diff --git a/nselib/data/http-devframework-fingerprints.lua b/nselib/data/http-devframework-fingerprints.lua
index 20756263a..47238c4f9 100644
--- a/nselib/data/http-devframework-fingerprints.lua
+++ b/nselib/data/http-devframework-fingerprints.lua
@@ -2,7 +2,6 @@ local http = require "http"
 local io = require "io"
 local string = require "string"
 local table = require "table"
-local url = require "url"
 
 ---
 -- http-devframework-fingerprints.lua
diff --git a/scripts/broadcast-eigrp-discovery.nse b/scripts/broadcast-eigrp-discovery.nse
index 03cd9fc1e..5d4235cf5 100644
--- a/scripts/broadcast-eigrp-discovery.nse
+++ b/scripts/broadcast-eigrp-discovery.nse
@@ -1,6 +1,5 @@
 local eigrp = require "eigrp"
 local nmap = require "nmap"
-local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
 local bin = require "bin"
diff --git a/scripts/broadcast-pppoe-discover.nse b/scripts/broadcast-pppoe-discover.nse
index 35f303b3b..153eccb1d 100644
--- a/scripts/broadcast-pppoe-discover.nse
+++ b/scripts/broadcast-pppoe-discover.nse
@@ -1,4 +1,3 @@
-local bin = require "bin"
 local nmap = require "nmap"
 local pppoe = require "pppoe"
 local stdnse = require "stdnse"
diff --git a/scripts/cassandra-info.nse b/scripts/cassandra-info.nse
index bdcf77e7a..cfe8d7d31 100644
--- a/scripts/cassandra-info.nse
+++ b/scripts/cassandra-info.nse
@@ -2,8 +2,6 @@ local creds = require "creds"
 local nmap = require "nmap"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
-local bin = require "bin"
-local string = require "string"
 local table = require "table"
 
 local cassandra = stdnse.silent_require "cassandra"
diff --git a/scripts/cccam-version.nse b/scripts/cccam-version.nse
index 2f5ca3158..a7cdaf735 100644
--- a/scripts/cccam-version.nse
+++ b/scripts/cccam-version.nse
@@ -1,7 +1,5 @@
-local bin = require "bin"
 local nmap = require "nmap"
 local shortport = require "shortport"
-local string = require "string"
 local formulas = require "formulas"
 
 description = [[
diff --git a/scripts/duplicates.nse b/scripts/duplicates.nse
index bd15fa21b..1272f2a78 100644
--- a/scripts/duplicates.nse
+++ b/scripts/duplicates.nse
@@ -2,7 +2,6 @@ local ipOps = require "ipOps"
 local nmap = require "nmap"
 local ssh1 = require "ssh1"
 local stdnse = require "stdnse"
-local string = require "string"
 local table = require "table"
 
 description = [[
diff --git a/scripts/hostmap-bfk.nse b/scripts/hostmap-bfk.nse
index 914f4c6bc..19dc62e79 100644
--- a/scripts/hostmap-bfk.nse
+++ b/scripts/hostmap-bfk.nse
@@ -1,4 +1,3 @@
-local dns = require "dns"
 local http = require "http"
 local io = require "io"
 local ipOps = require "ipOps"
diff --git a/scripts/hostmap-ip2hosts.nse b/scripts/hostmap-ip2hosts.nse
index 464faa508..9c495f136 100644
--- a/scripts/hostmap-ip2hosts.nse
+++ b/scripts/hostmap-ip2hosts.nse
@@ -44,7 +44,6 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
 categories = {"external", "discovery"}
 
