diff --git a/Cargo.lock b/Cargo.lock
index 23d1ca2..171a4c4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -97,7 +97,7 @@ checksum = "5ad32ce52e4161730f7098c077cd2ed6229b5804ccf99e5366be1ab72a98b4e1"
 
 [[package]]
 name = "archive-pdf-urls"
-version = "0.3.1"
+version = "0.4.0"
 dependencies = [
  "clap",
  "env_logger",
@@ -1773,7 +1773,7 @@ dependencies = [
 
 [[package]]
 name = "waybackmachine-client"
-version = "0.3.1"
+version = "0.4.0"
 dependencies = [
  "chrono",
  "mockito",
diff --git a/Cargo.toml b/Cargo.toml
index c1487f6..37cfb71 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "archive-pdf-urls"
-version = "0.3.1"
+version = "0.4.0"
 authors = ["Javier Arias <javi@openbookpublishers.com>"]
 edition = "2021"
 license = "Apache-2.0"
@@ -18,4 +18,4 @@ log = "0.4.21"
 lopdf = "0.32.0"
 regex = "1.10.4"
 tokio = { version = "1.36.0", features = ["full"] }
-waybackmachine-client = { version = "=0.3.1", path = "waybackmachine-client"}
+waybackmachine-client = { version = "=0.4.0", path = "waybackmachine-client"}
diff --git a/waybackmachine-client/Cargo.toml b/waybackmachine-client/Cargo.toml
index 3f5f153..6072d49 100644
--- a/waybackmachine-client/Cargo.toml
+++ b/waybackmachine-client/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "waybackmachine-client"
-version = "0.3.1"
+version = "0.4.0"
 authors = ["Javier Arias <javi@openbookpublishers.com>"]
 edition = "2021"
 license = "Apache-2.0"
diff --git a/waybackmachine-client/src/archivableurl.rs b/waybackmachine-client/src/archivableurl.rs
index ae33cbc..33ec1a9 100644
--- a/waybackmachine-client/src/archivableurl.rs
+++ b/waybackmachine-client/src/archivableurl.rs
@@ -7,6 +7,9 @@ pub struct ArchivableUrl {
     pub url: Url,
 }
 
+/// List of domains that block wayback requests
+const EXCLUDED_DOMAINS: &[&str] = &["archive.org", "jstor.org", "diw.de"];
+
 impl ArchivableUrl {
     /// Parses and validates the URL for archiving
     pub fn parse(url: &str) -> Result<Self, Error> {
@@ -24,14 +27,16 @@ impl ArchivableUrl {
 
         // Check if the host is excluded
         match host {
-            Host::Domain(domain) if domain.contains("localhost") => {
-                return Err(Error::InvalidUrl(self.url.to_string()));
-            }
-            Host::Domain(domain) if domain.contains("archive.org") => {
-                return Err(Error::ExcludedUrl(self.url.to_string()));
-            }
-            Host::Domain(domain) if domain.contains("jstor.org") => {
-                return Err(Error::ExcludedUrl(self.url.to_string()));
+            Host::Domain(domain) => {
+                if domain.contains("localhost") {
+                    return Err(Error::InvalidUrl(self.url.to_string()));
+                }
+
+                for &pattern in EXCLUDED_DOMAINS {
+                    if domain.contains(pattern) {
+                        return Err(Error::ExcludedUrl(self.url.to_string()));
+                    }
+                }
             }
             Host::Ipv4(ipv4)
                 if ipv4.is_loopback()
@@ -153,4 +158,14 @@ mod tests {
         assert!(result.is_err());
         assert_eq!(result.err(), Some(Error::ExcludedUrl(url.to_string())));
     }
+
+    #[test]
+    fn excluded_domains() {
+        for &domain in EXCLUDED_DOMAINS {
+            let url = format!("https://{}/some-path", domain);
+            let result = ArchivableUrl::parse(&url);
+            assert!(result.is_err());
+            assert_eq!(result.err(), Some(Error::ExcludedUrl(url)));
+        }
+    }
 }