Procedure
Reading a new zone in 60 seconds
Terrain layout for most of these zones isn't published anywhere. The wiki's zone pages are almost all stubs, and the actual tile layout is sent by the server at runtime rather than shipped in the game files (I dug into the client's networking code to confirm this; there's a literal "set one terrain block on map" packet). So instead of guessing at terrain per zone, run this pass the first time you land somewhere new.
Glance at the ground line, not the whole mapYou only need to know if the floor under your farming spot is continuous for one screen-width in each direction - not what the rest of the zone looks like.
Test Blink in all four directions onceIf it phases you back onto solid ground from any direction you'd realistically drift toward, the spot is Blink-safe regardless of pits or ledges nearby.
Watch one full monster respawn cycleConfirm density is high enough to keep your AoE's radius full - a technically "safe" flat spot with sparse spawns is worse than a busier one that needs one extra Blink per minute.
Note the nearest portal or Goddess StatueThat's your fast way back if you do fall somewhere Blink can't recover from, and it's where you'll be running back to clear Darkness Crystals anyway.
If it fails, drop one zone and retryEvery level bracket below has 2–4 candidate zones exactly because the first one you try often isn't the best fit - sub-zones inside the same region share a level band, so the next one over usually works.