Defending scouts never get killed except if scouting players uses Venators... Successful scouting just means that you get a report.  You may still lose some of your scouts.  Your report looks completely normal to me.

defending scouts never get killed ,offending scouts get killed ,defending scouts get killed by any other offending army than scouts .. this is new for me ..(somewhat defeats the purpose)..

Thanks for replying

Thanks BOISDEJUSTICE and DRAG-THESEUS , can you tell me is there a way to determine how much scout will return after successful spying?

Moreover, if the player has higher level his spies it's normal to inflict more damage to yours Archon!