diff --git a/src/data/corebundle/mod.rs b/src/data/corebundle/mod.rs
index a95aa05..8957087 100644
--- a/src/data/corebundle/mod.rs
+++ b/src/data/corebundle/mod.rs
@@ -83,9 +83,13 @@ pub fn create_globalindexes_from_wd() -> globals::LocalizedGlobalsIndexes {
 pub async fn create_globalindexes_from_dd_latest_en_us() -> globals::LocalizedGlobalsIndexes {
     let client = reqwest::Client::new();
 
+    log::debug!("Fetching latest CoreBundle from Data Dragon...");
+
     let core = CoreBundle::fetch(&client, "https://dd.b.pvp.net/latest", "en_us").await
         .expect("to be able to fetch `core-en_us` bundle");
 
+    log::debug!("Fetched latest CoreBundle: it defines {} regions, {} keywords, {} rarities, {} sets, {} spell speeds, and {} vocab terms!", &core.globals.regions.len(), &core.globals.keywords.len(), &core.globals.rarities.len(), &core.globals.sets.len(), &core.globals.spell_speeds.len(), &core.globals.vocab_terms.len());
+
     globals::LocalizedGlobalsIndexes::from(core.globals)
 }
 
diff --git a/src/data/setbundle/mod.rs b/src/data/setbundle/mod.rs
index 6a0abdb..ab22081 100644
--- a/src/data/setbundle/mod.rs
+++ b/src/data/setbundle/mod.rs
@@ -168,8 +168,13 @@ pub async fn create_cardindex_from_dd_latest_en_us() -> card::CardIndex {
     let mut index = card::CardIndex::new();
 
     for set_code in DD_KNOWN_SET_CODES {
+        log::debug!("Fetching SetBundle with code {} from Data Dragon...", &set_code);
+
         let set = SetBundle::fetch(&client, "https://dd.b.pvp.net/latest", "en_us", set_code).await
             .expect("to be able to fetch set bundle");
+
+        log::debug!("Fetched SetBundle with code {}: it defines {} cards!", &set_code, set.cards.len());
+
         for card in set.cards {
             index.insert(card.code.clone(), card);
         }