diff --git a/src/css.rs b/src/css.rs
index 4572e36..2a646fe 100644
--- a/src/css.rs
+++ b/src/css.rs
@@ -61,6 +61,7 @@ pub fn process_css<'a>(
     parent_url: &str,
     parser: &mut Parser,
     options: &Options,
+    depth: u32,
     rule_name: &str,
     prop_name: &str,
     func_name: &str,
@@ -114,6 +115,7 @@ pub fn process_css<'a>(
                             parent_url,
                             parser,
                             options,
+                            depth,
                             rule_name,
                             curr_prop.as_str(),
                             func_name,
@@ -175,6 +177,7 @@ pub fn process_css<'a>(
                         &parent_url,
                         &import_full_url,
                         options.silent,
+                        depth + 1,
                     ) {
                         Ok((import_contents, import_final_url, _import_media_type)) => {
                             let import_data_url = data_to_data_url(
@@ -185,6 +188,7 @@ pub fn process_css<'a>(
                                     &import_final_url,
                                     &String::from_utf8_lossy(&import_contents),
                                     options,
+                                    depth + 1,
                                 )
                                 .as_bytes(),
                                 &import_final_url,
@@ -224,6 +228,7 @@ pub fn process_css<'a>(
                                 &parent_url,
                                 &resolved_url,
                                 options.silent,
+                                depth + 1,
                             ) {
                                 Ok((data, final_url, media_type)) => {
                                     let data_url = data_to_data_url(&media_type, &data, &final_url);
@@ -310,7 +315,14 @@ pub fn process_css<'a>(
                 if is_import {
                     let full_url = resolve_url(&parent_url, value).unwrap_or_default();
                     let url_fragment = get_url_fragment(full_url.clone());
-                    match retrieve_asset(cache, client, &parent_url, &full_url, options.silent) {
+                    match retrieve_asset(
+                        cache,
+                        client,
+                        &parent_url,
+                        &full_url,
+                        options.silent,
+                        depth + 1,
+                    ) {
                         Ok((css, final_url, _media_type)) => {
                             let data_url = data_to_data_url(
                                 "text/css",
@@ -320,6 +332,7 @@ pub fn process_css<'a>(
                                     &final_url,
                                     &String::from_utf8_lossy(&css),
                                     options,
+                                    depth + 1,
                                 )
                                 .as_bytes(),
                                 &final_url,
@@ -338,13 +351,19 @@ pub fn process_css<'a>(
                         }
                     }
                 } else {
-                    if options.no_images && is_image_url_prop(curr_prop.as_str()) {
+                    if is_image_url_prop(curr_prop.as_str()) && options.no_images {
                         result.push_str(enquote(str!(empty_image!()), false).as_str());
                     } else {
                         let full_url = resolve_url(&parent_url, value).unwrap_or_default();
                         let url_fragment = get_url_fragment(full_url.clone());
-                        match retrieve_asset(cache, client, &parent_url, &full_url, options.silent)
-                        {
+                        match retrieve_asset(
+                            cache,
+                            client,
+                            &parent_url,
+                            &full_url,
+                            options.silent,
+                            depth + 1,
+                        ) {
                             Ok((data, final_url, media_type)) => {
                                 let data_url = data_to_data_url(&media_type, &data, &final_url);
                                 let assembled_url: String =
@@ -378,6 +397,7 @@ pub fn process_css<'a>(
                             parent_url,
                             parser,
                             options,
+                            depth,
                             curr_rule.as_str(),
                             curr_prop.as_str(),
                             function_name,
@@ -406,9 +426,21 @@ pub fn embed_css(
     parent_url: &str,
     css: &str,
     options: &Options,
+    depth: u32,
 ) -> String {
     let mut input = ParserInput::new(&css);
     let mut parser = Parser::new(&mut input);
 
