diff --git a/lib/mihari.rb b/lib/mihari.rb
index 27c56e3e..45080086 100644
--- a/lib/mihari.rb
+++ b/lib/mihari.rb
@@ -79,7 +79,7 @@ def emitters
     #
     def emitter_to_class
       @emitter_to_class ||= emitters.flat_map do |klass|
-        klass.class_keys.map { |key| [key, klass] }
+        klass.keys.map { |key| [key, klass] }
       end.to_h
     end
 
@@ -96,7 +96,7 @@ def analyzers
     #
     def analyzer_to_class
       @analyzer_to_class ||= analyzers.flat_map do |klass|
-        klass.class_keys.map { |key| [key, klass] }
+        klass.keys.map { |key| [key, klass] }
       end.to_h
     end
 
@@ -113,7 +113,7 @@ def enrichers
     #
     def enricher_to_class
       @enricher_to_class ||= enrichers.flat_map do |klass|
-        klass.class_keys.map { |key| [key, klass] }
+        klass.keys.map { |key| [key, klass] }
       end.to_h
     end
 
diff --git a/lib/mihari/actor.rb b/lib/mihari/actor.rb
index 085d66d2..4aa74dc9 100644
--- a/lib/mihari/actor.rb
+++ b/lib/mihari/actor.rb
@@ -55,7 +55,7 @@ def validate_configuration!
 
       joined = self.class.configuration_keys.join(", ")
       be = (self.class.configuration_keys.length > 1) ? "are" : "is"
-      message = "#{self.class.class_key} is not configured correctly. #{joined} #{be} missing."
+      message = "#{self.class.key} is not configured correctly. #{joined} #{be} missing."
       raise ConfigurationError, message
     end
 
@@ -75,22 +75,22 @@ class << self
       #
       # @return [String]
       #
-      def class_key
+      def key
         to_s.split("::").last.downcase
       end
 
       #
       # @return [Array<String>, nil]
       #
-      def class_key_aliases
+      def key_aliases
         nil
       end
 
       #
       # @return [Array<String>]
       #
-      def class_keys
-        ([class_key] + [class_key_aliases]).flatten.compact.map(&:downcase)
+      def keys
+        ([key] + [key_aliases]).flatten.compact.map(&:downcase)
       end
     end
   end
diff --git a/lib/mihari/analyzers/base.rb b/lib/mihari/analyzers/base.rb
index 026034b1..d8a2637f 100644
--- a/lib/mihari/analyzers/base.rb
+++ b/lib/mihari/analyzers/base.rb
@@ -65,7 +65,7 @@ def normalized_artifacts
           # It is set automatically in #initialize
           artifact = artifact.is_a?(Models::Artifact) ? artifact : Models::Artifact.new(data: artifact)
 
-          artifact.source = self.class.class_key
+          artifact.source = self.class.key
           artifact.query = query
 
           artifact
@@ -93,11 +93,11 @@ def result(...)
         return result if result.success?
 
         # Wrap failure with AnalyzerError to explicitly name a failed analyzer
-        error = AnalyzerError.new(result.failure.message, self.class.class_key, cause: result.failure)
+        error = AnalyzerError.new(result.failure.message, self.class.key, cause: result.failure)
         return Failure(error) unless ignore_error?
 
         # Return Success if ignore_error? is true with logging
-        Mihari.logger.warn("Analyzer:#{self.class.class_key} failed - #{result.failure}")
+        Mihari.logger.warn("Analyzer:#{self.class.key} failed - #{result.failure}")
         Success([])
       end
 
