diff --git a/twtxt_registry_client/__main__.py b/twtxt_registry_client/__main__.py
index 2dfd045..3759b78 100755
--- a/twtxt_registry_client/__main__.py
+++ b/twtxt_registry_client/__main__.py
@@ -6,15 +6,16 @@ from twtxt_registry_client import RegistryClient
 
 @click.group(name='twtxt-registry')
 @click.argument('registry_url', required=True)
+@click.option('-k', '--insecure', is_flag=True)
 @click.pass_context
-def cli(ctx, registry_url):
+def cli(ctx, registry_url, insecure):
     scheme, netloc, path, query, fragment = urlsplit(registry_url)
     if not scheme:
         scheme = 'https'
     if not netloc and path:
         netloc, _, path = path.partition('/')
     registry_url = urlunsplit((scheme, netloc, path, query, fragment))
-    ctx.obj = RegistryClient(registry_url)
+    ctx.obj = RegistryClient(registry_url, insecure=insecure)
 
 
 @cli.command()
diff --git a/twtxt_registry_client/client.py b/twtxt_registry_client/client.py
index 8fb43ad..b5ad1ce 100644
--- a/twtxt_registry_client/client.py
+++ b/twtxt_registry_client/client.py
@@ -4,8 +4,10 @@ import requests
 
 class RegistryClient(object):
 
-    def __init__(self, registry_url):
+    def __init__(self, registry_url, insecure=False):
         self.registry_url = registry_url
+        self.session = requests.Session()
+        self.session.verify = not insecure
 
     def request(self, method, endpoint, *, format='plain', **params):
         resp = method(
@@ -17,10 +19,10 @@ class RegistryClient(object):
         return resp
 
     def get(self, *args, **kwargs):
-        return self.request(requests.get, *args, **kwargs)
+        return self.request(self.session.get, *args, **kwargs)
 
     def post(self, *args, **kwargs):
-        return self.request(requests.post, *args, **kwargs)
+        return self.request(self.session.post, *args, **kwargs)
 
     def register(self, nickname, url, *, format='plain'):
         return self.post(