Random website on browser

@resham7998 sounds more like a software problem than a repair issue. I would suggest that you clear your cache and your browser history etc. Backup all of your pictures and files you an't afford to lose. Then do a reset on your phone.

"Open Settings, and then swipe to and tap Apps. Select or search for the app you want to clear. Tap Storage, and then tap Clear cache. Note: The only way to clear the cache on every app at the same time would be to perform a factory reset on your phone." from here