Download websites that use Combahton FlowShield

About Combahton FlowShield

Denial of service filtering is the rare technology whose job is to be invisible when it is working. Scrubbing happens upstream of the origin, inside the network path, and on a quiet day nothing about a page reveals that anything is filtering traffic at all. Detecting it is inferential from the start.

Combahton FlowShield is recorded as a Proprietary Security product from Combahton. Our record is sparse: no release year, no implementation language, no version strings and no country breakdown. As of October 2026 we detect the service on 18 sites, which counts hosts where the filtering left visible evidence rather than customers who are paying for protection.

The selection effect matters more here than the total does. Mitigation of this kind is usually bought by a hosting company or a network operator and inherited by every customer sitting behind it, so the domains on the list are grouped by who their provider is rather than by any decision a site owner ever made. Reading the row as a set of buyers would overstate what it shows. Reading it as a map of which sites sit behind one operator's filtering is what it genuinely supports.

Building that map is what checking domains one at a time cannot do. A lookup tells you what stands in front of a single domain today, which is useful when you already know which domain you care about. The list makes the structural questions askable: which networks an operator protects, how concentrated a national hosting market is around a small number of scrubbing providers, and which unrelated businesses would go dark together if one provider had a bad day. Anyone working with the row should carry the undercount along with it, because filtering that never announces itself is filtering we never count, and a provider that hides its presence well will always look smaller in a scan than it is on the wire.