Most of these providers you listed have many issues, more expensive and do a terrible job protecting web sites.
For websites, like the Internet Archive, you do not need a layer 3/4 mitigation only provider. CloudFlare, Incapsula, Sucuri and others do that very well (I know from experience by working with them).
Most of these providers you listed have many issues, more expensive and do a terrible job protecting web sites.
For websites, like the Internet Archive, you do not need a layer 3/4 mitigation only provider. CloudFlare, Incapsula, Sucuri and others do that very well (I know from experience by working with them).