diff --git a/pkg/config/config.go b/pkg/config/config.go
index 99aa618..845fcfd 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -16,6 +16,7 @@ type Settings struct {
 	Ports   string
 	Dorking bool
 	Git     bool
+	Whois   bool
 	Threads int
 	Nuclei  bool
 	Timeout time.Duration
@@ -58,6 +59,7 @@ func Parse() *Settings {
 		flagSet.BoolVar(&settings.Git, "git", false, "Enable git repository scanning"),
 		flagSet.BoolVar(&settings.Nuclei, "nuclei", false, "Enable scanning using nuclei templates"),
 		flagSet.BoolVar(&settings.NoScan, "noscan", false, "Do not perform base URL (robots.txt, etc) scanning"),
+		flagSet.BoolVar(&settings.Whois, "whois", false, "Enable WHOIS lookup"),
 	)
 
 	flagSet.CreateGroup("runtime", "Runtime",
diff --git a/pkg/scan/whois.go b/pkg/scan/whois.go
new file mode 100644
index 0000000..239afdc
--- /dev/null
+++ b/pkg/scan/whois.go
@@ -0,0 +1,36 @@
+package scan
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/charmbracelet/log"
+	"github.com/dropalldatabases/sif/internal/styles"
+	"github.com/dropalldatabases/sif/pkg/logger"
+	"github.com/likexian/whois"
+)
+
+func Whois(url string, logdir string) {
+	fmt.Println(styles.Separator.Render("💭 Starting " + styles.Status.Render("WHOIS Lookup") + "..."))
+
+	sanitizedURL := strings.Split(url, "://")[1]
+	if logdir != "" {
+		if err := logger.WriteHeader(sanitizedURL, logdir, " port scanning"); err != nil {
+			log.Errorf("Error creating log file: %v", err)
+			return
+		}
+	}
+
+	whoislog := log.NewWithOptions(os.Stderr, log.Options{
+		Prefix: "WHOIS 💭",
+	})
+
+	whoislog.Infof("Starting WHOIS")
+
+	result, err := whois.Whois(sanitizedURL)
+	if err == nil {
+		log.Info(result)
+		logger.Write(sanitizedURL, logdir, result)
+	}
+}
diff --git a/sif.go b/sif.go
index ac448c7..83291d2 100644
--- a/sif.go
+++ b/sif.go
@@ -102,6 +102,10 @@ func (app *App) Run() error {
 			scan.Ports(app.settings.Ports, url, app.settings.Timeout, app.settings.Threads, app.settings.LogDir)
 		}
 
+		if app.settings.Whois {
+			scan.Whois(url, app.settings.LogDir)
+		}
+
 		if app.settings.ApiMode {
 			utils.ReturnApiOutput()
 		}