The famous website for checking live scores got the same domain name livescoredotcom I've been using them for the past 4 years and the reason why I kept on using them is the notification they send out to me and other users when a team score, also the interface of the website is easy to navigate in terms of searching for a team or sports games.
I forgot all about that one, but this was the first website I used for tracking live results.
It deserves to be mentioned so I will be adding it to the list.
I know about sofascore but they are missing some of the features I want so I don't use them so much.
Nice thing they have is graphical attack momentum.
I use
https://www.rezultati.com/! It had a bit different look, but after the last update, I can see it's the same as flashscore, completely identical, it's just on my language! It's easy to check games, there are also some nice stats for every game, lineups... all the things we need! I like when I can select the games I follow and I see only them, plus there's a notification for every goal! I am using it for years and I got used to it...
This is one of their alternative domain in different languages, I saw many of them and if their server is not working than all domains are not working.