diff --git a/lib/cloudflare/certificates.rb b/lib/cloudflare/certificates.rb
new file mode 100644
index 0000000..7096ebd
--- /dev/null
+++ b/lib/cloudflare/certificates.rb
@@ -0,0 +1,25 @@
+require_relative 'representation'
+require_relative 'paginate'
+
+module Cloudflare
+
+	class Certificate < Representation
+    def certificate
+      value[:certificate]
+    end
+	end
+
+	class Certificates < Representation
+		include Paginate
+
+		def representation
+			Certificate
+		end
+
+		def create(csr_pem, hostnames, request_type = 'origin-rsa', requested_validity = 5475)
+      attrs =
+        {csr: csr_pem, request_type: request_type, hostnames: hostnames, requested_validity: requested_validity}
+			represent_message(self.post(attrs))
+		end
+	end
+end
diff --git a/lib/cloudflare/connection.rb b/lib/cloudflare/connection.rb
index 86e9ad2..6f1cf2a 100644
--- a/lib/cloudflare/connection.rb
+++ b/lib/cloudflare/connection.rb
@@ -22,9 +22,11 @@
 
 require_relative 'representation'
 
+require_relative 'i_ps'
 require_relative 'zones'
 require_relative 'accounts'
 require_relative 'user'
+require_relative 'certificates'
 
 module Cloudflare
 	class Connection < Representation
@@ -44,6 +46,10 @@ def authenticated(token: nil, key: nil, email: nil)
 			
 			self.with(headers: headers)
 		end
+
+    def cidrs(ipv: nil)
+      with(IPs, path: 'ips').cidrs(ipv: ipv)
+    end
 		
 		def zones
 			self.with(Zones, path: 'zones')
@@ -56,5 +62,9 @@ def accounts
 		def user
 			self.with(User, path: 'user')
 		end
+
+    def certificates
+      with(Certificates, path: 'certificates')
+    end
 	end
 end
diff --git a/lib/cloudflare/i_ps.rb b/lib/cloudflare/i_ps.rb
new file mode 100644
index 0000000..4587c47
--- /dev/null
+++ b/lib/cloudflare/i_ps.rb
@@ -0,0 +1,13 @@
+require_relative 'representation'
+
+module Cloudflare
+	class IPs < Representation
+    def cidrs(ipv: nil)
+      if ipv
+        value[:"ipv#{ipv}_cidrs"]
+      else
+        value[:ipv4_cidrs].to_a + value[:ipv6_cidrs].to_a
+      end
+		end
+	end
+end