Site unreachable from specific ISP

I’m having a similar problem about this: Site unreachable from specific mobile provider

My DNS resolved IP is unreachable from my ISP. I’ve tested different locations with the same ISP.
Nslookup test:

nslookup kdu.design
Server:		1.0.0.1
Address:	1.0.0.1#53

Non-authoritative answer:
Name:	kdu.design
Address: 104.21.38.162
Name:	kdu.design
Address: 172.67.136.20

Traceroute tests:

traceroute 104.21.38.162
traceroute to 104.21.38.162 (104.21.38.162), 64 hops max, 52 byte packets
 1  10.0.0.3 (10.0.0.3)  23.659 ms  18.303 ms  20.178 ms
 2  10.17.224.1 (10.17.224.1)  83.841 ms  95.239 ms  307.029 ms
 3  c9064a49.virtua.com.br (201.6.74.73)  87.404 ms  98.074 ms  106.696 ms
 4  c906416e.virtua.com.br (201.6.65.110)  94.936 ms  119.827 ms  92.199 ms
 5  c9064164.virtua.com.br (201.6.65.100)  111.782 ms *  105.637 ms
 6  * * *
 7  * * *
 8  * * *

traceroute 172.67.136.20
traceroute to 172.67.136.20 (172.67.136.20), 64 hops max, 52 byte packets
 1  10.0.0.3 (10.0.0.3)  20.197 ms  19.119 ms  18.311 ms
 2  10.17.224.1 (10.17.224.1)  93.796 ms  104.628 ms  96.266 ms
 3  c9064a49.virtua.com.br (201.6.74.73)  101.659 ms  94.176 ms  89.504 ms
 4  c906416e.virtua.com.br (201.6.65.110)  70.676 ms  99.280 ms  111.163 ms
 5  c9064164.virtua.com.br (201.6.65.100)  113.194 ms  101.444 ms  102.934 ms
 6  * * *
 7  * * *
 8  * * *

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