-    process_css(cache, client, parent_url, &mut parser, options, "", "", "").unwrap()
+    process_css(
+        cache,
+        client,
+        parent_url,
+        &mut parser,
+        options,
+        depth,
+        "",
+        "",
+        "",
+    )
+    .unwrap()
 }
diff --git a/src/html.rs b/src/html.rs
index 034bc97..50285ae 100644
--- a/src/html.rs
+++ b/src/html.rs
@@ -75,6 +75,7 @@ pub fn embed_srcset(
     parent_url: &str,
     srcset: &str,
     options: &Options,
+    depth: u32,
 ) -> String {
     let mut array: Vec<SrcSetItem> = vec![];
     let srcset_items: Vec<&str> = srcset.split(',').collect();
@@ -94,7 +95,14 @@ pub fn embed_srcset(
         } else {
             let image_full_url = resolve_url(&parent_url, part.path).unwrap_or_default();
             let image_url_fragment = get_url_fragment(image_full_url.clone());
-            match retrieve_asset(cache, client, &parent_url, &image_full_url, options.silent) {
+            match retrieve_asset(
+                cache,
+                client,
+                &parent_url,
+                &image_full_url,
+                options.silent,
+                depth + 1,
+            ) {
                 Ok((image_data, image_final_url, image_media_type)) => {
                     let image_data_url =
                         data_to_data_url(&image_media_type, &image_data, &image_final_url);
@@ -138,12 +146,13 @@ pub fn walk_and_embed_assets(
     url: &str,
     node: &Handle,
     options: &Options,
+    depth: u32,
 ) {
     match node.data {
         NodeData::Document => {
             // Dig deeper
             for child in node.children.borrow().iter() {
-                walk_and_embed_assets(cache, client, &url, child, options);
+                walk_and_embed_assets(cache, client, &url, child, options, depth);
             }
         }
         NodeData::Element {
@@ -240,6 +249,7 @@ pub fn walk_and_embed_assets(
                                     &url,
                                     &link_href_full_url,
                                     options.silent,
+                                    depth + 1,
                                 ) {
                                     Ok((
                                         link_href_data,
@@ -312,6 +322,7 @@ pub fn walk_and_embed_assets(
                                     &url,
                                     &link_href_full_url,
                                     options.silent,
+                                    depth + 1,
                                 ) {
                                     Ok((
                                         link_href_data,
@@ -328,6 +339,7 @@ pub fn walk_and_embed_assets(
                                                 &link_href_final_url,
                                                 &String::from_utf8_lossy(&link_href_data),
                                                 options,
+                                                depth + 1,
                                             );
                                             let link_href_data_url = data_to_data_url(
                                                 "text/css",
@@ -406,6 +418,7 @@ pub fn walk_and_embed_assets(
                             &url,
                             &background_full_url,
                             options.silent,
+                            depth + 1,
                         ) {
                             Ok((background_data, background_final_url, background_media_type)) => {
                                 let background_data_url = data_to_data_url(
@@ -483,8 +496,14 @@ pub fn walk_and_embed_assets(
                             )
                             .unwrap_or_default();
                             let img_url_fragment = get_url_fragment(img_full_url.clone());
-                            match retrieve_asset(cache, client, &url, &img_full_url, options.silent)
-                            {
+                            match retrieve_asset(
+                                cache,
+                                client,
+                                &url,
+                                &img_full_url,
+                                options.silent,
+                                depth + 1,
+                            ) {
                                 Ok((img_data, img_final_url, img_media_type)) => {
                                     let img_data_url = data_to_data_url(
                                         &img_media_type,
@@ -521,7 +540,8 @@ pub fn walk_and_embed_assets(
                         attrs_mut.push(Attribute {
                             name: QualName::new(None, ns!(), local_name!("srcset")),
                             value: Tendril::from_slice(
-                                embed_srcset(cache, client, &url, &img_srcset, options).as_ref(),
+                                embed_srcset(cache, client, &url, &img_srcset, options, depth)
+                                    .as_ref(),
                             ),
                         });
                     }
@@ -573,6 +593,7 @@ pub fn walk_and_embed_assets(
                                 &url,
                                 &input_image_full_url,
                                 options.silent,
+                                depth + 1,
                             ) {
                                 Ok((
