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Ready to check - Nu Html Checker
<!DOCTYPE html> <html lang="en"><head><link href="icon.png" rel="icon"><link href="style.css" rel="stylesheet"><title>Ready to check - Nu Html Checker</title><meta name="viewport" content="width=device-width, initial-scale=1"></head><body><div id="banner"><h1 id="title"><a href="."><span>Nu Html Checker</span></a></h1></div><p class="disclaimer">This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change</p><h2 id="top">Ready to check </h2><form method="get"><fieldset><legend>Checker Input</legend><p class="checkboxes">Show <span class="checkboxgroup"><label title="Display the markup source of the input document." for="showsource"><input type="checkbox" name="showsource" id="showsource" value="yes">source</label><label title="Display an outline of the input document." for="showoutline"><input type="checkbox" name="showoutline" id="showoutline" value="yes">outline</label><label title="Display a report about the textual alternatives for images." for="showimagereport"><input type="checkbox" name="showimagereport" id="showimagereport" value="yes">image report</label></span><input id="show_options" type="button" value="Options…"><span class="extraoptions hidden"><span class="checkboxgroup"><label title="Check the content of all responses, including (non-200) error responses"><input type="checkbox" name="checkerrorpages" id="checkerrorpages" value="yes">check error pages</label></span><label id="user-agent-label" title="Specify the user-agent string to send in the document request">User-Agent <input name="useragent" list="useragents" value="Validator.nu/LV https://validator.w3.org/services"></label><datalist id="useragents"></datalist><label id="accept-language-label" title="Specify the accept-language header to send in the document request">Accept-Language <input id="acceptlanguage" name="acceptlanguage"></label></span></p><div id="inputregion"><label id="inputlabel" for="doc">Document URL:</label><input type="url" name="doc" id="doc" pattern="(?:(?:https?://.+)|(?:data:.+))?" title="Absolute URL (http, https or data only) of the document to be checked." tabindex="0" autofocus="autofocus"></div><p><input value="Check" type="submit" id="submit"></p></fieldset></form><script src="script.js"></script><div id="results"></div><hr><div id="about"><p><a href="about.html">About this checker</a> • <a href="about.html#issues">Report an issue</a> • <span class="version">Version: 25.2.6</span></p></div></body></html>