diff --git a/modules/subdomain_modules/anubis_subs.py b/modules/subdomain_modules/anubis_subs.py
index f1c36b8..187c320 100644
--- a/modules/subdomain_modules/anubis_subs.py
+++ b/modules/subdomain_modules/anubis_subs.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python3
 
+from json import loads
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def anubisdb(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}AnubisDB{W}')
diff --git a/modules/subdomain_modules/bevigil_subs.py b/modules/subdomain_modules/bevigil_subs.py
index b5ad16e..aaa8183 100644
--- a/modules/subdomain_modules/bevigil_subs.py
+++ b/modules/subdomain_modules/bevigil_subs.py
@@ -1,31 +1,36 @@
 #!/usr/bin/env python3
 
+from os import environ
+from json import loads, dumps
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads, dumps
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def bevigil(hostname, conf_path, session):
-    with open(f'{conf_path}/keys.json', 'r') as keyfile:
-        json_read = keyfile.read()
-
-    json_load = loads(json_read)
-    try:
-        bevigil_key = json_load['bevigil']
-    except KeyError:
-        log_writer('[bevigil_subs] key missing in keys.json')
-        with open(f'{conf_path}/keys.json', 'w') as outfile:
-            json_load['bevigil'] = None
-            bevigil_key = None
-            outfile.write(
-                dumps(json_load, sort_keys=True, indent=4)
-            )
+    bevigil_key = environ.get('FR_BEVIGIL_KEY')
+
+    if not bevigil_key:
+        log_writer('[bevigil_subs] key missing in env')
+        with open(f'{conf_path}/keys.json', 'r') as keyfile:
+            json_read = keyfile.read()
+
+        json_load = loads(json_read)
+        try:
+            bevigil_key = json_load['bevigil']
+        except KeyError:
+            log_writer('[bevigil_subs] key missing in keys.json')
+            with open(f'{conf_path}/keys.json', 'w') as outfile:
+                json_load['bevigil'] = None
+                bevigil_key = None
+                outfile.write(
+                    dumps(json_load, sort_keys=True, indent=4)
+                )
 
     if bevigil_key is not None:
         print(f'{Y}[!] {C}Requesting {G}BeVigil{W}')
diff --git a/modules/subdomain_modules/certspot_subs.py b/modules/subdomain_modules/certspot_subs.py
index a05b61a..e18f374 100644
--- a/modules/subdomain_modules/certspot_subs.py
+++ b/modules/subdomain_modules/certspot_subs.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python3
 
+from json import loads
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def certspot(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}CertSpotter{W}')
diff --git a/modules/subdomain_modules/crtsh_subs.py b/modules/subdomain_modules/crtsh_subs.py
index 092c78a..d781d95 100644
--- a/modules/subdomain_modules/crtsh_subs.py
+++ b/modules/subdomain_modules/crtsh_subs.py
@@ -1,14 +1,15 @@
 #!/usr/bin/env python3
 
+from json import loads
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
 
 async def crtsh(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}crt.sh{W}')
diff --git a/modules/subdomain_modules/fb_subs.py b/modules/subdomain_modules/fb_subs.py
index 8f799e5..4155e37 100644
--- a/modules/subdomain_modules/fb_subs.py
+++ b/modules/subdomain_modules/fb_subs.py
@@ -1,22 +1,36 @@
 #!/usr/bin/env python3
 
+from os import environ
+from json import loads, dumps
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def fb_cert(hostname, conf_path, session):
-	with open(f'{conf_path}/keys.json', 'r') as keyfile:
-		json_read = keyfile.read()
+	fb_key = environ.get('FR_FB_KEY')
 
-	json_load = loads(json_read)
-	fb_key = json_load['facebook']
+	if not fb_key:
+		log_writer('[fb_subs] key missing in env')
+		with open(f'{conf_path}/keys.json', 'r') as keyfile:
+			json_read = keyfile.read()
+
+		json_load = loads(json_read)
+		try:
+			fb_key = json_load['facebook']
+		except KeyError:
+			log_writer('[fb_subs] key missing in keys.json')
+			with open(f'{conf_path}/keys.json', 'w') as outfile:
+				json_load['facebook'] = None
+				fb_key = None
+				outfile.write(
+					dumps(json_load, sort_keys=True, indent=4)
+				)
 
 	if fb_key is not None:
 		print(f'{Y}[!] {C}Requesting {G}Facebook{W}')
diff --git a/modules/subdomain_modules/htarget_subs.py b/modules/subdomain_modules/htarget_subs.py
index 9133623..a818213 100644
--- a/modules/subdomain_modules/htarget_subs.py
+++ b/modules/subdomain_modules/htarget_subs.py
@@ -1,14 +1,14 @@
 #!/usr/bin/env python3
 