                                     input_image_data,
@@ -629,7 +650,14 @@ pub fn walk_and_embed_assets(
                     if !options.no_images && !image_href.is_empty() {
                         let image_full_url = resolve_url(&url, image_href).unwrap_or_default();
                         let image_url_fragment = get_url_fragment(image_full_url.clone());
-                        match retrieve_asset(cache, client, &url, &image_full_url, options.silent) {
+                        match retrieve_asset(
+                            cache,
+                            client,
+                            &url,
+                            &image_full_url,
+                            options.silent,
+                            depth + 1,
+                        ) {
                             Ok((image_data, image_final_url, image_media_type)) => {
                                 let image_data_url = data_to_data_url(
                                     &image_media_type,
@@ -687,6 +715,7 @@ pub fn walk_and_embed_assets(
                                         &url,
                                         &srcset_full_url,
                                         options.silent,
+                                        depth + 1,
                                     ) {
                                         Ok((srcset_data, srcset_final_url, srcset_media_type)) => {
                                             let srcset_data_url = data_to_data_url(
@@ -763,8 +792,14 @@ pub fn walk_and_embed_assets(
                         node.children.borrow_mut().clear();
                     } else if !script_src.is_empty() {
                         let script_full_url = resolve_url(&url, script_src).unwrap_or_default();
-                        match retrieve_asset(cache, client, &url, &script_full_url, options.silent)
-                        {
+                        match retrieve_asset(
+                            cache,
+                            client,
+                            &url,
+                            &script_full_url,
+                            options.silent,
+                            depth + 1,
+                        ) {
                             Ok((script_data, script_final_url, _script_media_type)) => {
                                 // Only embed if we're able to validate integrity
                                 if script_integrity.is_empty()
@@ -802,8 +837,14 @@ pub fn walk_and_embed_assets(
                         for node in node.children.borrow_mut().iter_mut() {
                             if let NodeData::Text { ref contents } = node.data {
                                 let mut tendril = contents.borrow_mut();
-                                let replacement =
-                                    embed_css(cache, client, &url, tendril.as_ref(), options);
+                                let replacement = embed_css(
+                                    cache,
+                                    client,
+                                    &url,
+                                    tendril.as_ref(),
+                                    options,
+                                    depth,
+                                );
                                 tendril.clear();
                                 tendril.push_slice(&replacement);
                             }
@@ -850,6 +891,7 @@ pub fn walk_and_embed_assets(
                                 &url,
                                 &frame_full_url,
                                 options.silent,
+                                depth + 1,
                             ) {
                                 Ok((frame_data, frame_final_url, frame_media_type)) => {
                                     let frame_dom =
@@ -860,6 +902,7 @@ pub fn walk_and_embed_assets(
                                         &frame_final_url,
                                         &frame_dom.document,
                                         &options,
+                                        depth + 1,
                                     );
                                     let mut frame_data: Vec<u8> = Vec::new();
                                     serialize(
@@ -921,6 +964,7 @@ pub fn walk_and_embed_assets(
                                 &url,
                                 &video_poster_full_url,
                                 options.silent,
+                                depth + 1,
                             ) {
                                 Ok((
                                     video_poster_data,
@@ -975,8 +1019,14 @@ pub fn walk_and_embed_assets(
                     .iter_mut()
                     .filter(|a| a.name.local.as_ref().eq_ignore_ascii_case("style"))
                 {
-                    let replacement =
-                        embed_css(cache, client, &url, attribute.value.as_ref(), options);
+                    let replacement = embed_css(
+                        cache,
+                        client,
+                        &url,
+                        attribute.value.as_ref(),
+                        options,
+                        depth,
+                    );
                     // let replacement = str!();
                     attribute.value.clear();
                     attribute.value.push_slice(&replacement);
@@ -999,7 +1049,7 @@ pub fn walk_and_embed_assets(
 
