This tool enables you to perform a reverse DNS lookup (or PTR lookup) of an IP address. A PTR record is important, especially for the email server to confirm the legitimacy of the email sender.
Lookup DNS
Add DNS Lookup Widget To Your Website
You can easily add the DNS lookup widget on your website by copying the following HTML code and place it on your web page
Widget
<div style="text-align:center">
<form action="https://www.ipaddressguide.com/dns-lookup" method="post">
<p style="background:#fff;border:1px solid #99A8AE;width:180px;padding:5px 5px 5px 5px;font-size:11px;font-family:'Trebuchet MS',Arial,Sans-serif;">
<a href="https://www.ipaddressguide.com" target="_blank"><img src="https://www.ipaddressguide.com/images/ipaddressguide.png" alt="Reverse DNS Lookup IPv4 Address | IPAddressGuide" border="0" width="120" height="12" /></a><br />
<b>Reverse DNS Lookup</b><br /><br />
<label>IP Address</label><br />
<input type="text" name="ip" value="" style="border:solid 1px #C0C0C0;font-size:9px;width:110px;" /><br />
<input type="submit" value="Lookup" style="width:100px;font-size:10px;margin-top:3px;padding:2px 3px;color:#FFF;background:#8EB50C;border-width:1px;border-style:solid;">
</p>
</form>
</div>
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