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def hackertgt(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}HackerTarget{W}')
diff --git a/modules/subdomain_modules/shodan_subs.py b/modules/subdomain_modules/shodan_subs.py
index a1da409..6c3a20b 100644
--- a/modules/subdomain_modules/shodan_subs.py
+++ b/modules/subdomain_modules/shodan_subs.py
@@ -1,22 +1,36 @@
 #!/usr/bin/env python3
 
+from os import environ
+from json import loads, dumps
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def shodan(hostname, conf_path, session):
-	with open(f'{conf_path}/keys.json', 'r') as keyfile:
-		json_read = keyfile.read()
+	sho_key = environ.get('FR_SHODAN_KEY')
 
-	json_load = loads(json_read)
-	sho_key = json_load['shodan']
+	if not sho_key:
+		log_writer('[shodan_subs] key missing in env')
+		with open(f'{conf_path}/keys.json', 'r') as keyfile:
+			json_read = keyfile.read()
+
+		json_load = loads(json_read)
+		try:
+			sho_key = json_load['shodan']
+		except KeyError:
+			log_writer('[shodan_subs] key missing in keys.json')
+			with open(f'{conf_path}/keys.json', 'w') as outfile:
+				json_load['shodan'] = None
+				sho_key = None
+				outfile.write(
+					dumps(json_load, sort_keys=True, indent=4)
+				)
 
 	if sho_key is not None:
 		print(f'{Y}[!] {C}Requesting {G}Shodan{W}')
diff --git a/modules/subdomain_modules/sonar_subs.py b/modules/subdomain_modules/sonar_subs.py
index 6bc3cab..4938f1b 100644
--- a/modules/subdomain_modules/sonar_subs.py
+++ b/modules/subdomain_modules/sonar_subs.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python3
 
+from json import loads
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def sonar(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}Sonar{W}')
diff --git a/modules/subdomain_modules/thcrowd_subs.py b/modules/subdomain_modules/thcrowd_subs.py
index 1ce44d6..b0add95 100644
--- a/modules/subdomain_modules/thcrowd_subs.py
+++ b/modules/subdomain_modules/thcrowd_subs.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python3
 
+from json import loads
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def thcrowd(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}ThreatCrowd{W}')
diff --git a/modules/subdomain_modules/thminer_subs.py b/modules/subdomain_modules/thminer_subs.py
index afd570d..b2589d8 100644
--- a/modules/subdomain_modules/thminer_subs.py
+++ b/modules/subdomain_modules/thminer_subs.py
@@ -1,15 +1,15 @@
 #!/usr/bin/env python3
 
+from json import loads
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def thminer(hostname, session):
 	print(f'{Y}[!] {C}Requesting {G}ThreatMiner{W}')
diff --git a/modules/subdomain_modules/virustotal_subs.py b/modules/subdomain_modules/virustotal_subs.py
index c5a6ae6..2677038 100644
--- a/modules/subdomain_modules/virustotal_subs.py
+++ b/modules/subdomain_modules/virustotal_subs.py
@@ -1,22 +1,36 @@
 #!/usr/bin/env python3
 
+from os import environ
+from json import loads, dumps
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-from json import loads
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def virust(hostname, conf_path, session):
-	with open(f'{conf_path}/keys.json', 'r') as keyfile:
-		json_read = keyfile.read()
+	vt_key = environ.get('FR_VT_KEY')
 
-	json_load = loads(json_read)
-	vt_key = json_load['virustotal']
+	if not vt_key:
+		log_writer('[virustotal_subs] key missing in env')
+		with open(f'{conf_path}/keys.json', 'r') as keyfile:
+			json_read = keyfile.read()
+
+		json_load = loads(json_read)
+		try:
+			vt_key = json_load['virustotal']
+		except KeyError:
+			log_writer('[virustotal_subs] key missing in keys.json')
+			with open(f'{conf_path}/keys.json', 'w') as outfile:
+				json_load['virustotal'] = None
+				vt_key = None
+				outfile.write(
+					dumps(json_load, sort_keys=True, indent=4)
+				)
 
 	if vt_key is not None:
 		print(f'{Y}[!] {C}Requesting {G}VirusTotal{W}')
diff --git a/modules/subdomain_modules/wayback_subs.py b/modules/subdomain_modules/wayback_subs.py
index 219b9b4..3a9f8e1 100644
--- a/modules/subdomain_modules/wayback_subs.py
+++ b/modules/subdomain_modules/wayback_subs.py
@@ -1,14 +1,14 @@
 #!/usr/bin/env python3
 
+import modules.subdom as parent
+from modules.write_log import log_writer
+
 R = '\033[31m'  # red
 G = '\033[32m'  # green
 C = '\033[36m'  # cyan
 W = '\033[0m'   # white
 Y = '\033[33m'  # yellow
 
-import modules.subdom as parent
-from modules.write_log import log_writer
-
 
 async def machine(hostname, session):
     print(f'{Y}[!] {C}Requesting {G}Wayback{W}')