diff --git a/quickpeep_indexer/src/bin/qp-indexer.rs b/quickpeep_indexer/src/bin/qp-indexer.rs
index 73035e6..80ca084 100644
--- a/quickpeep_indexer/src/bin/qp-indexer.rs
+++ b/quickpeep_indexer/src/bin/qp-indexer.rs
@@ -29,11 +29,6 @@ pub struct Opts {
     rakepacks: Vec<PathBuf>,
 }
 
-pub struct SeedLookupTable {
-    pub by_prefix: PatriciaMap<Seed>,
-    pub by_reduced_domain: HashMap<CompactString, Seed>,
-}
-
 #[tokio::main]
 pub async fn main() -> anyhow::Result<()> {
     env_logger::Builder::from_env(Env::default().default_filter_or("info,qp_indexer=debug")).init();
@@ -84,13 +79,18 @@ pub async fn main() -> anyhow::Result<()> {
             let article_body = DenseTree::generate_textual_format(&document.body_content);
             let nonarticle_body = DenseTree::generate_textual_format(&document.body_remainder);
 
+            let tags = seed_lookup
+                .look_up(&Url::parse(page_record.url.as_ref())?)?
+                .map(|seed: &Seed| seed.tags.iter().map(|cs| cs.to_string()).collect())
+                .unwrap_or_else(|| Vec::with_capacity(0));
+
             // TODO Store the actual structure of the document in the store?
             indexer_backend.add_document(BackendIndependentDocument {
                 title: document.head.title,
                 article_body,
                 nonarticle_body,
                 // TODO populate tags & antifeatures
-                tags: vec![],
+                tags,
                 url: page_record.url.to_string(),
             })?;
         }
@@ -100,6 +100,11 @@ pub async fn main() -> anyhow::Result<()> {
     Ok(())
 }
 
+pub struct SeedLookupTable {
+    pub by_prefix: PatriciaMap<Seed>,
+    pub by_reduced_domain: HashMap<CompactString, Seed>,
+}
+
 pub async fn build_seed_lookup_table(
     mut seed_rx: Receiver<Seed>,
 ) -> anyhow::Result<SeedLookupTable> {
@@ -125,3 +130,18 @@ pub async fn build_seed_lookup_table(
 
     Ok(seed_lookup)
 }
+
+impl SeedLookupTable {
+    pub fn look_up(&self, url: &Url) -> anyhow::Result<Option<&Seed>> {
+        if let Some((_prefix, seed)) = self.by_prefix.get_longest_common_prefix(&url.as_str()) {
+            return Ok(Some(seed));
+        }
+
+        let domain = get_reduced_domain(url)?;
+        if let Some(seed) = self.by_reduced_domain.get(domain.as_ref()) {
+            return Ok(Some(seed));
+        }
+
+        Ok(None)
+    }
+}
diff --git a/quickpeep_seed_parser/src/loader.rs b/quickpeep_seed_parser/src/loader.rs
index a5dcb9e..e4e4c84 100644
--- a/quickpeep_seed_parser/src/loader.rs
+++ b/quickpeep_seed_parser/src/loader.rs
@@ -1,6 +1,8 @@
 use crate::parse_seeds;
 use anyhow::{anyhow, bail};
 use log::warn;
+use smartstring::alias::CompactString;
+use std::collections::BTreeSet;
 use std::ffi::OsStr;
 use std::path::PathBuf;
 use tokio::sync::mpsc::Sender;
@@ -10,7 +12,7 @@ pub const WEED_EXTENSION: &'static str = ".weed";
 
 pub struct Seed {
     pub url: UrlOrUrlPattern,
-    // TODO(later) These make more sense at the indexer stage. tags: BTreeSet<CompactString>,
+    pub tags: BTreeSet<CompactString>,
 }
 
 /// Either a URL or a URL prefix.
@@ -38,17 +40,16 @@ pub async fn seed_loader(seed_files: Vec<PathBuf>, send: &Sender<Seed>) -> anyho
             Ok(seedblocks) => {
                 for seedblock in seedblocks {
                     for seed in seedblock.seeds {
-                        /*
                         let tags: BTreeSet<CompactString> = seedblock
                             .tags
                             .iter()
                             .chain(seed.extra_tags.iter())
                             .cloned()
                             .collect();
-                         */
+
                         send.send(Seed {
                             url: seed_url_parse_pattern(seed.url),
-                            // tags,
+                            tags,
                         })
                         .await
                         .map_err(|_| anyhow!("Seed receiver shut down prematurely"))?;