diff --git a/analyze.py b/analyze.py
index 1b35f39..638606f 100755
--- a/analyze.py
+++ b/analyze.py
@@ -391,6 +391,10 @@ def build_ciphers_lists():
         raw = urllib2.urlopen(sstlsurl).read()
         conf = json.loads(raw)
         logging.debug('retrieving online server side tls recommendations from %s' % sstlsurl)
+    except urllib2.URLError:
+        with open('server-side-tls-conf.json', 'r') as f:
+            conf = json.load(f)
+            logging.debug('Error connecting to %s; using local archive of server side tls recommendations' % sstlsurl)
     except:
         print("failed to retrieve JSON configurations from %s" % sstlsurl)
         sys.exit(23)
diff --git a/server-side-tls-conf.json b/server-side-tls-conf.json
new file mode 100644
index 0000000..ef7c2a3
--- /dev/null
+++ b/server-side-tls-conf.json
@@ -0,0 +1,147 @@
+{
+    "href": "https://statics.tls.security.mozilla.org/server-side-tls-conf.json",
+    "configurations": {
+        "modern": {
+            "openssl_ciphersuites": "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256",
+            "ciphersuites": [
+                "ECDHE-ECDSA-AES256-GCM-SHA384",
+                "ECDHE-RSA-AES256-GCM-SHA384",
+                "ECDHE-ECDSA-CHACHA20-POLY1305",
+                "ECDHE-RSA-CHACHA20-POLY1305",
+                "ECDHE-ECDSA-AES128-GCM-SHA256",
+                "ECDHE-RSA-AES128-GCM-SHA256",
+                "ECDHE-ECDSA-AES256-SHA384",
+                "ECDHE-RSA-AES256-SHA384",
+                "ECDHE-ECDSA-AES128-SHA256",
+                "ECDHE-RSA-AES128-SHA256"
+            ],
+            "tls_versions": ["TLSv1.2" ],
+            "tls_curves": [ "prime256v1", "secp384r1", "secp521r1" ],
+            "certificate_types": ["ecdsa"],
+            "certificate_curves": ["prime256v1", "secp384r1", "secp521r1"],
+            "certificate_signatures": ["sha256WithRSAEncryption", "ecdsa-with-SHA256", "ecdsa-with-SHA384", "ecdsa-with-SHA512"],
+            "rsa_key_size": 2048,
+            "dh_param_size": null,
+            "ecdh_param_size": 256,
+            "hsts_min_age": 15768000,
+            "oldest_clients": [ "Firefox 27", "Chrome 30", "IE 11 on Windows 7", "Edge 1", "Opera 17", "Safari 9", "Android 5.0", "Java 8"]
+        },
+        "intermediate": {
+            "openssl_ciphersuites": "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS",
+            "ciphersuites": [
+                "ECDHE-ECDSA-CHACHA20-POLY1305",
+                "ECDHE-RSA-CHACHA20-POLY1305",
+                "ECDHE-ECDSA-AES128-GCM-SHA256",
+                "ECDHE-RSA-AES128-GCM-SHA256",
+                "ECDHE-ECDSA-AES256-GCM-SHA384",
+                "ECDHE-RSA-AES256-GCM-SHA384",
+                "DHE-RSA-AES128-GCM-SHA256",
+                "DHE-RSA-AES256-GCM-SHA384",
+                "ECDHE-ECDSA-AES128-SHA256",
+                "ECDHE-RSA-AES128-SHA256",
+                "ECDHE-ECDSA-AES128-SHA",
+                "ECDHE-RSA-AES256-SHA384",
+                "ECDHE-RSA-AES128-SHA",
+                "ECDHE-ECDSA-AES256-SHA384",
+                "ECDHE-ECDSA-AES256-SHA",
+                "ECDHE-RSA-AES256-SHA",
+                "DHE-RSA-AES128-SHA256",
+                "DHE-RSA-AES128-SHA",
+                "DHE-RSA-AES256-SHA256",
+                "DHE-RSA-AES256-SHA",
+                "ECDHE-ECDSA-DES-CBC3-SHA",
+                "ECDHE-RSA-DES-CBC3-SHA",
+                "EDH-RSA-DES-CBC3-SHA",
+                "AES128-GCM-SHA256",
+                "AES256-GCM-SHA384",
+                "AES128-SHA256",
+                "AES256-SHA256",
+                "AES128-SHA",
+                "AES256-SHA",
+                "DES-CBC3-SHA"
+            ],
+            "tls_versions": ["TLSv1.2", "TLSv1.1", "TLSv1" ],