diff --git a/lib/mihari/analyzers/passivetotal.rb b/lib/mihari/analyzers/passivetotal.rb
index 53e093c7..bc848b6e 100644
--- a/lib/mihari/analyzers/passivetotal.rb
+++ b/lib/mihari/analyzers/passivetotal.rb
@@ -57,7 +57,7 @@ def configuration_keys
         #
         # @return [Array<String>, nil]
         #
-        def class_key_aliases
+        def key_aliases
           ["pt"]
         end
       end
diff --git a/lib/mihari/analyzers/securitytrails.rb b/lib/mihari/analyzers/securitytrails.rb
index 80c2af03..c32cd72e 100644
--- a/lib/mihari/analyzers/securitytrails.rb
+++ b/lib/mihari/analyzers/securitytrails.rb
@@ -51,7 +51,7 @@ def configuration_keys
         #
         # @return [Array<String>, nil]
         #
-        def class_key_aliases
+        def key_aliases
           ["st"]
         end
       end
diff --git a/lib/mihari/analyzers/virustotal.rb b/lib/mihari/analyzers/virustotal.rb
index ff7fec8e..1c95df76 100644
--- a/lib/mihari/analyzers/virustotal.rb
+++ b/lib/mihari/analyzers/virustotal.rb
@@ -46,7 +46,7 @@ def configuration_keys
         #
         # @return [Array<String>, nil]
         #
-        def class_key_aliases
+        def key_aliases
           ["vt"]
         end
       end
diff --git a/lib/mihari/analyzers/virustotal_intelligence.rb b/lib/mihari/analyzers/virustotal_intelligence.rb
index abb01a87..65fc6890 100644
--- a/lib/mihari/analyzers/virustotal_intelligence.rb
+++ b/lib/mihari/analyzers/virustotal_intelligence.rb
@@ -34,14 +34,14 @@ class << self
         #
         # @return [String]
         #
-        def class_key
+        def key
           "virustotal_intelligence"
         end
 
         #
         # @return [Array<String>, nil]
         #
-        def class_key_aliases
+        def key_aliases
           ["vt_intel"]
         end
       end
diff --git a/lib/mihari/constants.rb b/lib/mihari/constants.rb
index 6c97868b..8e1a92d8 100644
--- a/lib/mihari/constants.rb
+++ b/lib/mihari/constants.rb
@@ -5,7 +5,7 @@ module Mihari
   DEFAULT_DATA_TYPES = Types::DataTypes.values.freeze
 
   # @return [Array<Hash>]
-  DEFAULT_EMITTERS = Emitters::Database.class_keys.map { |name| { emitter: name.downcase } }.freeze
+  DEFAULT_EMITTERS = Emitters::Database.keys.map { |name| { emitter: name.downcase } }.freeze
 
   # @return [Array<Hash>]
   DEFAULT_ENRICHERS = Mihari.enricher_to_class.keys.map { |name| { enricher: name.downcase } }.freeze
diff --git a/lib/mihari/emitters/base.rb b/lib/mihari/emitters/base.rb
index bf1407f1..9d2998c7 100644
--- a/lib/mihari/emitters/base.rb
+++ b/lib/mihari/emitters/base.rb
@@ -38,7 +38,7 @@ def result(artifacts)
           ) { call(artifacts) }
         end.to_result
 
-        Mihari.logger.warn("Emitter:#{self.class.class_key} failed - #{result.failure}") if result.failure?
+        Mihari.logger.warn("Emitter:#{self.class.key} failed - #{result.failure}") if result.failure?
 
         result
       end
diff --git a/lib/mihari/enrichers/base.rb b/lib/mihari/enrichers/base.rb
index 17549ef1..a1478c5c 100644
--- a/lib/mihari/enrichers/base.rb
+++ b/lib/mihari/enrichers/base.rb
@@ -33,7 +33,7 @@ def result(value)
           ) { call value }
         end.to_result
 
-        Mihari.logger.warn("Enricher:#{self.class.class_key} failed: #{result.failure}") if result.failure?
+        Mihari.logger.warn("Enricher:#{self.class.key} failed: #{result.failure}") if result.failure?
 
         result
       end
diff --git a/lib/mihari/enrichers/google_public_dns.rb b/lib/mihari/enrichers/google_public_dns.rb
index 03283e9d..5ad4128d 100644
--- a/lib/mihari/enrichers/google_public_dns.rb
+++ b/lib/mihari/enrichers/google_public_dns.rb
@@ -21,7 +21,7 @@ class << self
         #
         # @return [String]
         #
-        def class_key
+        def key
           "google_public_dns"
         end
       end
diff --git a/lib/mihari/schemas/analyzer.rb b/lib/mihari/schemas/analyzer.rb
index 5b7c68dd..407cbfb6 100644
--- a/lib/mihari/schemas/analyzer.rb
+++ b/lib/mihari/schemas/analyzer.rb
@@ -10,12 +10,12 @@ module Analyzers
 
