Xfinity 默默地屏蔽了许多新域名。
我们为一次发布活动搭建了一个网站，但使用Xfinity路由器的用户无法访问。我们之所以发现这个问题，是因为家里也有一台Xfinity路由器。网站所有者并没有收到任何通知。
Xfinity的高级安全功能依赖于第三方域名信誉列表，并在网关处进行屏蔽。我们发现一个名为SURBL的黑名单将我们列入了黑名单。具体是什么原因导致的我们并不清楚。自那以后，我在10多个无关网站上也遇到了同样的屏蔽，并告知了网站所有者。现在我在这里与大家分享这个信息。
如何检查你是否也遇到此问题：
https://spa.xfinity.com/check_url_status
如果被屏蔽，请查看上游列表： https://mxtoolbox.com/blacklists.aspx
在 https://spa.xfinity.com/report 上报告此问题，并不断拨打他们的电话（审核大约需要3个工作日），同时也要将自己从上游列表中移除。
我希望帮助大家传播这个信息，以减少在发布产品时遭遇此问题的人数。
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We built a site for a launch and it was unreachable for anyone on an Xfinity router. We only found out because we have an Xfinity router at home. There's no notice to the site owner.<p>Xfinity's Advanced Security draws on third-party domain reputation lists and blocks at the gateway. We found out a blacklist called SURBL had flagged us. Not sure exactly what tripped it. Since then I've hit the same block on 10+ unrelated sites and told the site owner. Now sharing with everyone here.<p>How to check whether it's happening to you:<p>https://spa.xfinity.com/check_url_status
If blocked, look for the upstream list: https://mxtoolbox.com/blacklists.aspx
Report at https://spa.xfinity.com/report and call them nonstop (reviews take ~3 business days) and get off the upstream list too.<p>Trying to help get this out there so it happens to less people who are launching products.