diff --git a/docs/numbus-server/configuration/automatic_ssl_certs.md b/docs/numbus-server/configuration/automatic_ssl_certs.md
index 3df10c0..5486db2 100644
--- a/docs/numbus-server/configuration/automatic_ssl_certs.md
+++ b/docs/numbus-server/configuration/automatic_ssl_certs.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## 🚦 Configuring Traefik
 
diff --git a/docs/numbus-server/configuration/custom_subdomain.md b/docs/numbus-server/configuration/custom_subdomain.md
new file mode 100644
index 0000000..b110052
--- /dev/null
+++ b/docs/numbus-server/configuration/custom_subdomain.md
@@ -0,0 +1,34 @@
+# Numbus Server documentation
+
+## 🌍 Using custom subdomains
+
+**By default**, the name of the service will be the **subdomain**. For example, nextcloud will get the "nextcloud" subdomain. You **should change** those subdomains :
+- If you are using the **same domain name** for **multiple servers** (avoids conflicts)
+- If you just **want** to change them
+
+<br>
+
+> To change the subdomain of a service, just create a variable in the **.conf** configuration file like so : **<THE_SERVICE>_SUBDOMAIN="your_custom_subdomain".** If you are you are unsure of the correct service name, check the list below.
+
+## Variables list
+
+| Variable  | Default |
+| --------- |  ------ |
+| PI_HOLE_SUBDOMAIN | pi-hole |
+| ADGUARD_SUBDOMAIN | adguard |
+| CRAFFY_SUBDOMAIN | crafty |
+| FRIGATE_SUBDOMAIN | frigate |
+| GITEA_SUBDOMAIN | gitea |
+| HOME_ASSISTANT_SUBDOMAIN | home-assistant |
+| HOMEPAGE_SUBDOMAIN | homepage |
+| IMMICH_SUBDOMAIN | immich |
+| IT_TOOLS_SUBDOMAIN | it-tools |
+| JELLYFIN_SUBDOMAIN | jellyfin |
+| N8N_SUBDOMAIN | n8n |
+| NETBOOTXYZ_SUBDOMAIN | netbootxyz |
+| NEXTCLOUD_SUBDOMAIN | nextcloud |
+| NTFY_SUBDOMAIN | ntfy |
+| ODOO_SUBDOMAIN | odoo |
+| PASSBOLT_SUBDOMAIN | passbolt |
+| UPTIME_KUMA_SUBDOMAIN | uptime-kuma |
+| VSCODIUM_SUBDOMAIN | vscodium |
\ No newline at end of file
diff --git a/docs/numbus-server/configuration/index.md b/docs/numbus-server/configuration/index.md
index f0dae2e..a88d970 100644
--- a/docs/numbus-server/configuration/index.md
+++ b/docs/numbus-server/configuration/index.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## ✏️ Filling the configuration file
 
diff --git a/docs/numbus-server/configuration/live_target.md b/docs/numbus-server/configuration/live_target.md
index 93c1787..f351f45 100644
--- a/docs/numbus-server/configuration/live_target.md
+++ b/docs/numbus-server/configuration/live_target.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ### 📦 Configuring the target settings
 
diff --git a/docs/numbus-server/configuration/mail.md b/docs/numbus-server/configuration/mail.md
index fc69931..b4855a1 100644
--- a/docs/numbus-server/configuration/mail.md
+++ b/docs/numbus-server/configuration/mail.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## 📬 Configuring the mail settings
 
diff --git a/docs/numbus-server/configuration/network.md b/docs/numbus-server/configuration/network.md
index 665aa6a..86e8669 100644
--- a/docs/numbus-server/configuration/network.md
+++ b/docs/numbus-server/configuration/network.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## 🛜 Configuring the server's network settings
 
diff --git a/docs/numbus-server/configuration/script.md b/docs/numbus-server/configuration/script.md
index 2eb5224..ced492b 100644
--- a/docs/numbus-server/configuration/script.md
+++ b/docs/numbus-server/configuration/script.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## 📜 Configuring the script's settings
 
diff --git a/docs/numbus-server/configuration/server.md b/docs/numbus-server/configuration/server.md
index ddc7fd7..c4965e9 100644
--- a/docs/numbus-server/configuration/server.md
+++ b/docs/numbus-server/configuration/server.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## ⚙️ Configuring the server settings
 
diff --git a/docs/numbus-server/configuration/services/crafty.md b/docs/numbus-server/configuration/services/crafty.md
index 2f940c0..0ed5cfc 100644
--- a/docs/numbus-server/configuration/services/crafty.md
+++ b/docs/numbus-server/configuration/services/crafty.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## ⛏️ Configuring Crafty Controller
 
diff --git a/docs/numbus-server/configuration/services/index.md b/docs/numbus-server/configuration/services/index.md
index 666dc63..44b8713 100644
--- a/docs/numbus-server/configuration/services/index.md
+++ b/docs/numbus-server/configuration/services/index.md
@@ -1,4 +1,4 @@
-# Documentation
+# Numbus Server documentation
 
