API: No response


Hello there,

I think I may be having a blacklist problem on the shared IP I am using for my twitter app.
I am using OAuth (V1).
My host server can make external URL requests.
The is a no response from the host server however a curl request from my remote machine successfully executes.
I have been very careful not to breach the API limits (the app utilizes db caching with a minimum of 50% API calls as buffer at any given time).

My hosting is through appfog.com.
(I would have liked to include more information here (eg. traceroutes and CURL > /help/test.json) but I have very limited shell interaction with their CLI.)

Any help is much appreciated!


Our apps “Syncmetrics” (that also hosted on appfog.com) has return “no response” recently when trying to get a request token through API (https://api.twitter.com/oauth/request_token).
Are we breaking any API limits or rules?
Can you guys help me to define what is going on?


Curl request from Apfog servers:

$ curl --verbose “https://api.twitter.com/1/help/test.json

  • About to connect() to api.twitter.com port 443 (#0)
  • Trying… Connection timed out
  • Trying… Connection timed out
  • Trying… Connection timed out
  • couldn’t connect to host
  • Closing connection #0
    curl: (7) couldn’t connect to host



If you’re experiencing this, please provide the IP address you’re requesting from so I can ask for it to be looked into; thanks.


Hi Taylor,

These are the IP’s in question:,,

Thanks very much for your help!


was this resolved?