I think my ips 209.51.196.243, 209.51.196.252 are blacklisted as it is returning no JSON response when queried via twitter rest api.
I wrote a php script to query the api every two minutes via cron job.
The script was running correctly until before 3 hrs. It had been running periodically from past four days.
Please unblock my ip and inform me on the api request frequency limit.
Http response code is 0.