One of the original half-dozen chess websites (since March 1994) has recently been updated.  http://www.logicalchess.com/  The goal of its contributing authors is to provide you with excellent content about the game of chess, without pop-up ads, without collecting your personal information, and without sending you spam.
The update includes responsive content (viewable on large and small screens), many improvements, and new content.  The site offers:

• Chess lessons on every aspect of the game.
• The best games of the best players from the earliest recorded games to Alpha Zero vs Stockfish.
• An opportunity to post your best game for the world to admire.  The Immortal Mr. Magoo from HCC’s Bill Melvin is a must see.  See also the best games from other HCC members such as John Morash, Greg Funaro, and David Hayes (the domain owner).
• Reference material, art, and great links to other information.
• And a chess story about our endgame.

http://www.logicalchecks.com/ is a sister website designed to improve your tactical skill.