-local dns = require "dns"
 local ipOps = require "ipOps"
 local io = require "io"
 local http = require "http"
diff --git a/scripts/http-adobe-coldfusion-apsa1301.nse b/scripts/http-adobe-coldfusion-apsa1301.nse
index 30658d82e..7278547d7 100644
--- a/scripts/http-adobe-coldfusion-apsa1301.nse
+++ b/scripts/http-adobe-coldfusion-apsa1301.nse
@@ -24,7 +24,6 @@ local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local string = require "string"
-local url = require "url"
 
 portrule = shortport.http
 local DEFAULT_PATH = "/CFIDE/adminapi/"
diff --git a/scripts/http-devframework.nse b/scripts/http-devframework.nse
index 4f04fe010..3bbb57127 100644
--- a/scripts/http-devframework.nse
+++ b/scripts/http-devframework.nse
@@ -41,7 +41,6 @@ categories = {"discovery", "intrusive"}
 author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-local http = require "http"
 local nmap = require "nmap"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
diff --git a/scripts/http-dlink-backdoor.nse b/scripts/http-dlink-backdoor.nse
index e0859492f..9df9ba9ec 100644
--- a/scripts/http-dlink-backdoor.nse
+++ b/scripts/http-dlink-backdoor.nse
@@ -37,7 +37,6 @@ categories = {"exploit","vuln"}
 
 local http = require "http"
 local shortport = require "shortport"
-local stdnse = require "stdnse"
 local string = require "string"
 local vulns = require "vulns"
 
diff --git a/scripts/http-errors.nse b/scripts/http-errors.nse
index 475dadeaf..326e9f625 100644
--- a/scripts/http-errors.nse
+++ b/scripts/http-errors.nse
@@ -37,7 +37,6 @@ categories = {"discovery", "intrusive"}
 author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
diff --git a/scripts/http-exif-spider.nse b/scripts/http-exif-spider.nse
index 66dad911b..efdb55198 100644
--- a/scripts/http-exif-spider.nse
+++ b/scripts/http-exif-spider.nse
@@ -27,7 +27,6 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"intrusive"}
 
 local shortport = require 'shortport'
-local http = require 'http'
 local stdnse = require 'stdnse'
 local httpspider = require 'httpspider'
 local string = require 'string'
diff --git a/scripts/http-form-fuzzer.nse b/scripts/http-form-fuzzer.nse
index 7c5e79f38..5d1b7a0aa 100644
--- a/scripts/http-form-fuzzer.nse
+++ b/scripts/http-form-fuzzer.nse
@@ -56,7 +56,6 @@ local http = require 'http'
 local stdnse = require 'stdnse'
 local string = require 'string'
 local table = require 'table'
-local tab = require 'tab'
 local url = require 'url'
 
 -- generate a charset that will be used for fuzzing
diff --git a/scripts/http-frontpage-login.nse b/scripts/http-frontpage-login.nse
index ed594882b..c89ce3362 100644
--- a/scripts/http-frontpage-login.nse
+++ b/scripts/http-frontpage-login.nse
@@ -2,7 +2,6 @@ local stdnse = require "stdnse"
 local shortport = require "shortport"
 local http = require "http"
 local string = require "string"
-local url = require "url"
 local vulns = require "vulns"
 
 
diff --git a/scripts/http-mobileversion-checker.nse b/scripts/http-mobileversion-checker.nse
index 367bd0fad..213771d0d 100644
--- a/scripts/http-mobileversion-checker.nse
+++ b/scripts/http-mobileversion-checker.nse
@@ -30,7 +30,6 @@ local shortport = require "shortport"
 local httpspider = require "httpspider"
 local stdnse = require "stdnse"
 local table = require "table"
-local string = require "string"
 
 getLastLoc = function(host, port, useragent)
 
diff --git a/scripts/http-referer-checker.nse b/scripts/http-referer-checker.nse
index f42dc6edb..8a3d1d0f7 100644
--- a/scripts/http-referer-checker.nse
+++ b/scripts/http-referer-checker.nse
@@ -24,7 +24,6 @@ categories = {"discovery", "safe"}
 author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 
-local http = require "http"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
diff --git a/scripts/http-sitemap-generator.nse b/scripts/http-sitemap-generator.nse
index 9e9f5384c..2249f89c7 100644
--- a/scripts/http-sitemap-generator.nse
+++ b/scripts/http-sitemap-generator.nse
@@ -48,7 +48,6 @@ license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"discovery", "intrusive"}
 
