Is Linking a Carabiner to Another Carabiner Safe?

By A Mystery Man Writer

Old School Tools - opposite and opposed carabiners — Alpine Savvy

Skip the carabiner in the top jumar hole — Alpine Savvy

These carabiners aren't safe for anything. [xpost /r/mildlyinteresting] : r/climbing

Choosing a Belay Carabiner

Herwey Climbing Gear Carabiner Safety Snap Hook,M10 Climbing Gear Carabiner Quick Links Safety Snap Hook Stainless Steel Screw Lock,Gear Carabiner Quick Links Safety Snap Hook

304 Stainless Steel Screw Lock Climbing Gear Carabiner Quick Links Safety Snap Hook Chain Connecting Ring Carabiner Chain Buckle - AliExpress

Is it safe to tie a climbing rope to a carabiner for top-roping/lead climbing during rock climbing (outdoor and indoor)? Why? - Quora

Which types of carabiners are used for climbing?

How To Guides Carabiners Buying Guide

safety - Climbing attached to a carabiner rather than tying in - The Great Outdoors Stack Exchange

Carabiner Strength Ratings - COMMON CLIMBER