diff --git a/lychee-bin/src/formatters/response/color.rs b/lychee-bin/src/formatters/response/color.rs
index 1c4bc1516e..ff5df2c349 100644
--- a/lychee-bin/src/formatters/response/color.rs
+++ b/lychee-bin/src/formatters/response/color.rs
@@ -50,3 +50,51 @@ fn format_status(status: &Status) -> String {
         width = status_code_or_text.len()
     )
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use http::StatusCode;
+    use lychee_lib::{ErrorKind, Status, Uri};
+
+    // Helper function to create a ResponseBody with a given status and URI
+    fn mock_response_body(status: Status, uri: &str) -> ResponseBody {
+        ResponseBody {
+            uri: Uri::try_from(uri).unwrap(),
+            status,
+        }
+    }
+
+    #[test]
+    fn test_format_response_with_ok_status() {
+        let formatter = ColorFormatter;
+        let body = mock_response_body(Status::Ok(StatusCode::OK), "https://example.com");
+        assert_eq!(
+            formatter.format_response(&body),
+            "\u{1b}[38;5;2m\u{1b}[1m     [200]\u{1b}[0m https://example.com/"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_error_status() {
+        let formatter = ColorFormatter;
+        let body = mock_response_body(
+            Status::Error(ErrorKind::InvalidUrlHost),
+            "https://example.com/404",
+        );
+        assert_eq!(
+            formatter.format_response(&body),
+            "\u{1b}[38;5;197m   [ERROR]\u{1b}[0m https://example.com/404"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_long_uri() {
+        let formatter = ColorFormatter;
+        let long_uri =
+            "https://example.com/some/very/long/path/to/a/resource/that/exceeds/normal/lengths";
+        let body = mock_response_body(Status::Ok(StatusCode::OK), long_uri);
+        let formatted_response = formatter.format_response(&body);
+        assert!(formatted_response.contains(long_uri));
+    }
+}
diff --git a/lychee-bin/src/formatters/response/emoji.rs b/lychee-bin/src/formatters/response/emoji.rs
index 253dc9673d..ea70fc0ff9 100644
--- a/lychee-bin/src/formatters/response/emoji.rs
+++ b/lychee-bin/src/formatters/response/emoji.rs
@@ -22,3 +22,74 @@ impl ResponseBodyFormatter for EmojiFormatter {
         format!("{} {}", emoji, body.uri)
     }
 }
+
+#[cfg(test)]
+mod emoji_tests {
+    use super::*;
+    use http::StatusCode;
+    use lychee_lib::{ErrorKind, Status, Uri};
+
+    // Helper function to create a ResponseBody with a given status and URI
+    fn mock_response_body(status: Status, uri: &str) -> ResponseBody {
+        ResponseBody {
+            uri: Uri::try_from(uri).unwrap(),
+            status,
+        }
+    }
+
+    #[test]
+    fn test_format_response_with_ok_status() {
+        let formatter = EmojiFormatter;
+        let body = mock_response_body(Status::Ok(StatusCode::OK), "https://example.com");
+        assert_eq!(formatter.format_response(&body), "✅ https://example.com/");
+    }
+
+    #[test]
+    fn test_format_response_with_error_status() {
+        let formatter = EmojiFormatter;
+        let body = mock_response_body(
+            Status::Error(ErrorKind::InvalidUrlHost),
+            "https://example.com/404",
+        );
+        assert_eq!(
+            formatter.format_response(&body),
+            "❌ https://example.com/404"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_excluded_status() {
+        let formatter = EmojiFormatter;
+        let body = mock_response_body(Status::Excluded, "https://example.com/not-checked");
+        assert_eq!(
+            formatter.format_response(&body),
+            "🚫 https://example.com/not-checked"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_redirect_status() {
+        let formatter = EmojiFormatter;
+        let body = mock_response_body(
+            Status::Redirected(StatusCode::MOVED_PERMANENTLY),
+            "https://example.com/redirect",
+        );
+        assert_eq!(
