diff --git a/include/ircd/js/context.h b/include/ircd/js/context.h
index 0d22f6b1a..af9ceae0d 100644
--- a/include/ircd/js/context.h
+++ b/include/ircd/js/context.h
@@ -117,6 +117,8 @@ JSCompartment *current_compartment(context &);
 JSCompartment *current_compartment();
 JSObject *current_global(context &c);
 JSObject *current_global();                      // thread_local
+JS::Zone *current_zone(context &);
+JS::Zone *current_zone();
 
 // Memory
 void set(context &c, const JSGCParamKey &, const uint32_t &val);
@@ -183,6 +185,18 @@ pending_exception(const context &c)
 	return JS_IsExceptionPending(c);
 }
 
+inline JS::Zone *
+current_zone()
+{
+	return current_zone(*cx);
+}
+
+inline JS::Zone *
+current_zone(context &c)
+{
+	return ::js::GetContextZone(c);
+}
+
 inline JSObject *
 current_global()
 {
@@ -195,6 +209,18 @@ current_global(context &c)
 	return JS::CurrentGlobalOrNull(c);
 }
 
+inline JSCompartment *
+current_compartment()
+{
+	return current_compartment(*cx);
+}
+
+inline JSCompartment *
+current_compartment(context &c)
+{
+	return ::js::GetContextCompartment(c);
+}
+
 inline void
 priv(context &c,
      privdata *const &ptr)
diff --git a/include/ircd/js/runtime.h b/include/ircd/js/runtime.h
index 799185612..9b97502d0 100644
--- a/include/ircd/js/runtime.h
+++ b/include/ircd/js/runtime.h
@@ -34,6 +34,8 @@ class runtime
 	static void handle_gc(JSRuntime *, JSGCStatus, void *) noexcept;
 	static void handle_finalize(JSFreeOp *, JSFinalizeStatus, bool is_compartment, void *) noexcept;
 	static void handle_telemetry(int id, uint32_t sample, const char *key) noexcept;
+	static void handle_zone_sweep(JS::Zone *) noexcept;
+	static void handle_zone_destroy(JS::Zone *) noexcept;
 	static void handle_compartment_name(JSRuntime *, JSCompartment *, char *buf, size_t) noexcept;
 	static void handle_compartment_destroy(JSFreeOp *, JSCompartment *) noexcept;
 	static bool handle_context(JSContext *, uint op, void *) noexcept;
diff --git a/ircd/js.cc b/ircd/js.cc
index 497fd089e..f5ba4202d 100644
--- a/ircd/js.cc
+++ b/ircd/js.cc
@@ -2216,18 +2216,6 @@ ircd::js::set(context &c,
 	JS_SetGCParameter(c.runtime(), key, val);
 }
 
-JSCompartment *
-ircd::js::current_compartment()
-{
-	return current_compartment(*cx);
-}
-
-JSCompartment *
-ircd::js::current_compartment(context &c)
-{
-	return ::js::GetContextCompartment(c);
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 //
 // ircd/js/timer.h
@@ -2410,6 +2398,8 @@ ircd::js::runtime::runtime(const struct opts &opts,
 	JS_SetGCCallback(get(), handle_gc, nullptr);
 	JS_AddFinalizeCallback(get(), handle_finalize, nullptr);
 	JS_SetAccumulateTelemetryCallback(get(), handle_telemetry);
+	JS_SetSweepZoneCallback(get(), handle_zone_sweep);
+	JS_SetDestroyZoneCallback(get(), handle_zone_destroy);
 	JS_SetCompartmentNameCallback(get(), handle_compartment_name);
 	JS_SetDestroyCompartmentCallback(get(), handle_compartment_destroy);
 	JS_SetContextCallback(get(), handle_context, nullptr);
@@ -2504,9 +2494,11 @@ ircd::js::runtime::handle_compartment_destroy(JSFreeOp *const fop,
                                               JSCompartment *const compartment)
 noexcept
 {
-	log.debug("runtime(%p): compartment(%p) destroy: fop(%p)",
+	log.debug("runtime(%p): compartment: %p %s%sdestroy: fop(%p)",
 	          (const void *)(our_runtime(*fop).ptr()),
 	          (const void *)compartment,
+	          ::js::IsSystemCompartment(compartment)? "[system] " : "",
+	          ::js::IsAtomsCompartment(compartment)? "[atoms] " : "",
 	          (const void *)fop);
 }
 
@@ -2524,6 +2516,28 @@ noexcept
 	          max);
 }
 
+void
+ircd::js::runtime::handle_zone_destroy(JS::Zone *const zone)
+noexcept
+{
+	log.debug("runtime(%p): zone: %p %s%sdestroy",
+	          (const void *)rt,
+	          (const void *)zone,
+	          ::js::IsSystemZone(zone)? "[system] " : "",
+	          ::js::IsAtomsZone(zone)? "[atoms] " : "");
+}
+
+void
+ircd::js::runtime::handle_zone_sweep(JS::Zone *const zone)
+noexcept
+{
+	log.debug("runtime(%p): zone: %p %s%ssweep",
+	          (const void *)rt,
+	          (const void *)zone,
+	          ::js::IsSystemZone(zone)? "[system] " : "",
+	          ::js::IsAtomsZone(zone)? "[atoms] " : "");
+}
+
 void
 ircd::js::runtime::handle_telemetry(const int id,
                                     const uint32_t sample,