As of 2018, these are the most popular live score sites on the Web.
LiveScore.com – founded in 1998, livescore.com and livescores.com belong to the oldest and most comprehensive football live score websites out there. Unfortunately, their portals are still not mobile-friendly and reflect 20th century web design practices. They have a mobile app though, and most importantly: their score data service is super accurate.
SoccerStand.com – for soccer live scores & match results, SoccerStand.com is the place to go. Non-responsive website, best viewed on a desktop screen, or simply download their mobile app from one of the app stores.
FlashScore.com – another one of the top live score sites is FlashScore.com, they have a pretty good mobile app available for free in the iPhone/iPad app store and the Android (Google Play) store.
LiveScore.in – a pretty accurate site, not mobile-device-friendly, and they don’t seem to have a mobile app, either. The data they delivery, is highly useful, though.
BBC Sports – one of the most reliable websites is the BBC Sports Edition. They cover a wide range of competitions around the world, with a high accuracy.
365scores.com – 365scores offers a mobile-only live score service, providing you with real-time notifications of your selected clubs and competitions, along with the latest goals, statistics, highlights and news – everything available in one application, free of charge, at your fingertips! Download their free mobile app from the Windows Phone Store, the App Store and/or from the Google Play store!