diff --git a/src/js/url_exist.js b/src/js/url_exist.js
index a4b5905..c665bc3 100644
--- a/src/js/url_exist.js
+++ b/src/js/url_exist.js
@@ -11,43 +11,42 @@
  * @returns
  */
 function parseURL(url, typeURL) {
-
-    let ref = "";
-    let title = "";
-    if (typeURL === 0) {
-        ref = url.href;
-        title = url.title;
-    } else if (typeURL === 1) {
-        ref = url.src;
-        title = url.alt;
-    }
-    if (ref.match(/index$/)) {
-        ref = ref.replace(/index$/, "");
-    }
-    if (ref.includes("%5C")) {
-        ref = ref.replace(/%5C/g, "/");
-    }
-    if (ref.match(/\.md\/$/)) {
-        ref = ref.replace(/\.md\/$/, "/");
-    }
-    ref = decodeURI(ref);
-    if (typeURL === 0) {
-        url.href = ref;
-        url.title = title;
-        if (title.length === 0) {
-            title = url.innerText;
-            url.title = title;
-        }
-    } else if (typeURL === 1) {
-        url.src = ref;
-        url.alt = title;
-    }
-    return {
-        title,
-        ref,
-        url
-    };
-}
+	let ref = "";
+	let title = "";
+	if (typeURL === 0) {
+		ref = url.href;
+		title = url.title;
+	} else if (typeURL === 1) {
+		ref = url.src;
+		title = url.alt;
+	}
+	if (ref.match(/index$/)) {
+		ref = ref.replace(/index$/, "");
+	}
+	if (ref.includes("%5C")) {
+		ref = ref.replace(/%5C/g, "/");
+	}
+	if (ref.match(/\.md\/$/)) {
+		ref = ref.replace(/\.md\/$/, "/");
+	}
+	ref = decodeURI(ref);
+	if (typeURL === 0) {
+		url.href = ref;
+		url.title = title;
+		if (title.length === 0) {
+			title = url.innerText;
+			url.title = title;
+		}
+	} else if (typeURL === 1) {
+		url.src = ref;
+		url.alt = title;
+	}
+	return {
+		title,
+		ref,
+		url,
+	};
+} 
 
 /**
  * Use search/all_files.json to check if the url exists
@@ -58,66 +57,84 @@ function parseURL(url, typeURL) {
  * @returns {string[]} history
  */
 function checkIfInternalLinksExists(ref, title, url, history) {
-    //return if the url is not internal
-    //verify by checking if the url starts with the blog url
-    let cleanURL = url.href.replace(url.host, "").replace(/http(s)?:(\/){1,3}/gi, "").replace(/^\//, "");
-    cleanURL = cleanURL.trim().length === 0 ? "./" : decodeURI(cleanURL).toLowerCase();
-    const blogURL = document.querySelector('meta[name="site_url"]').content;
-    const part = `${blogURL.split("/").filter((part) => part.length > 0).pop()}/`;
+	//return if the url is not internal
+	//verify by checking if the url starts with the blog url
+	let cleanURL = url.href
+		.replace(url.host, "")
+		.replace(/http(s)?:(\/){1,3}/gi, "")
+		.replace(/^\//, "");
+	cleanURL =
+    cleanURL.trim().length === 0 ? "./" : decodeURI(cleanURL).toLowerCase();
+	const blogURL = document.querySelector("meta[name=\"site_url\"]").content;
+	const part = `${blogURL
+		.split("/")
+		.filter((part) => part.length > 0)
+		.pop()}/`
+		.toLowerCase();
 
-    /** get last part of the url, like wiki in 127.0.0.1:8000/wiki/ */
-    cleanURL = cleanURL.replace(part.replace(/^\//, ""), "");
+	/** get last part of the url, like wiki in 127.0.0.1:8000/wiki/ */
+	cleanURL = cleanURL.replace(part.replace(/^\//i, ""), "").toLowerCase().replace(/\/$/, "");
+	if (cleanURL.length === 0) {
+		cleanURL = "./";
+	}
 
-    if (!history.includes(cleanURL.replace(/\/$/, "")) && cleanURL !== "./") {
-        fetch(`${blogURL}/search/all_files.json`)
-            .then((response) => response.json())
-            .then((json) => {
-                json.forEach((doc) => {
-                    const docURL = decodeURI(doc.url).toLowerCase();
-                    if (docURL === cleanURL) {
-                        history.push(cleanURL.replace(/\/$/, ""));
-                    }
-                });
-                history = [...new Set(history)];
-                if (!history.includes(cleanURL.replace(/\/$/, "")) && cleanURL !== "./") {
-                    const newItem = document.createElement("div");
-                    newItem.innerHTML = title;
-                    newItem.classList.add("not_found");
-                    newItem.setAttribute("href", ref);
-                    try {
-                        url.parentNode.replaceChild(newItem, url);
-                    }
-                    catch (error) {
-                        console.log(error);
-                    }
-                }
-            })
-            .catch((error) => {
-                console.log(error);
-            });
-    }
-    return history;
+	if (!history.includes(cleanURL.replace(/\/$/, "")) && cleanURL !== "./") {
+		fetch(`${blogURL}/search/all_files.json`)
+			.then((response) => response.json())
+			.then((json) => {
+				json.forEach((doc) => {
+					const docURL = decodeURI(doc.url).toLowerCase().replace(/\/$/, "");
+					if (docURL === cleanURL.replace(".md", "")) {
+						history.push(cleanURL.replace(/\/$/, ""));
+					}
+				});
+				history = [...new Set(history)];
+				if (
+					!history.includes(cleanURL.replace(/\/$/, "")) &&
+					cleanURL !== "./"
+				) {
+					const newItem = document.createElement("div");
+					newItem.innerHTML = title;
+					newItem.classList.add("not_found");
+					newItem.setAttribute("href", ref);
+					console.warn("Link not found:", {
+						ref,
+						title,
+						url,
+					});
+					try {
+						url.parentNode.replaceChild(newItem, url);
+					} catch (error) {
+						console.error(error);
+					}
+				}
+			})
+			.catch((error) => {
+				console.error(error);
+			});
+	}
+	return history;
 }
 
 let history = [];
 const ht = document.querySelectorAll(
-  "article:not(.md-post) a:not(img, .headerlink)"
+	"article:not(.md-post) a:not(img, .headerlink)"
 );
 for (const anchor of ht) {
-    if (
-        !anchor.getElementsByTagName("img").length > 0 &&
-        !anchor.getElementsByTagName("svg").length > 0 &&
-        !anchor.href.includes("#") &&
-        anchor.hostname === window.location.hostname
-    ) {
-        var link = parseURL(anchor, 0);
-        history = checkIfInternalLinksExists(link.ref, link.title, anchor, history);
-    }
+	if (
+		!anchor.getElementsByTagName("img").length > 0 &&
+    !anchor.getElementsByTagName("svg").length > 0 &&
+    !anchor.href.includes("#") &&
+    anchor.hostname === window.location.hostname
+	) {
+		const linkNotImage = parseURL(anchor, 0);
+		history = checkIfInternalLinksExists(linkNotImage.ref, linkNotImage.title, anchor, history);
+	}
 }
 
 for (const image of document.querySelectorAll("img")) {
-  if (image.hostname === window.location.hostname) {
-    var link = parseURL(image, 1);
-    history = checkIfInternalLinksExists(link.ref, link.title, image, history);
-  }
-}
\ No newline at end of file
+	if (image.hostname === window.location.hostname) {
+		const linkImage = parseURL(image, 1);
+		history = checkIfInternalLinksExists(linkImage.ref, linkImage.title, image, history);
+	}
+}