             // Dig deeper
             for child in node.children.borrow().iter() {
-                walk_and_embed_assets(cache, client, &url, child, options);
+                walk_and_embed_assets(cache, client, &url, child, options, depth);
             }
         }
         _ => {
diff --git a/src/main.rs b/src/main.rs
index 2777d0a..bbb1034 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -108,7 +108,14 @@ fn main() {
 
     // Retrieve target document
     if is_file_url(target_url) || is_http_url(target_url) {
-        match retrieve_asset(&mut cache, &client, target_url, target_url, options.silent) {
+        match retrieve_asset(
+            &mut cache,
+            &client,
+            target_url,
+            target_url,
+            options.silent,
+            0,
+        ) {
             Ok((data, final_url, _media_type)) => {
                 base_url = final_url;
                 dom = html_to_dom(&String::from_utf8_lossy(&data));
@@ -131,7 +138,7 @@ fn main() {
     }
 
     // Embed remote assets
-    walk_and_embed_assets(&mut cache, &client, &base_url, &dom.document, &options);
+    walk_and_embed_assets(&mut cache, &client, &base_url, &dom.document, &options, 0);
 
     // Serialize DOM tree
     let mut result: String = stringify_document(&dom.document, &options);
diff --git a/src/tests/cli.rs b/src/tests/cli.rs
index 98e7ff4..14c84c4 100644
--- a/src/tests/cli.rs
+++ b/src/tests/cli.rs
@@ -287,8 +287,8 @@ mod passing {
             std::str::from_utf8(&out.stderr).unwrap(),
             format!(
                 "\
-                {file}{cwd}/src/tests/data/basic/local-file.html\n\
-                {file}{cwd}/src/tests/data/basic/local-style.css\n\
+                {file}{cwd}/src/tests/data/basic/local-file.html\n \
+                {file}{cwd}/src/tests/data/basic/local-style.css\n \
                 {file}{cwd}/src/tests/data/basic/local-script.js\n\
                 ",
                 file = file_url_protocol,
@@ -489,7 +489,7 @@ mod passing {
             std::str::from_utf8(&out.stderr).unwrap(),
             format!(
                 "\
-                {file}{html_path}\n\
+                {file}{html_path}\n \
                 {file}{svg_path}\n\
                 ",
                 file = file_url_prefix,
@@ -540,9 +540,9 @@ mod passing {
             std::str::from_utf8(&out.stderr).unwrap(),
             format!(
                 "\
-                {file}{html_path}\n\
-                {file}{css_path}\n\
-                {file}{css_path}\n\
+                {file}{html_path}\n \
+                {file}{css_path}\n \
+                {file}{css_path}\n \
                 {file}{css_path}\n\
                 ",
                 file = file_url_prefix,
diff --git a/src/tests/css/embed_css.rs b/src/tests/css/embed_css.rs
index 9525718..3b001c7 100644
--- a/src/tests/css/embed_css.rs
+++ b/src/tests/css/embed_css.rs
@@ -19,7 +19,7 @@ mod passing {
         let client = Client::new();
         let options = Options::default();
 
-        assert_eq!(css::embed_css(cache, &client, "", "", &options), "");
+        assert_eq!(css::embed_css(cache, &client, "", "", &options, 0), "");
     }
 
     #[test]
@@ -35,6 +35,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 "\t     \t   ",
                 &options,
+                0,
             ),
             ""
         );
@@ -63,6 +64,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 &STYLE,
                 &options,
+                0,
             ),
             format!(
                 "/* border: none;*/\
@@ -94,7 +96,7 @@ mod passing {
             height: calc(100vh - 10pt)";
 
         assert_eq!(
-            css::embed_css(cache, &client, "", &STYLE, &options),
+            css::embed_css(cache, &client, "", &STYLE, &options, 0),
             format!(
                 "/* border: none;*/\
                 background-image: url('{empty_image}'); \
@@ -124,7 +126,7 @@ mod passing {
             html > body {}";
 
         assert_eq!(
-            css::embed_css(cache, &client, "file:///", &CSS, &options),
+            css::embed_css(cache, &client, "file:///", &CSS, &options, 0),
             CSS
         );
     }
@@ -166,7 +168,7 @@ mod passing {
             }
             ";
 
