diff --git a/core/options.go b/core/options.go
index 3fc4c10..5175aaa 100644
--- a/core/options.go
+++ b/core/options.go
@@ -23,6 +23,8 @@ type Options struct {
 	Silent            *bool
 	Debug             *bool
 	Version           *bool
+	Similarity	  *float64
+	InputFile	  *string
 }
 
 func ParseOptions() (Options, error) {
@@ -43,6 +45,8 @@ func ParseOptions() (Options, error) {
 		Silent:            flag.Bool("silent", false, "Suppress all output except for errors"),
 		Debug:             flag.Bool("debug", false, "Print debugging information"),
 		Version:           flag.Bool("version", false, "Print current Aquatone version"),
+		Similarity:	   flag.Float64("similarity",0.80,"Cluster Similarity Float for Screenshots. Default 0.80"),
+		InputFile:	   flag.String("inputfile","","Input file to parse hosts (Nmap or Raw) rather than STDIN"),
 	}
 
 	flag.Parse()
diff --git a/main.go b/main.go
index 649aaf0..4bb23fa 100644
--- a/main.go
+++ b/main.go
@@ -9,6 +9,7 @@ import (
 	"os"
 	"strings"
 	"time"
+	"io"
 
 	"github.com/google/uuid"
 	"github.com/michenriksen/aquatone/agents"
@@ -121,9 +122,22 @@ func main() {
 	agents.NewURLTechnologyFingerprinter().Register(sess)
 	agents.NewURLTakeoverDetector().Register(sess)
 
-	reader := bufio.NewReader(os.Stdin)
-	var targets []string
+	var reader io.Reader
+	if *sess.Options.InputFile != "" {
+		//Read from File
+		file, err := os.Open(*sess.Options.InputFile)
+		if err != nil {
+			sess.Out.Fatal("Unable to open input file: %s\n", *sess.Options.InputFile)
+			os.Exit(1)
+		}
+		defer file.Close()
 
+		reader = bufio.NewReader(file)
+	} else {
+		reader = bufio.NewReader(os.Stdin)
+	}
+
+	var targets []string
 	if *sess.Options.Nmap {
 		parser := parsers.NewNmapParser()
 		targets, err = parser.Parse(reader)
@@ -193,7 +207,7 @@ func main() {
 			addToCluster := true
 			for _, pageURL := range cluster {
 				page2 := sess.GetPage(pageURL)
-				if page2 != nil && core.GetSimilarity(page.PageStructure, page2.PageStructure) < 0.80 {
+				if page2 != nil && core.GetSimilarity(page.PageStructure, page2.PageStructure) < *sess.Options.Similarity {
 					addToCluster = false
 					break
 				}