It came out today that DeckCheck.net is shutting down, the owner published the following note at the top of the site.
Please note: Because of recent activities from WotC's side (for smaller partsĀ this and for bigger partsĀ this), this site will be taken down on October, 22nd. It's my decision and not some sort of take-down from Hasbro. I do it, because I don't support a game, that doesn't support its players. I will not sell the site, the domain, or my database, so please refrain from asking.
A big "Thank you very very much!!" to all the players, TOs and judges who submitted decklists and who supported this site during its time being.
Yours truly, EvilBernd.
DeckCheck.net, along with StarCityGames.com is one of the top resources for deck lists online, its loss will be felt by the Magic community.
Source: @StarCityGames and MTGsalvation