       # Analyzer with API key and pagination
       [
-        Mihari::Analyzers::BinaryEdge.class_keys,
-        Mihari::Analyzers::GreyNoise.class_keys,
-        Mihari::Analyzers::Onyphe.class_keys,
-        Mihari::Analyzers::Shodan.class_keys,
-        Mihari::Analyzers::Urlscan.class_keys,
-        Mihari::Analyzers::VirusTotalIntelligence.class_keys
+        Mihari::Analyzers::BinaryEdge.keys,
+        Mihari::Analyzers::GreyNoise.keys,
+        Mihari::Analyzers::Onyphe.keys,
+        Mihari::Analyzers::Shodan.keys,
+        Mihari::Analyzers::Urlscan.keys,
+        Mihari::Analyzers::VirusTotalIntelligence.keys
       ].each do |keys|
         key = keys.first
         const_set(key.upcase, Dry::Schema.Params do
@@ -28,10 +28,10 @@ module Analyzers
 
       # Analyzer with API key
       [
-        Mihari::Analyzers::OTX.class_keys,
-        Mihari::Analyzers::Pulsedive.class_keys,
-        Mihari::Analyzers::VirusTotal.class_keys,
-        Mihari::Analyzers::SecurityTrails.class_keys
+        Mihari::Analyzers::OTX.keys,
+        Mihari::Analyzers::Pulsedive.keys,
+        Mihari::Analyzers::VirusTotal.keys,
+        Mihari::Analyzers::SecurityTrails.keys
       ].each do |keys|
         key = keys.first
         const_set(key.upcase, Dry::Schema.Params do
@@ -43,13 +43,13 @@ module Analyzers
       end
 
       DNSTwister = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::DNSTwister.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::DNSTwister.keys))
         required(:query).value(:string)
         optional(:options).hash(AnalyzerOptions)
       end
 
       Censys = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Censys.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Censys.keys))
         required(:query).value(:string)
         optional(:id).value(:string)
         optional(:secret).value(:string)
@@ -57,7 +57,7 @@ module Analyzers
       end
 
       CIRCL = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::CIRCL.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::CIRCL.keys))
         required(:query).value(:string)
         optional(:username).value(:string)
         optional(:password).value(:string)
@@ -65,7 +65,7 @@ module Analyzers
       end
 
       Fofa = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Fofa.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Fofa.keys))
         required(:query).value(:string)
         optional(:api_key).value(:string)
         optional(:email).value(:string)
@@ -73,7 +73,7 @@ module Analyzers
       end
 
       PassiveTotal = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::PassiveTotal.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::PassiveTotal.keys))
         required(:query).value(:string)
         optional(:username).value(:string)
         optional(:api_key).value(:string)
@@ -81,14 +81,14 @@ module Analyzers
       end
 
       ZoomEye = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::ZoomEye.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::ZoomEye.keys))
         required(:query).value(:string)
         required(:type).value(Types::String.enum("host", "web"))
         optional(:options).hash(AnalyzerPaginationOptions)
       end
 
       Crtsh = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Crtsh.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Crtsh.keys))
         required(:query).value(:string)
         optional(:exclude_expired).value(:bool).default(true)
         optional(:match).value(Types::String.enum("=", "ILIKE", "LIKE", "single", "any", "FTS")).default(nil)
@@ -96,7 +96,7 @@ module Analyzers
       end
 
       HunterHow = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::HunterHow.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::HunterHow.keys))
         required(:query).value(:string)
         required(:start_time).value(:date)
         required(:end_time).value(:date)
@@ -105,7 +105,7 @@ module Analyzers
       end
 
       Feed = Dry::Schema.Params do
-        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Feed.class_keys))
+        required(:analyzer).value(Types::String.enum(*Mihari::Analyzers::Feed.keys))
         required(:query).value(:string)
         required(:selector).value(:string)
         optional(:method).value(Types::HTTPRequestMethods).default("GET")
diff --git a/lib/mihari/schemas/emitter.rb b/lib/mihari/schemas/emitter.rb
index 67cb44be..5636733c 100644
--- a/lib/mihari/schemas/emitter.rb
+++ b/lib/mihari/schemas/emitter.rb
@@ -9,33 +9,33 @@ module Emitters
       extend Concerns::Orrable
 
