diff --git a/check_speedtest.py b/check_speedtest.py
new file mode 100644
index 0000000..83e3c0e
--- /dev/null
+++ b/check_speedtest.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+import argparse
+import sys
+import traceback
+
+from cloudflarepycli import cloudflareclass
+
+import checker.nagios as nagios
+
+
+def main():
+    """
+    Copied from __main__.py
+    https://github.com/tevslin/cloudflarepycli/blob/main/src/cloudflarepycli/__main__.py
+    """
+    parser = argparse.ArgumentParser(description='Check internet speed.')
+    parser.add_argument('--warn-up', type=int, default=999999, help='Warn level of upload speed in Mbps.')
+    parser.add_argument('--critical-up', type=int, default=999999, help='Critical level of upload speed in Mbps.')
+    parser.add_argument('--warn-down', type=int, default=999999, help='Warn level of download speed in Mbps.')
+    parser.add_argument('--critical-down', type=int, default=999999, help='Critical level of download speed in Mbps.')
+    parser.add_argument('--warn-latency', type=int, default=60, help='Warn level of latency in ms.')
+    parser.add_argument('--critical-latency', type=int, default=100, help='Critical level of latency in ms.')
+    args = parser.parse_args()
+
+    speedtest_results = cloudflareclass.cloudflare(printit=False).runalltests()
+
+    out_str = f"upload: {speedtest_results['90th_percentile_upload_speed']['value']} Mbps, download: {speedtest_results['90th_percentile_download_speed']['value']} Mbps, latency: {speedtest_results['latency_ms']['value']} ms, Jitter: {speedtest_results['Jitter_ms']['value']} ms"
+    perf_data = f"'upload'={speedtest_results['90th_percentile_upload_speed']['value'] * 1e+6}B;{args.warn_up * 1e+6};{args.critical_up * 1e+6};0; 'download'={speedtest_results['90th_percentile_download_speed']['value'] * 1e+6}B;{args.warn_down * 1e+6};{args.critical_down * 1e+6};0; 'latency_ms'={speedtest_results['latency_ms']['value']}ms;{args.warn_latency};{args.critical_latency};0; 'Jitter_ms'={speedtest_results['Jitter_ms']['value']}ms;;;0;"
+
+    exit_code = nagios.OK
+
+    if speedtest_results['90th_percentile_upload_speed']['value'] <= args.warn_up and exit_code < nagios.WARNING:
+        exit_code = nagios.WARNING
+    if speedtest_results['90th_percentile_upload_speed']['value'] <= args.critical_up and exit_code < nagios.CRITICAL:
+        exit_code = nagios.CRITICAL
+
+    if speedtest_results['90th_percentile_download_speed']['value'] <= args.warn_down and exit_code < nagios.WARNING:
+        exit_code = nagios.WARNING
+    if speedtest_results['90th_percentile_download_speed']['value'] <= args.critical_down and exit_code < nagios.CRITICAL:
+        exit_code = nagios.CRITICAL
+
+    if speedtest_results['latency_ms']['value'] <= args.warn_latency and exit_code < nagios.WARNING:
+        exit_code = nagios.WARNING
+    if speedtest_results['latency_ms']['value'] <= args.warn_latency and exit_code < nagios.CRITICAL:
+        exit_code = nagios.CRITICAL
+
+    if exit_code == nagios.OK:
+        status_str = 'OK'
+    elif exit_code == nagios.WARNING:
+        status_str = 'WARN'
+    elif exit_code == nagios.CRITICAL:
+        status_str = 'CRITICAL'
+    else:
+        status_str = 'UNKNOWN'
+
+    print(f'{status_str} - {out_str} |{perf_data}')
+    sys.exit(exit_code)
+
+
+if __name__ == "__main__":
+    try:
+        main()
+    except Exception as e:
+        print(f'UNKNOWN: exception "{e}"')
+        print(traceback.format_exc())
+        sys.exit(nagios.UNKNOWN)
diff --git a/install.sh b/install.sh
index 747cf30..88a0c4a 100755
--- a/install.sh
+++ b/install.sh
@@ -12,8 +12,9 @@ ln_existing() {
 }
 
 apt update
-apt install -y python3-venv git sysstat bc
+apt install -y python3-venv git sysstat bc smartmontools curl recode python3-pip
 pip install -U pip wheel setuptools
+pip install psutil check_systemd
 
 mkdir -p /usr/lib64/nagios/plugins/
 
diff --git a/requirements.txt b/requirements.txt
index 5ffbed1..c53f027 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,4 +13,5 @@ aiofiles~=0.6.0
 markdown~=3.4.1
 psutil~=5.9.4
 hurry.filesize
-certifi
\ No newline at end of file
+certifi
+cloudflarepycli
\ No newline at end of file