 local shortport = require 'shortport'
-local http = require 'http'
 local stdnse = require 'stdnse'
 local url = require 'url'
 local httpspider = require 'httpspider'
diff --git a/scripts/http-title.nse b/scripts/http-title.nse
index 34d5f537e..eff9f3083 100644
--- a/scripts/http-title.nse
+++ b/scripts/http-title.nse
@@ -1,11 +1,8 @@
-local dns = require "dns"
 local http = require "http"
-local ipOps = require "ipOps"
 local nmap = require "nmap"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local string = require "string"
-local url = require "url"
 
 description = [[
 Shows the title of the default page of a web server.
diff --git a/scripts/http-useragent-tester.nse b/scripts/http-useragent-tester.nse
index 9b4cd0454..45ebb6d84 100644
--- a/scripts/http-useragent-tester.nse
+++ b/scripts/http-useragent-tester.nse
@@ -52,7 +52,6 @@ local httpspider = require "httpspider"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
-local string = require "string"
 
 getLastLoc = function(host, port, useragent)
 
diff --git a/scripts/http-xssed.nse b/scripts/http-xssed.nse
index 0c7bc919f..780a92380 100644
--- a/scripts/http-xssed.nse
+++ b/scripts/http-xssed.nse
@@ -30,7 +30,6 @@ categories = {"safe", "external", "discovery"}
 local http = require "http"
 local nmap = require "nmap"
 local shortport = require "shortport"
-local stdnse = require "stdnse"
 local table = require "table"
 local string = require "string"
 
diff --git a/scripts/ip-forwarding.nse b/scripts/ip-forwarding.nse
index 0c2349070..61cdb8dc5 100644
--- a/scripts/ip-forwarding.nse
+++ b/scripts/ip-forwarding.nse
@@ -2,7 +2,6 @@ local dns = require "dns"
 local nmap = require "nmap"
 local packet = require "packet"
 local stdnse = require "stdnse"
-local string = require "string"
 local ipOps = require "ipOps"
 
 description = [[
diff --git a/scripts/ms-sql-dac.nse b/scripts/ms-sql-dac.nse
index 87ba6d150..323021e66 100644
--- a/scripts/ms-sql-dac.nse
+++ b/scripts/ms-sql-dac.nse
@@ -2,7 +2,6 @@ local coroutine = require "coroutine"
 local mssql = require "mssql"
 local nmap = require "nmap"
 local stdnse = require "stdnse"
-local string = require "string"
 local table = require "table"
 
 description = [[
diff --git a/scripts/msrpc-enum.nse b/scripts/msrpc-enum.nse
index adb1a52ba..804e2a2a8 100644
--- a/scripts/msrpc-enum.nse
+++ b/scripts/msrpc-enum.nse
@@ -1,6 +1,5 @@
 local msrpc = require "msrpc"
 local smb = require "smb"
-local string = require "string"
 local stdnse = require "stdnse"
 local table = require "table"
 
diff --git a/scripts/rmi-vuln-classloader.nse b/scripts/rmi-vuln-classloader.nse
index 2a578eca6..f2f3dab45 100644
--- a/scripts/rmi-vuln-classloader.nse
+++ b/scripts/rmi-vuln-classloader.nse
@@ -1,7 +1,6 @@
 local bin = require "bin"
 local rmi = require "rmi"
 local shortport = require "shortport"
-local stdnse = require "stdnse"
 local string = require "string"
 local vulns = require "vulns"
 
