diff --git a/README.md b/README.md
index 8b2b000..07649b9 100644
--- a/README.md
+++ b/README.md
@@ -64,10 +64,17 @@ domain:
     # renewed.
     #contact_email: REQUIRED if service.http.https_addr is set
 
+  # The domain name which will be used to serve the web interface of Domani. If
+  # service.http.https_addr is enabled then an HTTPS certificate for this domain
+  # will be retrieved automatically.
+  #
+  # This can be set to null to disable the web interface entirely.
+  #interface_domain: "localhost"
+
   # builtins are domains whose configuration is built into domani. These domains
   # are not able to be configured via the web interface, and will be hidden from
   # it unless the `public` key is set to true.
-  #builtins:
+  #builtin_domains:
 
     # An example built-in domain backed by a git repo.
     #git.example.com:
@@ -79,13 +86,14 @@ domain:
       # domain list, but will not be configurable in the web interface
       #public: false
 
-  #proxied:
+  #proxied_domains:
 
-    # An example built-in domain backed by an gemini and HTTP reverse-proxies to
+    # An example proxied domain backed by an gemini and HTTP reverse-proxies to
     # other backends.
     #
     # HTTP requests will be proxied to http_url, and gemini requests will be
-    # proxied to gemini_url. Either can be null.
+    # proxied to gemini_url. Either can be null to disable serving on that
+    # protocol.
     #
     # HTTP requests to the backing service will automatically have
     # X-Forwarded-For and (if HTTPS) X-Forwarded-Proto headers added to them.
@@ -106,7 +114,8 @@ domain:
       #  - name: X-HEADER-TO-DELETE
       #    value: ""
 
-      # Set to true to prevent the domain from being served over https.
+      # Set to true to prevent the domain from being served over https, even if
+      # http_url is set.
       #https_disabled: false
 
 service:
@@ -132,13 +141,6 @@ service:
     #- kind: CNAME
     #  name: domain.com
 
-  # The domain name which will be used to serve the web interface of Domani. If
-  # service.http.https_addr is enabled then an HTTPS certificate for this domain
-  # will be retrieved automatically.
-  #
-  # This can be set to null to disable the web interface entirely.
-  #interface_domain: "localhost"
-
   #http:
 
     # The address to listen for HTTP requests on. This must use port 80 if
diff --git a/src/domain/config.rs b/src/domain/config.rs
index ee7f321..0f11fca 100644
--- a/src/domain/config.rs
+++ b/src/domain/config.rs
@@ -9,7 +9,11 @@ fn default_resolver_addr() -> net::SocketAddr {
     net::SocketAddr::from_str("1.1.1.1:53").unwrap()
 }
 
-#[derive(Deserialize, Serialize)]
+fn default_interface_domain() -> Option<domain::Name> {
+    Some(domain::Name::from_str("localhost").unwrap())
+}
+
+#[derive(Clone, Deserialize, Serialize)]
 pub struct ConfigDNS {
     #[serde(default = "default_resolver_addr")]
     pub resolver_addr: net::SocketAddr,
@@ -23,7 +27,7 @@ impl Default for ConfigDNS {
     }
 }
 
-#[derive(Deserialize, Serialize)]
+#[derive(Clone, Deserialize, Serialize)]
 pub struct ConfigACME {
     pub contact_email: String,
 }
@@ -54,7 +58,7 @@ pub struct ConfigProxiedDomain {
     pub https_disabled: bool,
 }
 
-#[derive(Deserialize, Serialize)]
+#[derive(Clone, Deserialize, Serialize)]
 pub struct Config {
     pub store_dir_path: path::PathBuf,
     #[serde(default)]
@@ -62,8 +66,11 @@ pub struct Config {
     pub acme: Option<ConfigACME>,
 
     #[serde(default)]
-    pub builtins: collections::HashMap<domain::Name, ConfigBuiltinDomain>,
+    pub builtin_domains: collections::HashMap<domain::Name, ConfigBuiltinDomain>,
 
     #[serde(default)]
-    pub proxied: collections::HashMap<domain::Name, ConfigProxiedDomain>,
+    pub proxied_domains: collections::HashMap<domain::Name, ConfigProxiedDomain>,
+
+    #[serde(default = "default_interface_domain")]
+    pub interface_domain: Option<domain::Name>,
 }
diff --git a/src/domain/manager.rs b/src/domain/manager.rs
index 6265509..2844ea3 100644
--- a/src/domain/manager.rs
+++ b/src/domain/manager.rs
@@ -1,8 +1,8 @@
-use crate::domain::{self, acme, checker, config, gemini, store, tls};
+use crate::domain::{self, acme, checker, gemini, store, tls};
 use crate::error::unexpected::{self, Mappable};
 use crate::{origin, task_stack, util};
 
