check up

verb3

1. •
   To verify through brief investigation or revisit for assurance that there are no problems.

   • I dropped by to check up on my friend.
2. •
   To verify something's accuracy.

   • He's checking up the figures.
3. •
   To seem correct or plausible; to comport with known facts; to check out (with other facts).

   • The numbers she provided check up with my own data.