diff --git a/spec/conformance/MDSROOT.crt b/spec/conformance/MDSROOT.crt
index 8afb2190..46d19c7f 100644
--- a/spec/conformance/MDSROOT.crt
+++ b/spec/conformance/MDSROOT.crt
@@ -1,21 +1,29 @@
+!!!!!DO NOT DYNAMICALLY FETCH THIS CERTIFICATE!!!!!
+!!!!!ADD THIS CERTIFICATE DIRECTLY TO YOUR CERTIFICATE STORAGE OR SOURCE CODE!!!!!
+
+FIDO Alliance Certification TEST Metadata Service Root Certificate
+Expected page status: Valid
+CN=FAKE Root FAKE
+OU=FAKE Metadata 3 BLOB Signing FAKE
+O=FIDO Alliance
+C=US
+Serial number=04 5A 1C 22 66 A1 4F 3F 1F  4D 29 55 12 23 15
+Valid from=01 February 2017
+Valid to=31 January 2045
+
+Base64
 -----BEGIN CERTIFICATE-----
-MIIDXzCCAkegAwIBAgILBAAAAAABIVhTCKIwDQYJKoZIhvcNAQELBQAwTDEgMB4G
-A1UECxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNp
-Z24xEzARBgNVBAMTCkdsb2JhbFNpZ24wHhcNMDkwMzE4MTAwMDAwWhcNMjkwMzE4
-MTAwMDAwWjBMMSAwHgYDVQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEG
-A1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMKR2xvYmFsU2lnbjCCASIwDQYJKoZI
-hvcNAQEBBQADggEPADCCAQoCggEBAMwldpB5BngiFvXAg7aEyiie/QV2EcWtiHL8
-RgJDx7KKnQRfJMsuS+FggkbhUqsMgUdwbN1k0ev1LKMPgj0MK66X17YUhhB5uzsT
-gHeMCOFJ0mpiLx9e+pZo34knlTifBtc+ycsmWQ1z3rDI6SYOgxXG71uL0gRgykmm
-KPZpO/bLyCiR5Z2KYVc3rHQU3HTgOu5yLy6c+9C7v/U9AOEGM+iCK65TpjoWc4zd
-QQ4gOsC0p6Hpsk+QLjJg6VfLuQSSaGjlOCZgdbKfd/+RFO+uIEn8rUAVSNECMWEZ
-XriX7613t2Saer9fwRPvm2L7DWzgVGkWqQPabumDk3F2xmmFghcCAwEAAaNCMEAw
-DgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFI/wS3+o
-LkUkrk1Q+mOai97i3Ru8MA0GCSqGSIb3DQEBCwUAA4IBAQBLQNvAUKr+yAzv95ZU
-RUm7lgAJQayzE4aGKAczymvmdLm6AC2upArT9fHxD4q/c2dKg8dEe3jgr25sbwMp
-jjM5RcOO5LlXbKr8EpbsU8Yt5CRsuZRj+9xTaGdWPoO4zzUhw8lo/s7awlOqzJCK
-6fBdRoyV3XpYKBovHd7NADdBj+1EbddTKJd+82cEHhXXipa0095MJ6RMG3NzdvQX
-mcIfeg7jLQitChws/zyrVQ4PkX4268NXSb7hLi18YIvDQVETI53O9zJrlAGomecs
-Mx86OyXShkDOOyyGeMlhLxS67ttVb9+E7gUJTb0o2HLO02JQZR7rkpeDMdmztcpH
-WD9f
------END CERTIFICATE-----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=
+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/spec/conformance/conformance_cache_store.rb b/spec/conformance/conformance_cache_store.rb
index 68c2ee8b..cbc89208 100644
--- a/spec/conformance/conformance_cache_store.rb
+++ b/spec/conformance/conformance_cache_store.rb
@@ -6,7 +6,6 @@
 
 class ConformanceCacheStore < FidoMetadata::TestCacheStore
   FILENAME = "metadata.zip"
-  METADATA_ENDPOINT = URI("https://mds.fidoalliance.org/")
 
   def setup_authenticators
     puts("#{FILENAME} not found, this will affect Metadata Service Test results.") unless File.exist?(FILENAME)
@@ -19,11 +18,27 @@ def setup_authenticators
     end
   end
 
-  def setup_metadata_store
+  def setup_metadata_store(endpoint)
     puts("Setting up metadata store TOC")
 
+    response = Net::HTTP.post(
+      URI("https://mds3.fido.tools/getEndpoints"),
+      { endpoint: endpoint }.to_json,
+      FidoMetadata::Client::DEFAULT_HEADERS
+    )
+
+    response.value
+    possible_endpoints = JSON.parse(response.body)["result"]
+
     client = FidoMetadata::Client.new
-    json = client.download_toc(METADATA_ENDPOINT, trusted_certs: conformance_certificates)
+
+    json =
+      possible_endpoints.each_with_index do |uri, index|
+        puts("Trying endpoint #{index}: #{uri}")
+        break client.download_toc(URI(uri), algorithms: ["ES256"], trusted_certs: conformance_certificates)
+      rescue FidoMetadata::Client::DataIntegrityError, JWT::VerificationError, Net::HTTPFatalError
+        nil
+      end
 
     if json.is_a?(Hash) && json.keys == ["legalHeader", "no", "nextUpdate", "entries"]
       puts("TOC setup done!")
diff --git a/spec/conformance/server.rb b/spec/conformance/server.rb
index 6911223f..e4abecea 100644
--- a/spec/conformance/server.rb
+++ b/spec/conformance/server.rb
@@ -44,7 +44,7 @@ def self.registered_for(username)
   MDSFinder.new.tap do |mds|
     mds.cache_backend = ConformanceCacheStore.new
     mds.cache_backend.setup_authenticators
-    mds.cache_backend.setup_metadata_store
+    mds.cache_backend.setup_metadata_store("http://#{host}:#{settings.port}")
   end
 
 relying_party = WebAuthn::RelyingParty.new(