-use std::{collections, sync};
+use std::sync;
 use tokio_util::sync::CancellationToken;
 
 pub enum GetSettingsResult {
@@ -153,8 +153,7 @@ pub struct ManagerImpl {
     domain_checker: checker::DNSChecker,
     acme_manager: Option<Box<dyn acme::manager::Manager + Send + Sync>>,
     gemini_store: Option<Box<dyn gemini::Store + Send + Sync>>,
-    builtins: collections::HashMap<domain::Name, config::ConfigBuiltinDomain>,
-    proxied: collections::HashMap<domain::Name, config::ConfigProxiedDomain>,
+    config: domain::Config,
 }
 
 impl ManagerImpl {
@@ -170,8 +169,7 @@ impl ManagerImpl {
         domain_checker: checker::DNSChecker,
         acme_manager: Option<AcmeManager>,
         gemini_store: Option<GeminiStore>,
-        builtins: collections::HashMap<domain::Name, config::ConfigBuiltinDomain>,
-        proxied: collections::HashMap<domain::Name, config::ConfigProxiedDomain>,
+        config: domain::Config,
     ) -> sync::Arc<Self> {
         let manager = sync::Arc::new(ManagerImpl {
             origin_store: Box::from(origin_store),
@@ -180,8 +178,7 @@ impl ManagerImpl {
             acme_manager: acme_manager
                 .map(|m| Box::new(m) as Box<dyn acme::manager::Manager + Send + Sync>),
             gemini_store: gemini_store.map(|m| Box::new(m) as Box<dyn gemini::Store + Send + Sync>),
-            builtins,
-            proxied,
+            config,
         });
 
         task_stack.push_spawn(|canceller| {
@@ -289,11 +286,11 @@ impl ManagerImpl {
 
 impl Manager for ManagerImpl {
     fn get_settings(&self, domain: &domain::Name) -> Result<GetSettingsResult, GetSettingsError> {
-        if let Some(config) = self.builtins.get(domain) {
+        if let Some(config) = self.config.builtin_domains.get(domain) {
             return Ok(GetSettingsResult::Builtin(config.clone()));
         }
 
-        if let Some(config) = self.proxied.get(domain) {
+        if let Some(config) = self.config.proxied_domains.get(domain) {
             return Ok(GetSettingsResult::Proxied(config.clone()));
         }
 
@@ -330,7 +327,10 @@ impl Manager for ManagerImpl {
         settings: domain::Settings,
     ) -> util::BoxFuture<'mgr, Result<(), SyncWithSettingsError>> {
         Box::pin(async move {
-            if self.builtins.contains_key(&domain) || self.proxied.contains_key(&domain) {
+            let is_builtin = self.config.builtin_domains.contains_key(&domain);
+            let is_proxied = self.config.proxied_domains.contains_key(&domain);
+
+            if is_builtin || is_proxied {
                 return Err(SyncWithSettingsError::NotModifiable);
             }
 
@@ -384,7 +384,8 @@ impl Manager for ManagerImpl {
             })
             .collect();
 
-        self.builtins
+        self.config
+            .builtin_domains
             .iter()
             .map(|(domain, config)| ManagedDomain {
                 domain: domain.clone(),
@@ -392,7 +393,8 @@ impl Manager for ManagerImpl {
             })
             .collect_into(&mut res);
 
-        self.proxied
+        self.config
+            .proxied_domains
             .iter()
             .map(|(domain, _)| ManagedDomain {
                 domain: domain.clone(),
diff --git a/src/main.rs b/src/main.rs
index 28acc23..02f9b92 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -60,7 +60,7 @@ async fn main() {
         // Since the interface domain _must_ point to the service (otherwise it wouldn't work) it's
         // reasonable to assume that a CNAME on any domain would suffice to point that domain to
         // the service.
-        if let Some(ref interface_domain) = config.service.interface_domain {
+        if let Some(ref interface_domain) = config.domain.interface_domain {
             let interface_cname = domani::service::ConfigDNSRecord::CNAME {
                 name: interface_domain.clone(),
             };
@@ -106,6 +106,7 @@ async fn main() {
         let acme_config = config
             .domain
             .acme
+            .clone()
             .expect("acme configuration must be set if https is enabled");
 
         let domain_acme_store =
@@ -143,8 +144,7 @@ async fn main() {
         domain_checker,
         domain_acme_manager,
         domain_gemini_store,
-        config.domain.builtins.clone(),
-        config.domain.proxied.clone(),
+        config.domain.clone(),
     );
 
     let _ = domani::service::http::Service::new(
@@ -152,7 +152,8 @@ async fn main() {
         domain_manager.clone(),
         domani::domain::manager::HttpsCertResolver::from(domain_manager.clone()),
         config.service.clone(),
-        config.domain.proxied.clone(),
+        config.domain.proxied_domains.clone(),
+        config.domain.interface_domain.clone(),
     );
 
