*.com就不介绍了，一种解决方法就是手动分析链接，使用nslookup得到hosts：
#stack overflow 198.252.206.140 cdn.sstatic.net 190.93.246.58 cdn-careers.sstatic.net 198.252.206.17 careers.*.com 198.252.206.140 *.com 198.252.206.140 www.*.com 198.252.206.140 stackexchange.com 198.252.206.140 www.stackexchange.com 68.232.44.251 static.adzerk.net 203.190.124.28 pixel.quantserve.com 54.243.104.88 stack.imgur.com 54.243.104.88 i.stack.imgur.com 198.144.96.59 scorecardresearch.com 198.144.96.59 b.scorecardresearch.com 184.85.171.120 sb.scorecardresearch.com 209.116.151.162 edge.quantserve.com 198.252.206.21 stackauth.com 199.193.114.165 ssl.mousestats.com 173.194.70.95 ajax.googleapis.com
把这些内容追加到 /etc/hosts 即可，搜索结果中打开 *.com可以秒开，打开 careers.*.com 就无能为力了，会稍微慢一点。