-        assert_eq!(css::embed_css(cache, &client, "", &CSS, &options), CSS);
+        assert_eq!(css::embed_css(cache, &client, "", &CSS, &options, 0), CSS);
     }
 
     #[test]
@@ -191,6 +193,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 &CSS,
                 &options,
+                0,
             ),
             "\
             @charset 'UTF-8';\n\
@@ -226,6 +229,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 &CSS,
                 &options,
+                0,
             ),
             CSS
         );
@@ -253,6 +257,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 &CSS,
                 &options,
+                0,
             ),
             CSS
         );
@@ -282,6 +287,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 &CSS,
                 &options,
+                0,
             ),
             CSS
         );
@@ -336,6 +342,7 @@ mod passing {
                 "https://doesntmatter.local/",
                 &CSS,
                 &options,
+                0,
             ),
             CSS_OUT
         );
diff --git a/src/tests/html/embed_srcset.rs b/src/tests/html/embed_srcset.rs
index bf340b1..5489c86 100644
--- a/src/tests/html/embed_srcset.rs
+++ b/src/tests/html/embed_srcset.rs
@@ -21,7 +21,7 @@ mod passing {
         let mut options = Options::default();
         options.no_images = true;
         options.silent = true;
-        let embedded_css = html::embed_srcset(cache, &client, "", &srcset_value, &options);
+        let embedded_css = html::embed_srcset(cache, &client, "", &srcset_value, &options, 0);
 
         assert_eq!(
             format!("{} 1x, {} 2x", empty_image!(), empty_image!()),
diff --git a/src/tests/html/walk_and_embed_assets.rs b/src/tests/html/walk_and_embed_assets.rs
index c03560b..894bad2 100644
--- a/src/tests/html/walk_and_embed_assets.rs
+++ b/src/tests/html/walk_and_embed_assets.rs
@@ -27,7 +27,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -50,7 +50,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -73,7 +73,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -99,7 +99,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -132,7 +132,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -169,7 +169,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -193,7 +193,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -217,7 +217,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -244,7 +244,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -274,7 +274,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
@@ -310,7 +310,7 @@ mod passing {
 
         let client = Client::new();
 
-        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options);
+        html::walk_and_embed_assets(cache, &client, &url, &dom.document, &options, 0);
 
