the.com/sentry

The one app crash report that arrives after you've already gone to bed.

means A soldier or guard posted to watch over a place and sound the alarm if trouble approaches.

from From 'sentinel,' which traces back to Italian 'sentinella' and ultimately the Latin 'sentire,' meaning 'to perceive or feel.' A sentry's whole job is written into that root — to sense danger before anyone else does. 'Sentry' emerged in English in the 1600s as a clipped, practical shorthand for the older, fancier 'sentinel' — fitting for a job that's mostly standing still and staying alert, not standing on ceremony.

origin
Started as an IRC bot at Disqus in 2008
job
Catches errors so users don't have to report them
irony
Monitoring software that occasionally goes down itself
scale
Tracks crashes across millions of apps worldwide
the.com · every word