WARNING: Looks like the parent servers do not have information for your TLD when asked. This is ok but can be confusing
The parent nameserver ns92.nic.tr is not sending out GLUE for every nameservers listed, meaning he is sending out your nameservers host names without sending the A records of those nameservers. It's ok but you have to know that this will require an extra A lookup that can delay a little the connections to your site. This happens a lot if you have nameservers on different TLD (domain.com for example with nameserver ns.domain.org.)
NS records got from your nameservers listed at the parent NS are:

ns4.alastyr.com ['77.223.148.98'] [TTL=14400]
ns1.alastyr.com ['5.2.80.11'] [TTL=14400]
ns2.alastyr.com ['5.2.82.11'] [TTL=14400]
ns3.alastyr.com ['188.132.207.107'] [TTL=14400]

The SOA record is:
Primary nameserver: ns1.alastyr.com
Hostmaster E-mail address: serverz.alastyr.com
Serial #: 2016072104
Refresh: 10800
Retry: 3600
Expire: 604800 1 weeks
Default TTL: 10800

Your MX records that were reported by your nameservers are:

10 mx.yandex.net 93.158.134.89 213.180.193.89 87.250.250.89 213.180.204.89 77.88.21.89 (no glue)

[These are all the MX records that I found. If there are some non common MX records at your nameservers you should see them below. ]

Your www.mehmetbarun.com.tr A record is:
www.mehmetbarun.com.tr -> mehmetbarun.com.tr -> [ 185.8.128.211 ]

[Looks like you have CNAME's]

buarada site adresi mehmetbarun.com.tr