diff --git a/scripts/rpc-grind.nse b/scripts/rpc-grind.nse
index ea6df1feb..d173ba07f 100644
--- a/scripts/rpc-grind.nse
+++ b/scripts/rpc-grind.nse
@@ -1,7 +1,6 @@
 local stdnse = require "stdnse"
 local nmap = require "nmap"
 local rpc = require "rpc"
-local datafiles = require "datafiles"
 local bin = require "bin"
 local math = require "math"
 local io = require "io"
diff --git a/scripts/sip-enum-users.nse b/scripts/sip-enum-users.nse
index 356d5fdf5..965e64f5f 100644
--- a/scripts/sip-enum-users.nse
+++ b/scripts/sip-enum-users.nse
@@ -7,7 +7,6 @@ local stdnse = require "stdnse"
 local table = require "table"
 local math = require "math"
 local brute = require "brute"
-local creds = require "creds"
 local unpwdb = require "unpwdb"
 
 description = [[
diff --git a/scripts/smb-vuln-ms10-054.nse b/scripts/smb-vuln-ms10-054.nse
index cc66e32d3..563a2de2c 100644
--- a/scripts/smb-vuln-ms10-054.nse
+++ b/scripts/smb-vuln-ms10-054.nse
@@ -1,7 +1,5 @@
 local bin = require "bin"
-local msrpc = require "msrpc"
 local smb = require "smb"
-local string = require "string"
 local vulns = require "vulns"
 local stdnse = require "stdnse"
 
diff --git a/scripts/socks-auth-info.nse b/scripts/socks-auth-info.nse
index f3141473b..99829be98 100644
--- a/scripts/socks-auth-info.nse
+++ b/scripts/socks-auth-info.nse
@@ -1,6 +1,5 @@
 local shortport = require "shortport"
 local socks = require "socks"
-local stdnse = require "stdnse"
 local table = require "table"
 
 description = [[
diff --git a/scripts/sstp-discover.nse b/scripts/sstp-discover.nse
index cf3e243de..9a1cedb11 100644
--- a/scripts/sstp-discover.nse
+++ b/scripts/sstp-discover.nse
@@ -1,4 +1,3 @@
-local nmap = require 'nmap'
 local comm = require 'comm'
 local string = require 'string'
 local stdnse = require 'stdnse'
diff --git a/scripts/targets-ipv6-multicast-echo.nse b/scripts/targets-ipv6-multicast-echo.nse
index 064d69bf4..caa65fece 100644
--- a/scripts/targets-ipv6-multicast-echo.nse
+++ b/scripts/targets-ipv6-multicast-echo.nse
@@ -2,7 +2,6 @@ local coroutine = require "coroutine"
 local nmap = require "nmap"
 local packet = require "packet"
 local stdnse = require "stdnse"
-local string = require "string"
 local tab = require "tab"
 local table = require "table"
 local target = require "target"
diff --git a/scripts/teamspeak2-version.nse b/scripts/teamspeak2-version.nse
index 982c87ff2..1f8415363 100644
--- a/scripts/teamspeak2-version.nse
+++ b/scripts/teamspeak2-version.nse
@@ -2,7 +2,6 @@ local comm = require "comm"
 local shortport = require "shortport"
 local nmap = require "nmap"
 local bin = require "bin"
-local stdnse = require "stdnse"
 local string = require "string"
 
 description = [[
diff --git a/scripts/tls-nextprotoneg.nse b/scripts/tls-nextprotoneg.nse
index eef78b452..a9dea5145 100644
--- a/scripts/tls-nextprotoneg.nse
+++ b/scripts/tls-nextprotoneg.nse
@@ -1,5 +1,4 @@
 local nmap = require "nmap"
-local string = require "string"
 local shortport = require "shortport"
 local stdnse = require "stdnse"
 local table = require "table"
diff --git a/scripts/whois-domain.nse b/scripts/whois-domain.nse
index a59fbc983..c57b1e06e 100644
--- a/scripts/whois-domain.nse
+++ b/scripts/whois-domain.nse
@@ -79,7 +79,6 @@ author = "George Chatzisofroniou"
 license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
 categories = {"discovery", "external", "safe"}
 
-local http = require "http"
 local io = require "io"
 local ipOps = require "ipOps"
 local math = require "math"