       Database = Dry::Schema.Params do
-        required(:emitter).value(Types::String.enum(*Mihari::Emitters::Database.class_keys))
+        required(:emitter).value(Types::String.enum(*Mihari::Emitters::Database.keys))
         optional(:options).hash(Options)
       end
 
       MISP = Dry::Schema.Params do
-        required(:emitter).value(Types::String.enum(*Mihari::Emitters::MISP.class_keys))
+        required(:emitter).value(Types::String.enum(*Mihari::Emitters::MISP.keys))
         optional(:url).value(:string)
         optional(:api_key).value(:string)
         optional(:options).hash(Options)
       end
 
       TheHive = Dry::Schema.Params do
-        required(:emitter).value(Types::String.enum(*Mihari::Emitters::TheHive.class_keys))
+        required(:emitter).value(Types::String.enum(*Mihari::Emitters::TheHive.keys))
         optional(:url).value(:string)
         optional(:api_key).value(:string)
         optional(:options).hash(Options)
       end
 
       Slack = Dry::Schema.Params do
-        required(:emitter).value(Types::String.enum(*Mihari::Emitters::Slack.class_keys))
+        required(:emitter).value(Types::String.enum(*Mihari::Emitters::Slack.keys))
         optional(:webhook_url).value(:string)
         optional(:channel).value(:string)
         optional(:options).hash(Options)
       end
 
       Webhook = Dry::Schema.Params do
-        required(:emitter).value(Types::String.enum(*Mihari::Emitters::Webhook.class_keys))
+        required(:emitter).value(Types::String.enum(*Mihari::Emitters::Webhook.keys))
         required(:url).value(:string)
         optional(:method).value(Types::HTTPRequestMethods).default("POST")
         optional(:headers).value(:hash).default({})
diff --git a/lib/mihari/schemas/enricher.rb b/lib/mihari/schemas/enricher.rb
index cd278300..9deebdca 100644
--- a/lib/mihari/schemas/enricher.rb
+++ b/lib/mihari/schemas/enricher.rb
@@ -9,22 +9,22 @@ module Enrichers
       extend Concerns::Orrable
 
       MMDB = Dry::Schema.Params do
-        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::MMDB.class_keys))
+        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::MMDB.keys))
         optional(:options).hash(Options)
       end
 
       Whois = Dry::Schema.Params do
-        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::Whois.class_keys))
+        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::Whois.keys))
         optional(:options).hash(Options)
       end
 
       Shodan = Dry::Schema.Params do
-        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::Shodan.class_keys))
+        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::Shodan.keys))
         optional(:options).hash(Options)
       end
 
       GooglePublicDNS = Dry::Schema.Params do
-        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::GooglePublicDNS.class_keys))
+        required(:enricher).value(Types::String.enum(*Mihari::Enrichers::GooglePublicDNS.keys))
         optional(:options).hash(Options)
       end
     end
diff --git a/lib/mihari/structs/config.rb b/lib/mihari/structs/config.rb
index bd99e672..6cc550a6 100644
--- a/lib/mihari/structs/config.rb
+++ b/lib/mihari/structs/config.rb
@@ -68,7 +68,7 @@ def from_class(klass)
           begin
             instance = get_dummy(klass)
             new(
-              name: klass.class_key,
+              name: klass.key,
               items: klass.configuration_items,
               configured: instance.configured?,
               type: type
diff --git a/spec/analyzers/analyzer_spec.rb b/spec/analyzers/analyzer_spec.rb
index 36d27f84..b72f4677 100644
--- a/spec/analyzers/analyzer_spec.rb
+++ b/spec/analyzers/analyzer_spec.rb
@@ -14,7 +14,7 @@ def artifacts
   end
 
   class << self
-    def class_keys
+    def keys
       # NOTE: returns an empty array to prevent adding this class in Mihari#analyzer_to_class
       []
     end
diff --git a/spec/schemas/rule_spec.rb b/spec/schemas/rule_spec.rb
index f0c67c48..f7820262 100644
--- a/spec/schemas/rule_spec.rb
+++ b/spec/schemas/rule_spec.rb
@@ -32,7 +32,7 @@
             title: title,
             queries: [{ analyzer: analyzer, query: "foo" }]
           )
-          expect(result.errors.empty?).to be true
+          expect(result.errors.empty?).to eq true
         end
       end
     end