I can only think of three possible reasons:
1.) DNS problem: pcedaisakusen.net is resolved to the wrong IP (the correct one is 85.25.62.71). You can check that by using the nslookup command.
2.) Filter problem: Somebody blocks the site (provider, company firewall, etc.). You can try using a proxy server to circumvent that.
3.) Obey problem: There's an automatic obeyness check with every request sent to the page. If you fail it, no content will be delivered. You should obey more to be sure to pass this test.