diff --git a/include/ircd/net/dns.h b/include/ircd/net/dns.h
index faa064347..2e90e976d 100644
--- a/include/ircd/net/dns.h
+++ b/include/ircd/net/dns.h
@@ -45,6 +45,11 @@ struct ircd::net::dns
 	bool query_cache(const hostport &, const opts &, const callback &);
 
   public:
+	// Cache warming
+	static const callback_A_one prefetch_A;
+	static const callback_SRV_one prefetch_SRV;
+	static const callback_ipport_one prefetch_ipport;
+
 	// Callback-based interface
 	void operator()(const hostport &, const opts &, callback);
 	void operator()(const hostport &, const opts &, callback_A_one);
diff --git a/ircd/net.cc b/ircd/net.cc
index e273a25ae..1c1825702 100644
--- a/ircd/net.cc
+++ b/ircd/net.cc
@@ -2308,6 +2308,27 @@ ircd::net::dns::cache::clear_nxdomain
 	{ "default",   43200L                             },
 };
 
+decltype(ircd::net::dns::prefetch_ipport)
+ircd::net::dns::prefetch_ipport{[]
+(std::exception_ptr, const auto &record)
+{
+	// Do nothing; cache already updated if necessary
+}};
+
+decltype(ircd::net::dns::prefetch_SRV)
+ircd::net::dns::prefetch_SRV{[]
+(std::exception_ptr, const auto &record)
+{
+	// Do nothing; cache already updated if necessary
+}};
+
+decltype(ircd::net::dns::prefetch_A)
+ircd::net::dns::prefetch_A{[]
+(std::exception_ptr, const auto &record)
+{
+	// Do nothing; cache already updated if necessary
+}};
+
 /// Convenience composition with a single ipport callback. This is the result of
 /// an automatic chain of queries such as SRV and A/AAAA based on the input and
 /// intermediate results.