     if gemini_enabled {
@@ -161,7 +162,7 @@ async fn main() {
             domain_manager.clone(),
             domani::domain::manager::GeminiCertResolver::from(domain_manager.clone()),
             config.service.gemini.clone(),
-            config.domain.proxied.clone(),
+            config.domain.proxied_domains.clone(),
         );
     }
 
diff --git a/src/service/config.rs b/src/service/config.rs
index 35ad9ec..a79ab03 100644
--- a/src/service/config.rs
+++ b/src/service/config.rs
@@ -1,10 +1,6 @@
 use crate::{domain, service};
 use serde::{Deserialize, Serialize};
-use std::{net, str::FromStr};
-
-fn default_interface_domain() -> Option<domain::Name> {
-    Some(domain::Name::from_str("localhost").unwrap())
-}
+use std::net;
 
 #[derive(Serialize, Deserialize, Clone, PartialEq)]
 #[serde(tag = "kind")]
@@ -31,9 +27,6 @@ pub struct Config {
     #[serde(default)]
     pub dns_records: Vec<ConfigDNSRecord>,
 
-    #[serde(default = "default_interface_domain")]
-    pub interface_domain: Option<domain::Name>,
-
     #[serde(default)]
     pub http: service::http::Config,
 
diff --git a/src/service/http.rs b/src/service/http.rs
index b334fca..9f49b0f 100644
--- a/src/service/http.rs
+++ b/src/service/http.rs
@@ -15,14 +15,6 @@ use std::{collections, future, net, sync};
 use crate::error::unexpected;
 use crate::{domain, service, task_stack};
 
-pub struct Service {
-    domain_manager: sync::Arc<dyn domain::manager::Manager>,
-    cert_resolver: sync::Arc<dyn rustls::server::ResolvesServerCert>,
-    handlebars: handlebars::Handlebars<'static>,
-    config: service::Config,
-    proxied: collections::HashMap<domain::Name, domain::ConfigProxiedDomain>,
-}
-
 #[derive(Serialize)]
 struct BasePresenter<'a, T> {
     page_name: &'a str,
@@ -52,13 +44,23 @@ struct DomainSyncArgs {
     url_encoded_domain_settings: util::UrlEncodedDomainSettings,
 }
 
+pub struct Service {
+    domain_manager: sync::Arc<dyn domain::manager::Manager>,
+    cert_resolver: sync::Arc<dyn rustls::server::ResolvesServerCert>,
+    handlebars: handlebars::Handlebars<'static>,
+    config: service::Config,
+    proxied_domains: collections::HashMap<domain::Name, domain::ConfigProxiedDomain>,
+    interface_domain: Option<domain::Name>,
+}
+
 impl Service {
     pub fn new<CertResolver>(
         task_stack: &mut task_stack::TaskStack<unexpected::Error>,
         domain_manager: sync::Arc<dyn domain::manager::Manager>,
         cert_resolver: CertResolver,
         config: service::Config,
-        proxied: collections::HashMap<domain::Name, domain::ConfigProxiedDomain>,
+        proxied_domains: collections::HashMap<domain::Name, domain::ConfigProxiedDomain>,
+        interface_domain: Option<domain::Name>,
     ) -> sync::Arc<Service>
     where
         CertResolver: rustls::server::ResolvesServerCert + 'static,
@@ -70,7 +72,8 @@ impl Service {
             cert_resolver: sync::Arc::from(cert_resolver),
             handlebars: tpl::get(),
             config,
-            proxied,
+            proxied_domains,
+            interface_domain,
         });
 
         task_stack.push_spawn(|canceller| tasks::listen_http(service.clone(), canceller));
@@ -457,7 +460,7 @@ impl Service {
             }
         }
 
-        if let Some(config) = self.proxied.get(&domain) {
+        if let Some(config) = self.proxied_domains.get(&domain) {
             if let Some(ref http_url) = config.http_url {
                 return service::http::proxy::serve_http_request(
                     http_url.original_url.as_str(),
@@ -478,7 +481,7 @@ impl Service {
             }
         }
 
-        if Some(&domain) == self.config.interface_domain.as_ref() {
+        if Some(&domain) == self.interface_domain.as_ref() {
             return self.serve_interface(req).await;
         }
 
diff --git a/src/service/http/tasks.rs b/src/service/http/tasks.rs
index e266bcf..a77e26f 100644
--- a/src/service/http/tasks.rs
+++ b/src/service/http/tasks.rs
@@ -16,7 +16,6 @@ pub async fn listen_http(
 
     // only used for logging
     let listen_host = service
-        .config
         .interface_domain
         .clone()
         .map_or(addr.ip().to_string(), |ref d| d.as_str().to_string());
@@ -56,7 +55,6 @@ pub async fn listen_https(
 
     // only used for logging
     let listen_host = service
-        .config
         .interface_domain
         .clone()
         .map_or(addr.ip().to_string(), |ref d| d.as_str().to_string());