Slowly changing external links on https://timeline.kde.org/

I have checked the links on https://timeline.kde.org/ 

These are the results: 

Web pages or servers missing:
https://kdenlive.org/en/fund/
https://poddery.com/posts/4691002
https://br.qtcon.org/2017/ 

Redirection out of context
http://www.grancanariadesktopsummit.org/ redirected to
https://halalfreak.com 

Redirections because of changed structure of pages
http://tysontan.deviantart.com/art/Konqi-ver-2-494267237 redirected to
https://www.deviantart.com/tysontan/art/Konqi-ver-2-494267237
https://www.kde.org/announcements/visualguide-4.0-alpha1.php redirected
to https://kde.org/announcements/visualguide-4.0-alpha1/
https://www.kde.org/announcements/announce-4.0-platform-rc1.php
redirected to https://kde.org/announcements/announce-4.0-platform-rc1/
https://www.kde.org/announcements/announce-3.5.php redirected to
https://kde.org/announcements/announce-3.5/
https://www.kde.org/announcements/plasma-5.5.0.php redirected to
https://kde.org/announcements/plasma-5.5.0/ 

Some protocols http were replaced by https but I omitted those.

Maybe first part should be corrected. 

Regards 

Matjaž Jeran
e-mail: [email protected]