Card Validator | ERROR: Fetching the page failed because the fetcher cannot resolve the address



Can someone please tell me what I’m doing wrong here? The domain is using a CNAME to redirect to a heroku instance. When I put the heroku instance in (, everything works fine…

URL in question:


User-agent: Twitterbot

Meta tags:

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@JustFixNYC">
<meta name="twitter:creator" content="@JustFixNYC">
<meta name="twitter:title" content="Tenant Assistance Directory |">
<meta name="twitter:description" content="Find local community groups and legal services to help with your housing issues. Built by the team at">
<meta name="twitter:url" content="">
<meta name="twitter:image" content="">


I think you are experiencing the same issue I am where Twitter for some reason does not acknowledge all url domains. In your case it’s .nyc, in my case it’s .vote ( I had to use the IP address or purchase another domain that twitter accepts (in my case I had to redirect my company address to point to - my product page just so it would pass Twiitter’s card validator.)