+            formatter.format_response(&body),
+            "↪️ https://example.com/redirect"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_unknown_status_code() {
+        let formatter = EmojiFormatter;
+        let body = mock_response_body(
+            Status::UnknownStatusCode(StatusCode::from_u16(999).unwrap()),
+            "https://example.com/unknown",
+        );
+        assert_eq!(
+            formatter.format_response(&body),
+            "⚠️ https://example.com/unknown"
+        );
+    }
+}
diff --git a/lychee-bin/src/formatters/response/mod.rs b/lychee-bin/src/formatters/response/mod.rs
index 5d0e668b5f..7332494d5a 100644
--- a/lychee-bin/src/formatters/response/mod.rs
+++ b/lychee-bin/src/formatters/response/mod.rs
@@ -25,3 +25,5 @@ pub(crate) const MAX_RESPONSE_OUTPUT_WIDTH: usize = 10;
 pub(crate) trait ResponseBodyFormatter: Send + Sync {
     fn format_response(&self, body: &ResponseBody) -> String;
 }
+
+
diff --git a/lychee-bin/src/formatters/response/plain.rs b/lychee-bin/src/formatters/response/plain.rs
index d5e68cb644..bd2d0e4c5e 100644
--- a/lychee-bin/src/formatters/response/plain.rs
+++ b/lychee-bin/src/formatters/response/plain.rs
@@ -17,3 +17,81 @@ impl ResponseBodyFormatter for PlainFormatter {
         body.to_string()
     }
 }
+
+#[cfg(test)]
+mod plain_tests {
+    use super::*;
+    use http::StatusCode;
+    use lychee_lib::{ErrorKind, Status, Uri};
+
+    // Helper function to create a ResponseBody with a given status and URI
+    fn mock_response_body(status: Status, uri: &str) -> ResponseBody {
+        ResponseBody {
+            uri: Uri::try_from(uri).unwrap(),
+            status,
+        }
+    }
+
+    #[test]
+    fn test_format_response_with_ok_status() {
+        let formatter = PlainFormatter;
+        let body = mock_response_body(Status::Ok(StatusCode::OK), "https://example.com");
+        assert_eq!(
+            formatter.format_response(&body),
+            "[200] https://example.com/"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_error_status() {
+        let formatter = PlainFormatter;
+        let body = mock_response_body(
+            Status::Error(ErrorKind::InvalidUrlHost),
+            "https://example.com/404",
+        );
+        assert_eq!(
+            formatter.format_response(&body),
+            "[ERROR] https://example.com/404 | Failed: URL is missing a host"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_excluded_status() {
+        let formatter = PlainFormatter;
+        let body = mock_response_body(Status::Excluded, "https://example.com/not-checked");
+        assert_eq!(formatter.format_response(&body), body.to_string());
+        assert_eq!(
+            formatter.format_response(&body),
+            "[EXCLUDED] https://example.com/not-checked | Excluded"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_redirect_status() {
+        let formatter = PlainFormatter;
+        let body = mock_response_body(
+            Status::Redirected(StatusCode::MOVED_PERMANENTLY),
+            "https://example.com/redirect",
+        );
+        assert_eq!(formatter.format_response(&body), body.to_string());
+        assert_eq!(
+            formatter.format_response(&body),
+            "[301] https://example.com/redirect | Redirect (301 Moved Permanently): Moved Permanently"
+        );
+    }
+
+    #[test]
+    fn test_format_response_with_unknown_status_code() {
+        let formatter = PlainFormatter;
+        let body = mock_response_body(
+            Status::UnknownStatusCode(StatusCode::from_u16(999).unwrap()),
+            "https://example.com/unknown",
+        );
+        assert_eq!(formatter.format_response(&body), body.to_string());
+        // Check the actual string representation of the status code
+        assert_eq!(
+            formatter.format_response(&body),
+            "[999] https://example.com/unknown | Unknown status (999 <unknown status code>)"
+        );
+    }
+}