, the first website listed is the URL https://www.de.dolphin-emu.org/. When you click on it, the browser will go crazy due to an invalid certificate. I'm seeing that Dolphin uses a Let's Encrypt wildcard certificate, which is valid for all first-level subdomains of dolphin-emu.org, like de.dolphin-emu.org, but sadly it's not valid for www.de.dolphin-emu.org. It appears that the website itself does no longer actively use the www prefix (changing the language redirects you to a site without the www), but it's still a valid URL in the Google search results, which could scare new users.
I would recommend implementing a permanent redirect that strips out www on subdomains. This should cause the Google crawler bot to update it's URLs and resolves this issue.