This feed does not validate.
In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendations.
<!doctype html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Ой! А такой страницы на сайте уже или ещё нет</title>
<link href="/Css/error404.css" type="text/css" rel="stylesheet"/>
</head>
<body>
<div class="main">
<div class="logo">
<a href="/">
<img src="/Images/404/logo.png" width="148" height="43" alt="MySlo"/>
</a>
<a href="/">перейти на главную</a>
</div>
<div class="cloud"></div>
<div class="content">
<h1>Ой! А такой страницы на сайте уже или ещё нет.</h1>
<p>
<img src="/Images/404/404.png" width="343" height="128" alt="myslo 404"/>
</p>
</div>
<div class="footer">
<p>Пройдитесь по разделам, может там вы найдете то, что искали:</p>
<nav>
<a href="/news">Новости</a>
<a href="/afisha">Афиша</a>
<a href="/club">Блоги</a>
<a href="/city">Город</a>
<a href="/organizations">Справка</a>
<a href="/pressa">Пресса</a>
</nav>
<p>Или воспользуйтесь поиском по сайту:</p>
<div class="search">
<form method="get" action="/Search">
<input class="search_input" type="text" onfocus="if (this.value == 'Поиск...') { this.value = ''; this.style.color = '#000'; };" onblur="if (this.value == '') { this.value = 'Поиск...'; this.style.color = '#9C9C9C'; };" maxlength="50" value="Поиск..." name="search">
<input class="search_submit" type="submit" value="">
</form>
</div>
</div>
</div>
<script>(function(){if (!document.body) return;var js = "window['__CF$cv$params']={r:'884371fdca1920d6',t:'MTcxNTc3OTQzNS42ODIwMDA='};_cpo=document.createElement('script');_cpo.nonce='',_cpo.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js',document.getElementsByTagName('head')[0].appendChild(_cpo);";var _0xh = document.createElement('iframe');_0xh.height = 1;_0xh.width = 1;_0xh.style.position = 'absolute';_0xh.style.top = 0;_0xh.style.left = 0;_0xh.style.border = 'none';_0xh.style.visibility = 'hidden';document.body.appendChild(_0xh);function handler() {var _0xi = _0xh.contentDocument || _0xh.contentWindow.document;if (_0xi) {var _0xj = _0xi.createElement('script');_0xj.innerHTML = js;_0xi.getElementsByTagName('head')[0].appendChild(_0xj);}}if (document.readyState !== 'loading') {handler();} else if (window.addEventListener) {document.addEventListener('DOMContentLoaded', handler);} else {var prev = document.onreadystatechange || function () {};document.onreadystatechange = function (e) {prev(e);if (document.readyState !== 'loading') {document.onreadystatechange = prev;handler();}};}})();</script></body>
</html>