diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for gemini-router
 
+## 0.1.2.0 -- 2023-07-24
+
+* Add domain combinator
+
 ## 0.1.1.0 -- 2021-02-22
 
 * SSL/TLS support
diff --git a/Network/Gemini/Router.hs b/Network/Gemini/Router.hs
--- a/Network/Gemini/Router.hs
+++ b/Network/Gemini/Router.hs
@@ -10,6 +10,7 @@
 , runRouteT'
 -- * Building Routes
 , end
+, domain
 , dir
 , capture
 , input
@@ -31,7 +32,8 @@
 import Control.Monad.Trans.Class (MonadTrans(..))
 import Control.Monad.IO.Class (MonadIO(..))
 
-import Network.URI (uriQuery, pathSegments, unEscapeString)
+import Network.URI
+  ( uriQuery, pathSegments, unEscapeString, uriAuthority, uriRegName )
 import OpenSSL.X509 (X509)
 
 #if __GLASGOW_HASKELL__ < 808
@@ -106,6 +108,17 @@
 end r = RouteT $ \req path -> case path of
   [] -> runRouteT r req path
   _ -> pure Nothing
+
+-- | Match on a specified domain
+-- @since 0.1.2.0
+domain :: Applicative f
+       => String -- ^ What the domain must match
+       -> RouteT f a -- ^ route to run on match
+       -> RouteT f a
+domain d r = RouteT $ \req path ->
+  if Just d == fmap uriRegName (uriAuthority $ requestURI req)
+  then runRouteT r req path
+  else pure Nothing
 
 -- | Match on a specific path segment
 dir :: Applicative f
diff --git a/gemini-router.cabal b/gemini-router.cabal
--- a/gemini-router.cabal
+++ b/gemini-router.cabal
@@ -1,7 +1,7 @@
 cabal-version:       2.2
 
 name:                gemini-router
-version:             0.1.1.0
+version:             0.1.2.0
 synopsis:            A simple Happstack-style Gemini router
 description:
   This package contains a 'Router' monad transformer that works on top of the
@@ -26,8 +26,13 @@
   exposed-modules:     Network.Gemini.Router
   -- other-modules:
   other-extensions:    FlexibleInstances, CPP
-  build-depends:       base ^>=4.12.0.0 || ^>=4.13.0.0 || ^>=4.14.0.0
-                     , gemini-server ^>=0.2.0.0
+  build-depends:       base ^>=4.12
+                         || ^>=4.13
+                         || ^>=4.14
+                         || ^>=4.15
+                         || ^>=4.16
+                         || ^>=4.17
+                     , gemini-server ^>=0.2.0.0 || ^>=0.3.0.0
                      , transformers ^>=0.5.6.2
                      , network-uri ^>=2.6.3.0 || ^>=2.7.0.0
                      , HsOpenSSL ^>=0.11.5.1