+            "tls_curves": [ "secp256r1", "secp384r1", "secp521r1" ],
+            "certificate_types": ["rsa"],
+            "certificate_curves": null,
+            "certificate_signatures": ["sha256WithRSAEncryption"],
+            "rsa_key_size": 2048,
+            "dh_param_size": 2048,
+            "ecdh_param_size": 256,
+            "hsts_min_age": 15768000,
+            "oldest_clients": [ "Firefox 1", "Chrome 1", "IE 7", "Opera 5", "Safari 1", "Windows XP IE8", "Android 2.3", "Java 7" ]
+        },
+        "old": {
+            "openssl_ciphersuites": "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:DES-CBC3-SHA:HIGH:SEED:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!RSAPSK:!aDH:!aECDH:!EDH-DSS-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA:!SRP",
+            "ciphersuites": [
+                "ECDHE-ECDSA-CHACHA20-POLY1305",
+                "ECDHE-RSA-CHACHA20-POLY1305",
+                "ECDHE-RSA-AES128-GCM-SHA256",
+                "ECDHE-ECDSA-AES128-GCM-SHA256",
+                "ECDHE-RSA-AES256-GCM-SHA384",
+                "ECDHE-ECDSA-AES256-GCM-SHA384",
+                "DHE-RSA-AES128-GCM-SHA256",
+                "DHE-DSS-AES128-GCM-SHA256",
+                "DHE-DSS-AES256-GCM-SHA384",
+                "DHE-RSA-AES256-GCM-SHA384",
+                "ECDHE-RSA-AES128-SHA256",
+                "ECDHE-ECDSA-AES128-SHA256",
+                "ECDHE-RSA-AES128-SHA",
+                "ECDHE-ECDSA-AES128-SHA",
+                "ECDHE-RSA-AES256-SHA384",
+                "ECDHE-ECDSA-AES256-SHA384",
+                "ECDHE-RSA-AES256-SHA",
+                "ECDHE-ECDSA-AES256-SHA",
+                "DHE-RSA-AES128-SHA256",
+                "DHE-RSA-AES128-SHA",
+                "DHE-DSS-AES128-SHA256",
+                "DHE-RSA-AES256-SHA256",
+                "DHE-DSS-AES256-SHA",
+                "DHE-RSA-AES256-SHA",
+                "ECDHE-RSA-DES-CBC3-SHA",
+                "ECDHE-ECDSA-DES-CBC3-SHA",
+                "EDH-RSA-DES-CBC3-SHA",
+                "AES128-GCM-SHA256",
+                "AES256-GCM-SHA384",
+                "AES128-SHA256",
+                "AES256-SHA256",
+                "AES128-SHA",
+                "AES256-SHA",
+                "DHE-DSS-AES256-SHA256",
+                "DHE-DSS-AES128-SHA",
+                "DES-CBC3-SHA",
+                "DHE-RSA-CHACHA20-POLY1305",
+                "ECDHE-RSA-CAMELLIA256-SHA384",
+                "ECDHE-ECDSA-CAMELLIA256-SHA384",
+                "DHE-RSA-CAMELLIA256-SHA256",
+                "DHE-DSS-CAMELLIA256-SHA256",
+                "DHE-RSA-CAMELLIA256-SHA",
+                "DHE-DSS-CAMELLIA256-SHA",
+                "CAMELLIA256-SHA256",
+                "CAMELLIA256-SHA",
+                "ECDHE-RSA-CAMELLIA128-SHA256",
+                "ECDHE-ECDSA-CAMELLIA128-SHA256",
+                "DHE-RSA-CAMELLIA128-SHA256",
+                "DHE-DSS-CAMELLIA128-SHA256",
+                "DHE-RSA-CAMELLIA128-SHA",
+                "DHE-DSS-CAMELLIA128-SHA",
+                "CAMELLIA128-SHA256",
+                "CAMELLIA128-SHA",
+                "DHE-RSA-SEED-SHA",
+                "DHE-DSS-SEED-SHA",
+                "SEED-SHA"
+            ],
+            "tls_versions": ["TLSv1.2", "TLSv1.1", "TLSv1", "SSLv3" ],
+            "tls_curves": [ "secp256r1", "secp384r1", "secp521r1" ],
+            "certificate_types": ["rsa"],
+            "certificate_curves": null,
+            "certificate_signatures": ["sha1WithRSAEncryption"],
+            "rsa_key_size": 2048,
+            "dh_param_size": 1024,
+            "ecdh_param_size": 160,
+            "hsts_min_age": 15768000,
+            "oldest_clients": [ "Firefox 1", "Chrome 1", "Windows XP IE 6", "Opera 4", "Safari 1", "Java 6" ]
+        }
+    },
+    "version": 4.0
+}