I would like to use client-side Javascript to perform a DNS lookup (hostname to IP address) as seen from the client's computer. Is that possible?...
My server threw this today, which is a Node.js error I've never seen before:  Error: getaddrinfo EAI_AGAIN my-store.myshopify.com:443     at Object.exports._errnoException (util.js:870:11)     at errnoException (dns.js:32:15)     at GetAddrInfo...
How i can get the domain name example.com from the set of possible subdomains sub1.example.com sub2.example.com sub3.example.com  using javascript ...?...
Greetings all,  I would very much like to determine the IP# of a domain from client script.   It's for use in a testing application to determine whether or not a certain domain is set to a QA address as opposed to the address live on the . The te...
I had a search and found lot's of similar regex examples, but not quite what I need.  I want to be able to pass in the following urls and return the results:   www.google.com returns google.com sub.domains.are.cool.google.com returns google.com d...
I have a really weird problem, I use AJAX to send an email from my html page, which links to a PHP page I have within the SAME website. The AJAX request works fine when I enter the website in IP mode 1xx.xx.xxx.xxx:8080/mywebsite only when I use a DN...
What's the difference between using  if (document.domain.toLowerCase().indexOf("domainName") != -1)   and  if(window.location.href.match(/:\/\/(.[^/]+)/)[1].toLowerCase().indexOf("domainName") != -1)   and  if(window.location.host...
What's the state of the art in DNS resolver libraries?  I am particularly interested in full (not stub) resolvers that support any or all of: making multiple queries in one request packet, complete DNSSEC validation, returning detailed informatio...
I need to change the domain of the document and then set it back again to the original value.  It looks something like this [the page is on domain base.site.com]:  function execute () { document.domain = "site.com";  // Access an object that...

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