d-thinker homepage seems to be down

[YU_Xinjie]

[0✓][12:07:16] yuxinjie@MAC-OS-X:~/Downloads
$ wget d-thinker.org
--2015-07-02 12:07:22-- http://d-thinker.org/
Resolving d-thinker.org (d-thinker.org)... 124.248.211.170
Connecting to d-thinker.org (d-thinker.org)|124.248.211.170|:80... failed: Network is unreachable.
[1✗][12:07:28] yuxinjie@MAC-OS-X:~/Downloads
$ nslookup d-thinker.org
Server: 10.76.5.59
Address: 10.76.5.59#53

Non-authoritative answer:
Name: d-thinker.org
Address: 124.248.211.170

[0✓][12:08:53] yuxinjie@MAC-OS-X:~/Downloads
$ ping 124.248.211.170
PING 124.248.211.170 (124.248.211.170): 56 data bytes
64 bytes from 124.248.211.170: icmp_seq=0 ttl=50 time=40.967 ms
64 bytes from 124.248.211.170: icmp_seq=1 ttl=50 time=40.814 ms
^C
--- 124.248.211.170 ping statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 40.814/40.891/40.967/0.076 ms