diff --git a/lib/qa/authorities/linked_data/find_term.rb b/lib/qa/authorities/linked_data/find_term.rb
index 5f844e03..c053febb 100644
--- a/lib/qa/authorities/linked_data/find_term.rb
+++ b/lib/qa/authorities/linked_data/find_term.rb
@@ -15,8 +15,8 @@ def initialize(term_config)
         @term_config = term_config
       end
 
-      attr_reader :term_config, :full_graph, :filtered_graph, :language, :id, :uri, :access_time_s, :normalize_time_s
-      private :full_graph, :filtered_graph, :language, :id, :uri, :access_time_s, :normalize_time_s
+      attr_reader :term_config, :full_graph, :filtered_graph, :language, :id, :uri, :access_time_s, :normalize_time_s, :fetched_size, :normalized_size
+      private :full_graph, :filtered_graph, :language, :id, :uri, :access_time_s, :normalize_time_s, :fetched_size, :normalized_size
 
       delegate :term_subauthority?, :prefixes, :authority_name, to: :term_config
 
@@ -60,6 +60,7 @@ def load_graph(url:)
 
           access_end_dt = Time.now.utc
           @access_time_s = access_end_dt - access_start_dt
+          @fetched_size = full_graph.triples.to_s.size if performance_data?
           Rails.logger.info("Time to receive data from authority: #{access_time_s}s")
         end
 
@@ -70,8 +71,9 @@ def normalize_results
           json = perform_normalization
 
           @normalize_time_s = normalize_end_dt - normalize_start_dt
+          @normalized_size = json.to_s.size if performance_data?
           Rails.logger.info("Time to convert data to json: #{normalize_time_s}s")
-          json = append_performance_data(json) if performance_data? && !jsonld?
+          json = append_performance_data(json) if performance_data?
           json
         end
 
@@ -178,7 +180,7 @@ def jsonld?
         end
 
         def performance_data?
-          @performance_data == true
+          @performance_data == true && !jsonld?
         end
 
         def preds_for_term
@@ -254,6 +256,10 @@ def append_performance_data(results)
           performance = { predicate_count: pred_count,
                           fetch_time_s: access_time_s,
                           normalization_time_s: normalize_time_s,
+                          fetched_bytes: fetched_size,
+                          normalized_bytes: normalized_size,
+                          fetch_bytes_per_s: fetched_size / access_time_s,
+                          normalization_bytes_per_s: normalized_size / normalize_time_s,
                           total_time_s: (access_time_s + normalize_time_s) }
           { performance: performance, results: results }
         end
diff --git a/lib/qa/authorities/linked_data/search_query.rb b/lib/qa/authorities/linked_data/search_query.rb
index 096792d9..7f501e0d 100644
--- a/lib/qa/authorities/linked_data/search_query.rb
+++ b/lib/qa/authorities/linked_data/search_query.rb
@@ -15,8 +15,8 @@ def initialize(search_config)
         @search_config = search_config
       end
 
-      attr_reader :search_config, :full_graph, :filtered_graph, :language, :access_time_s, :normalize_time_s
-      private :full_graph, :filtered_graph, :language, :access_time_s, :normalize_time_s
+      attr_reader :search_config, :full_graph, :filtered_graph, :language, :access_time_s, :normalize_time_s, :fetched_size, :normalized_size
+      private :full_graph, :filtered_graph, :language, :access_time_s, :normalize_time_s, :fetched_size, :normalized_size
 
       delegate :subauthority?, :supports_sort?, :prefixes, :authority_name, to: :search_config
 
@@ -52,6 +52,7 @@ def load_graph(url:)
 
           access_end_dt = Time.now.utc
           @access_time_s = access_end_dt - access_start_dt
+          @fetched_size = full_graph.triples.to_s.size if performance_data?
           Rails.logger.info("Time to receive data from authority: #{access_time_s}s")
         end
 
