diff --git a/internal/cards/calc.go b/internal/cards/calc.go
index b4275f0..81b92e0 100644
--- a/internal/cards/calc.go
+++ b/internal/cards/calc.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package cards
 
 import (
diff --git a/internal/cards/cards.go b/internal/cards/cards.go
index bf45b95..09e19a4 100644
--- a/internal/cards/cards.go
+++ b/internal/cards/cards.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package cards
 
 import (
diff --git a/internal/cards/ddg.go b/internal/cards/ddg.go
index 801f764..37994db 100644
--- a/internal/cards/ddg.go
+++ b/internal/cards/ddg.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package cards
 
 import (
diff --git a/internal/cards/metaweather.go b/internal/cards/metaweather.go
index 8dc07d5..1e22f82 100644
--- a/internal/cards/metaweather.go
+++ b/internal/cards/metaweather.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package cards
 
 import (
diff --git a/internal/cards/plot.go b/internal/cards/plot.go
index 23cd530..1454ac8 100644
--- a/internal/cards/plot.go
+++ b/internal/cards/plot.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package cards
 
 import (
diff --git a/search/web/bing.go b/search/web/bing.go
index 2bbf90d..83984a9 100644
--- a/search/web/bing.go
+++ b/search/web/bing.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package web
 
 import (
diff --git a/search/web/ddg.go b/search/web/ddg.go
index 4f9b53b..dd0f3f0 100644
--- a/search/web/ddg.go
+++ b/search/web/ddg.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package web
 
 import (
diff --git a/search/web/google.go b/search/web/google.go
index 098da6c..dd420ec 100644
--- a/search/web/google.go
+++ b/search/web/google.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package web
 
 import (
diff --git a/search/web/search.go b/search/web/search.go
index c4006af..97a4061 100644
--- a/search/web/search.go
+++ b/search/web/search.go
@@ -1,3 +1,21 @@
+/*
+ *	Scope - A simple and minimal metasearch engine
+ *	Copyright (C) 2021 Arsen Musayelyan
+ *
+ *	This program is free software: you can redistribute it and/or modify
+ *	it under the terms of the GNU Affero General Public License as published by
+ *	the Free Software Foundation, either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU Affero General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Affero General Public License
+ *	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package web
 
 import (