diff --git a/plugin/js/parsers/AdultfanfictionParser.js b/plugin/js/parsers/AdultfanfictionParser.js
index fa4e1e60..0bb36e22 100644
--- a/plugin/js/parsers/AdultfanfictionParser.js
+++ b/plugin/js/parsers/AdultfanfictionParser.js
@@ -1,10 +1,8 @@
 "use strict";
 
 parserFactory.registerRule(
-    function(url) {
-        return AdultfanfictionParser.isAdultFanFiction(url) * 0.9;
-    },
-    function() { return new AdultfanfictionParser() }
+    (url) => AdultfanfictionParser.isAdultFanFiction(url) * 0.9,
+    () => new AdultfanfictionParser()
 );
 
 class AdultfanfictionParser extends Parser{
diff --git a/plugin/js/parsers/BlogspotParser.js b/plugin/js/parsers/BlogspotParser.js
index 71dc3ccf..6c5ad127 100644
--- a/plugin/js/parsers/BlogspotParser.js
+++ b/plugin/js/parsers/BlogspotParser.js
@@ -16,7 +16,7 @@ parserFactory.registerRule(
         return (util.extractHostName(url).indexOf(".blogspot.") != -1) ||
             ((BlogspotParser.findContentElement(dom) != null) * 0.5);
     },
-    function() { return new BlogspotParser() }
+    () => new BlogspotParser()
 );
 
 parserFactory.registerManualSelect(
diff --git a/plugin/js/parsers/MadaraParser.js b/plugin/js/parsers/MadaraParser.js
index f5eb8967..4b4d3ad3 100644
--- a/plugin/js/parsers/MadaraParser.js
+++ b/plugin/js/parsers/MadaraParser.js
@@ -13,11 +13,8 @@ parserFactory.register("mangabob.com", function() { return new MadaraParser() })
 
 
 parserFactory.registerRule(
-    // return probability (0.0 to 1.0) web page is a Madara Themed page
-    function(url, dom) {
-        return MadaraParser.isMadaraTheme(dom) * 0.6;
-    },
-    function() { return new MadaraParser() }
+    (url, dom) => MadaraParser.isMadaraTheme(dom) * 0.6,
+    () => new MadaraParser()
 );
 
 class MadaraParser extends WordpressBaseParser{
diff --git a/plugin/js/parsers/ReadwnParser.js b/plugin/js/parsers/ReadwnParser.js
index 125d8886..adcbb752 100644
--- a/plugin/js/parsers/ReadwnParser.js
+++ b/plugin/js/parsers/ReadwnParser.js
@@ -22,11 +22,21 @@ parserFactory.register("wuxiar.com", () => new ReadwnParser());
 parserFactory.register("wuxiau.com", () => new ReadwnParser());
 parserFactory.register("wuxiazone.com", () => new ReadwnParser());
 
+parserFactory.registerRule(
+    (url, dom) => ReadwnParser.isReadwn(dom) * 0.8,
+    () => new ReadwnParser()
+);
+
 class ReadwnParser extends Parser{
     constructor() {
         super();
     }
 
+    static isReadwn(dom) {
+        return (dom.querySelector(ReadwnParser.CoverSelector) !== null)
+            && (dom.querySelector(ReadwnParser.AuthorSelector) !== null)
+    }
+
     async getChapterUrls(dom, chapterUrlsUI) {
         return this.getChapterUrlsFromMultipleTocPages(dom,
             ReadwnParser.extractPartialChapterList,
@@ -77,7 +87,7 @@ class ReadwnParser extends Parser{
     }
 
     extractAuthor(dom) {
-        let authorLabel = dom.querySelector("span[itemprop='author']");
+        let authorLabel = dom.querySelector(ReadwnParser.AuthorSelector);
         return authorLabel?.textContent ?? super.extractAuthor(dom);
     }
 
@@ -91,10 +101,13 @@ class ReadwnParser extends Parser{
     }
 
     findCoverImageUrl(dom) {
-        return util.getFirstImgSrc(dom, "figure.cover");
+        return util.getFirstImgSrc(dom, ReadwnParser.CoverSelector);
     }
 
     getInformationEpubItemChildNodes(dom) {
         return [...dom.querySelectorAll(".summary .content")];
     }
 }
+
+ReadwnParser.CoverSelector = "figure.cover";
+ReadwnParser.AuthorSelector = "span[itemprop='author']";
diff --git a/plugin/js/parsers/WordpressBaseParser.js b/plugin/js/parsers/WordpressBaseParser.js
index 0479302d..972766c0 100644
--- a/plugin/js/parsers/WordpressBaseParser.js
+++ b/plugin/js/parsers/WordpressBaseParser.js
@@ -21,7 +21,7 @@ parserFactory.registerRule(
         return ((WordpressBaseParser.findContentElement(dom) != null) &&
             (WordpressBaseParser.findChapterTitleElement(dom) != null)) * 0.5;
     },
-    function() { return new WordpressBaseParser() }
+    () => new WordpressBaseParser()
 );
 
 parserFactory.registerManualSelect(