Hi, my site skyerciyes.com cannot be reached from Turkey. I can reach it only using VPN (from other countries).
PING skyerciyes.com (104.31.86.41): 56 data bytes
Request timeout for icmp_seq 0
I heard stories about Turkish government banned new Cloudflare DNS service, can this be the reason? What do you think I should do?
Your ping results aren’t due to DNS. You can try a different resolver, but that doesn’t seem to be the problem, as your site resolves to an IP address.
More than likely, something is blocking that IP address. Possibly your ISP.
Can you try a traceroute instead?
i can ping my dns
i can ping this
but i can’t ping shah.poker or chartjs.org or newfolder.xyz
but i can open and ping briggsoft.com this site supported by cloudflare but i can open this
104.23.***.***
i can ping just this reng ip for cloudflare other reng is timeout
just 104.23 is responding for my ISP My ISP is Superonline
Router: Kartal
Command: traceroute 104.31.86.41 no-resolve
traceroute to 104.31.86.41 (104.31.86.41), 30 hops max, 40 byte packets
1 213.14.125.81 2.045 ms 1.456 ms 1.365 ms
2 10.38.209.18 1.926 ms 1.692 ms 10.40.141.18 11.905 ms
MPLS Label=794704 CoS=0 TTL=1 S=1
3 5.23.0.37 2.326 ms 1.882 ms 2.917 ms
4 195.219.156.21 38.835 ms 35.845 ms 39.199 ms
MPLS Label=483044 CoS=0 TTL=1 S=1
5 195.219.156.130 36.211 ms 38.604 ms 35.522 ms
6 195.219.148.122 41.016 ms 39.412 ms 37.737 ms
7 104.31.86.41 39.545 ms 41.431 ms 39.520 ms
Router: Kartal
Command: show route protocol bgp 104.31.86.41 terse
inet.0: 852781 destinations, 1705560 routes (834841 active, 10 holddown, 35883 hidden)
+ = Active Route, - = Last Active, * = Both
A V Destination P Prf Metric 1 Metric 2 Next hop AS path
* ? 104.31.80.0/20 B 170 135 6453 13335 I
unverified >213.14.125.81
213.14.125.85
? B 170 135 6453 13335 I
unverified >213.14.125.81
213.14.125.85
{master}
Ask your ISP if there are any known local issues. Cloudflare IPs are generally reachable from their network. Next AS in path is TATA Communications (AS6453) and they are directly peering with CF. In Istanbul I guess. So BGP is fine as well.
Not saying that it couldn’t be blocked on your ADSL/VDSL or any other kind of end customer connection or on DNS level. Who knows… 
The problem only occurs when connected via Turkcell mobile and Turkcell Fiber users.
As you can see I used their looking glass. I expect that they are using the same backbone for all customers. Plus that @shah.poker.cloud reported a similar problem.
There are currently no issues wiithin the Cloudflare network in Turkey. Probably some partial issues in Turkcell’s network, idk.
Run a traceroute to your domain.
Windows:
tracert -d yourdomain.com
Linux/MAC
traceroute yourdomain.com
my turkcell mobile is ok but my fiber my internet can’t ping any website cloudflare supported
Have you tried the App on the iPhone?
Also your government is known for trying to control everything so that’s a possibility that they are blocking it.
First of all, I understand that this problem has nothing to do with Cloudflare.
Here’s my guess: After Cloudflare released 1.1.1.1 thing, since it lets people browse freely in Turkey, Turkish government took a hasty action to ban it. They released ISP’s an order to "stop the traffic through this service, and since it is a Cloudflare service, and Turkcell got it all wrong, and stopped traffic everywhere related to Cloudflare, not just the DNS.
I think all we need to do is to tweet, call, and somehow let know Turkcell that they should correct this.
1.1.1.1 has been released last year. 
The current issues you guys are reporting seems to me like a partial one within their network. Either an outage or they messed with their configuration.
Cloudflare IPs are reachable through their looking glass. Sure, it could be intended though.
I got the problem in last two days too… sometimes up and most of the time can be reached. Anyone can help me?