 ## 🛠️ Configuring the server's services
 
@@ -7,35 +7,33 @@
 | SELECTED_DNS_SERVICE | The DNS service to install (AdBlocking). | ( "pi-hole" ), ( "adguard" ) | ( "pi-hole" ) |
 | SELECTED_WEB_APPLICATIONS | The list of web applications to install. | ( "nextcloud" ), ( "homepage" jellyfin" "it-tools" "netbootxyz" ), ... [see the full list below](./index.md#web-applications-list) |  |
 | SELECTED_SYSTEM_SERVICES | The list of system services to install. | ( "clamav" ), ( "virtualization" "clamav" ), ... [see the full list below](./index.md#system-services-list) |  |
-| SELECTED_DNS_SERVICE_SUBDOMAIN | Custom subdomain for the DNS service. | "my-dns" | Will be the name of the service. I.e. pi-hole.your-domain.com or adguard.your-domain.com |
-| SELECTED_WEB_APPLICATIONS_SUBDOMAIN | Custom subdomains for the web applications (must match the order of SELECTED_WEB_APPLICATIONS). | "my-cloud", "my-photos" | Will be the name of the service. I.e. nextcloud.your-domain.com, immich.your-domain.com, ... |
+| SELECTED_DNS_SERVICE_[subdomain](../custom_subdomain.md) | Custom [subdomain](../custom_subdomain.md) for the DNS service. | "my-dns" | Will be the name of the service. I.e. pi-hole.your-domain.com or adguard.your-domain.com |
+| SELECTED_WEB_APPLICATIONS_[subdomain](../custom_subdomain.md) | Custom [subdomain](../custom_subdomain.md)s for the web applications (must match the order of SELECTED_WEB_APPLICATIONS). | "my-cloud", "my-photos" | Will be the name of the service. I.e. nextcloud.your-domain.com, immich.your-domain.com, ... |
 
 ## Web applications list
 
-This is the list of **all the available apps** that can be enabled on the numbus-server. You can choose as many as you want, just **keep in mind** that enabling more apps will be more resource **intensive** and consume more power.
+This is the list of **all the available apps** that can be enabled on the numbus-server. You can choose as many as you want, just **keep in mind** that enabling more apps will be more resource **intensive** and consume **more power**.
 
-| Name | Description | Additional settings ? |
+| Name | Description | Additional settings |
 | -------- | ----------- | ------ |
-| pi-hole | Simple, fully open network-wide Ad Blocker. | No |
-| adguard | Feature-rich network-wide Ad Blocker. | No |
-| crafty | Minecraft server(s) manager. | [Yes](./crafty.md) |
-| frigate | NVR with real-time local object detection. | No |
-| gitea | Painless self-hosted Git service. | No |
-| home-assistant | Open source home automation. | No |
-| homepage | A modern, secure, highly customizable dashboard. | No |
-| immich | High performance self-hosted photo/video management. | No |
-| it-tools | Collection of online tools for developers. | No |
-| jellyfin | The Free Software Media System. | No |
-| n8n | Workflow automation tool. | No |
-| netbootxyz | Network boot operating system installers. | No |
-| nextcloud | Self-hosted collaboration platform. | No |
-| ntfy | Send push notifications via HTTP. | No |
-| odoo | Open Source ERP and CRM. | No |
-| passbolt | Open source password manager. | No |
-| uptime-kuma | Self-hosted monitoring tool. | No |
-| vscodium | VS Code in your browser. | No |
-| clamav | Open-source anti-virus. | No |
-| virtualization | Run Virtual Machines (KVM/QEMU). | No |
+| pi-hole | Simple, fully open network-wide Ad Blocker. | [subdomain](../custom_subdomain.md) |
+| adguard | Feature-rich network-wide Ad Blocker. | [subdomain](../custom_subdomain.md) |
+| crafty | Minecraft server(s) manager. | [subdomain](../custom_subdomain.md), [settings](./crafty.md) |
+| frigate | NVR with real-time local object detection. | [subdomain](../custom_subdomain.md) |
+| gitea | Painless self-hosted Git service. | [subdomain](../custom_subdomain.md) |
+| home-assistant | Open source home automation. | [subdomain](../custom_subdomain.md) |
+| homepage | A modern, secure, highly customizable dashboard. | [subdomain](../custom_subdomain.md) |
+| immich | High performance self-hosted photo/video management. | [subdomain](../custom_subdomain.md) |
+| it-tools | Collection of online tools for developers. | [subdomain](../custom_subdomain.md) |
+| jellyfin | The Free Software Media System. | [subdomain](../custom_subdomain.md) |
+| n8n | Workflow automation tool. | [subdomain](../custom_subdomain.md) |
+| netbootxyz | Network boot operating system installers. | [subdomain](../custom_subdomain.md) |
+| nextcloud | Self-hosted collaboration platform. | [subdomain](../custom_subdomain.md) |
+| ntfy | Send push notifications via HTTP. | [subdomain](../custom_subdomain.md) |
+| odoo | Open Source ERP and CRM. | [subdomain](../custom_subdomain.md) |
+| passbolt | Open source password manager. | [subdomain](../custom_subdomain.md) |
+| uptime-kuma | Self-hosted monitoring tool. | [subdomain](../custom_subdomain.md) |
+| vscodium | VS Code in your browser. | [subdomain](../custom_subdomain.md) |
 
 ## System services list