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Status codeReason phraseAdditional comments
400Bad RequestYour request was malformed, most likely because of invalid routing parameters; see the response body for human-readable details
407Proxy Authentication RequiredYour login email address, Massive API token, or both were incorrect
452Disallowed ContentThe protocol, port, or content that you requested conflicts with Massive’s content policy; see the Link header for the entire policy
500Internal server errorSomething went wrong on the serverside
502Bad gatewayMassive was unable to find an appropriate node
503Service UnavailableMassive was unable to satisfy the geotargeting specifications or other elements of your request; or Massive network experiences high demand
521No Upstream Proxy AvailableMassive does not have sufficient capacity to handle requests for the specified geographic location or ASN. This may occur when targeting regions with limited or no node availability. Try relaxing geographic constraints