         let mut buf: Vec<u8> = Vec::new();
         serialize(&mut buf, &dom.document, SerializeOpts::default()).unwrap();
diff --git a/src/tests/utils/indent.rs b/src/tests/utils/indent.rs
new file mode 100644
index 0000000..112b712
--- /dev/null
+++ b/src/tests/utils/indent.rs
@@ -0,0 +1,31 @@
+//  ██████╗  █████╗ ███████╗███████╗██╗███╗   ██╗ ██████╗
+//  ██╔══██╗██╔══██╗██╔════╝██╔════╝██║████╗  ██║██╔════╝
+//  ██████╔╝███████║███████╗███████╗██║██╔██╗ ██║██║  ███╗
+//  ██╔═══╝ ██╔══██║╚════██║╚════██║██║██║╚██╗██║██║   ██║
+//  ██║     ██║  ██║███████║███████║██║██║ ╚████║╚██████╔╝
+//  ╚═╝     ╚═╝  ╚═╝╚══════╝╚══════╝╚═╝╚═╝  ╚═══╝ ╚═════╝
+
+#[cfg(test)]
+mod passing {
+    use crate::utils;
+
+    #[test]
+    fn zero() {
+        assert_eq!(utils::indent(0), "");
+    }
+
+    #[test]
+    fn one() {
+        assert_eq!(utils::indent(1), " ");
+    }
+
+    #[test]
+    fn two() {
+        assert_eq!(utils::indent(2), "  ");
+    }
+
+    #[test]
+    fn three() {
+        assert_eq!(utils::indent(3), "   ");
+    }
+}
diff --git a/src/tests/utils/mod.rs b/src/tests/utils/mod.rs
index 8d13447..3231b30 100644
--- a/src/tests/utils/mod.rs
+++ b/src/tests/utils/mod.rs
@@ -1,2 +1,3 @@
 mod detect_media_type;
+mod indent;
 mod retrieve_asset;
diff --git a/src/tests/utils/retrieve_asset.rs b/src/tests/utils/retrieve_asset.rs
index f78d85e..023f2e3 100644
--- a/src/tests/utils/retrieve_asset.rs
+++ b/src/tests/utils/retrieve_asset.rs
@@ -27,6 +27,7 @@ mod passing {
             "data:text/html;base64,c291cmNl",
             "data:text/html;base64,dGFyZ2V0",
             false,
+            0,
         )
         .unwrap();
         assert_eq!(
@@ -63,6 +64,7 @@ mod passing {
                 cwd = cwd.to_str().unwrap()
             ),
             false,
+            0,
         )
         .unwrap();
         assert_eq!(url::data_to_data_url("application/javascript", &data, &final_url), "data:application/javascript;base64,ZG9jdW1lbnQuYm9keS5zdHlsZS5iYWNrZ3JvdW5kQ29sb3IgPSAiZ3JlZW4iOwpkb2N1bWVudC5ib2R5LnN0eWxlLmNvbG9yID0gInJlZCI7Cg==");
@@ -103,6 +105,7 @@ mod failing {
             "data:text/html;base64,SoUrCe",
             "file:///etc/passwd",
             false,
+            0,
         ) {
             Ok((..)) => {
                 assert!(false);
@@ -125,6 +128,7 @@ mod failing {
             "https://kernel.org/",
             "file:///etc/passwd",
             false,
+            0,
         ) {
             Ok((..)) => {
                 assert!(false);
diff --git a/src/utils.rs b/src/utils.rs
index de0ca45..9016b94 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -6,6 +6,8 @@ use std::path::Path;
 
 use crate::url::{clean_url, data_url_to_data, file_url_to_fs_path, is_data_url, is_file_url};
 
+const INDENT: &str = " ";
+
 const MAGIC: [[&[u8]; 2]; 18] = [
     // Image
     [b"GIF87a", b"image/gif"],
@@ -56,12 +58,23 @@ pub fn is_plaintext_media_type(media_type: &str) -> bool {
     PLAINTEXT_MEDIA_TYPES.contains(&media_type.to_lowercase().as_str())
 }
 
+pub fn indent(level: u32) -> String {
+    let mut result = str!();
+    let mut l: u32 = level;
+    while l > 0 {
+        result += INDENT;
+        l -= 1;
+    }
+    result
+}
+
 pub fn retrieve_asset(
     cache: &mut HashMap<String, Vec<u8>>,
     client: &Client,
     parent_url: &str,
     url: &str,
     opt_silent: bool,
+    depth: u32,
 ) -> Result<(Vec<u8>, String, String), reqwest::Error> {
     if url.len() == 0 {
         // Provoke error
@@ -83,7 +96,7 @@ pub fn retrieve_asset(
         let path = Path::new(&fs_file_path);
         if path.exists() {
             if !opt_silent {
-                eprintln!("{}", &url);
+                eprintln!("{}{}", indent(depth).as_str(), &url);
             }
 
             Ok((fs::read(&fs_file_path).expect(""), url.to_string(), str!()))
@@ -97,7 +110,7 @@ pub fn retrieve_asset(
         if cache.contains_key(&cache_key) {
             // URL is in cache, we get and return it
             if !opt_silent {
-                eprintln!("{} (from cache)", &url);
+                eprintln!("{}{} (from cache)", indent(depth).as_str(), &url);
             }
 
             Ok((
@@ -112,9 +125,9 @@ pub fn retrieve_asset(
 
             if !opt_silent {
                 if url == res_url {
-                    eprintln!("{}", &url);
+                    eprintln!("{}{}", indent(depth).as_str(), &url);
                 } else {
-                    eprintln!("{} -> {}", &url, &res_url);
+                    eprintln!("{}{} -> {}", indent(depth).as_str(), &url, &res_url);
                 }
             }