@@ -64,6 +65,7 @@ def normalize_results
 
           normalize_end_dt = Time.now.utc
           @normalize_time_s = normalize_end_dt - normalize_start_dt
+          @normalized_size = json.to_s.size if performance_data?
           Rails.logger.info("Time to convert data to json: #{normalize_time_s}s")
           json = append_performance_data(json) if performance_data?
           json
@@ -171,6 +173,10 @@ def append_performance_data(results)
           performance = { result_count: results.size,
                           fetch_time_s: access_time_s,
                           normalization_time_s: normalize_time_s,
+                          fetched_bytes: fetched_size,
+                          normalized_bytes: normalized_size,
+                          fetch_bytes_per_s: fetched_size / access_time_s,
+                          normalization_bytes_per_s: normalized_size / normalize_time_s,
                           total_time_s: (access_time_s + normalize_time_s) }
           { performance: performance, results: results }
         end
diff --git a/spec/controllers/linked_data_terms_controller_spec.rb b/spec/controllers/linked_data_terms_controller_spec.rb
index 8d76869a..b94eef1a 100644
--- a/spec/controllers/linked_data_terms_controller_spec.rb
+++ b/spec/controllers/linked_data_terms_controller_spec.rb
@@ -307,7 +307,9 @@
         results = JSON.parse(response.body)
         expect(results).to be_kind_of Hash
         expect(results.keys).to match_array ['performance', 'results']
-        expect(results['performance'].keys).to match_array ['result_count', 'fetch_time_s', 'normalization_time_s', 'total_time_s']
+        expect(results['performance'].keys).to match_array ['result_count', 'fetch_time_s', 'normalization_time_s',
+                                                            'fetched_bytes', 'normalized_bytes', 'fetch_bytes_per_s',
+                                                            'normalization_bytes_per_s', 'total_time_s']
         expect(results['performance']['total_time_s']).to eq results['performance']['fetch_time_s'] + results['performance']['normalization_time_s']
         expect(results['performance']['result_count']).to eq 3
         expect(results['results'].count).to eq 3
@@ -475,7 +477,9 @@
         results = JSON.parse(response.body)
         expect(results).to be_kind_of Hash
         expect(results.keys).to match_array ['performance', 'results']
-        expect(results['performance'].keys).to match_array ['predicate_count', 'fetch_time_s', 'normalization_time_s', 'total_time_s']
+        expect(results['performance'].keys).to match_array ['predicate_count', 'fetch_time_s', 'normalization_time_s',
+                                                            'fetched_bytes', 'normalized_bytes', 'fetch_bytes_per_s',
+                                                            'normalization_bytes_per_s', 'total_time_s']
         expect(results['performance']['total_time_s']).to eq results['performance']['fetch_time_s'] + results['performance']['normalization_time_s']
         expect(results['performance']['predicate_count']).to eq 15
         expect(results['results']['predicates'].count).to eq 15
@@ -631,7 +635,9 @@
         results = JSON.parse(response.body)
         expect(results).to be_kind_of Hash
         expect(results.keys).to match_array ['performance', 'results']
-        expect(results['performance'].keys).to match_array ['predicate_count', 'fetch_time_s', 'normalization_time_s', 'total_time_s']
+        expect(results['performance'].keys).to match_array ['predicate_count', 'fetch_time_s', 'normalization_time_s',
+                                                            'fetched_bytes', 'normalized_bytes', 'fetch_bytes_per_s',
+                                                            'normalization_bytes_per_s', 'total_time_s']
         expect(results['performance']['total_time_s']).to eq results['performance']['fetch_time_s'] + results['performance']['normalization_time_s']
         expect(results['performance']['predicate_count']).to eq 7
         expect(results['results']['predicates'].count).to eq 7
diff --git a/spec/lib/authorities/linked_data/find_term_spec.rb b/spec/lib/authorities/linked_data/find_term_spec.rb
index f96ae0bb..fc31c255 100644
--- a/spec/lib/authorities/linked_data/find_term_spec.rb
+++ b/spec/lib/authorities/linked_data/find_term_spec.rb
@@ -28,7 +28,9 @@
         end
         it 'includes performance in return hash' do
           expect(results.keys).to match_array [:performance, :results]
-          expect(results[:performance].keys).to match_array [:predicate_count, :fetch_time_s, :normalization_time_s, :total_time_s]
+          expect(results[:performance].keys).to match_array [:predicate_count, :fetch_time_s, :normalization_time_s,
+                                                             :fetched_bytes, :normalized_bytes, :fetch_bytes_per_s,
+                                                             :normalization_bytes_per_s, :total_time_s]
           expect(results[:performance][:predicate_count]).to eq 7
           expect(results[:performance][:total_time_s]).to eq results[:performance][:fetch_time_s] + results[:performance][:normalization_time_s]
         end
@@ -218,9 +220,13 @@
         end
 
         context 'when alternate authority name is used to access loc' do
-          let(:results) { lod_loc.find('sh 85118553', subauth: 'subjects') }
+          before do
+            stub_request(:get, 'http://id.loc.gov/authorities/subjects/sh85118553')
+              .to_return(status: 200, body: webmock_fixture('lod_loc_term_found.rdf.xml'), headers: { 'Content-Type' => 'application/rdf+xml' })
+            allow(lod_loc.term_config).to receive(:authority_name).and_return('ALT_LOC_AUTHORITY')
+          end
 
-          before { allow(lod_loc.term_config).to receive(:authority_name).and_return('ALT_LOC_AUTHORITY') }
+          let(:results) { lod_loc.find('sh 85118553', subauth: 'subjects') }
 
           it 'does special processing to remove blank from id' do
             expect(results[:uri]).to eq 'http://id.loc.gov/authorities/subjects/sh85118553'
diff --git a/spec/lib/authorities/linked_data/search_query_spec.rb b/spec/lib/authorities/linked_data/search_query_spec.rb
index 3ba63662..cec2e710 100644
--- a/spec/lib/authorities/linked_data/search_query_spec.rb
+++ b/spec/lib/authorities/linked_data/search_query_spec.rb
@@ -16,7 +16,9 @@
         it 'includes performance in return hash' do
           expect(results).to be_kind_of Hash
           expect(results.keys).to match_array [:performance, :results]
-          expect(results[:performance].keys).to match_array [:result_count, :fetch_time_s, :normalization_time_s, :total_time_s]
+          expect(results[:performance].keys).to match_array [:result_count, :fetch_time_s, :normalization_time_s,
+                                                             :fetched_bytes, :normalized_bytes, :fetch_bytes_per_s,
+                                                             :normalization_bytes_per_s, :total_time_s]
           expect(results[:performance][:total_time_s]).to eq results[:performance][:fetch_time_s] + results[:performance][:normalization_time_s]
           expect(results[:performance][:result_count]).to eq 3
           expect(results[:results].count).to eq 3