feat: Add skipping domain if checked recently

main.go

@@ -25,6 +25,11 @@ func main() {
 		},
 	}
 
+	recent := make([]string, 20)
+	for i := range recent {
+		recent[i] = ""
+	}
+
 	stream, errStream := certstream.CertStreamEventStream(false)
 	for {
 		select {
@@ -64,10 +69,24 @@ func main() {
 				if domain[0] == '*' || domain == "sni.cloudflaressl.com" {
 					continue
 				}
+
+				// skip if was checked recently
+				skip := false
+				for _, recentDomain := range recent {
+					if domain == recentDomain {
+						skip = true
+					}
+				}
+				if skip {
+					continue
+				}
+
 				log.Println("checking " + domain)
 				go c.CheckGit(domain)
 				go c.CheckEnv(domain)
 				go c.CheckIndex(domain)
+
+				recent = append(recent[1:], domain)
 			}
 
 		case err := <-errStream: