sending a first message to a server, wherein the first message comprises a target domain name and first indication information, the first indication information indicates whether first verification information is stored in a client device, and the first verification information is verification information generated based on a plurality of domain names and owner information of the plurality of domain names, wherein the first verification information verifies the owner information of the plurality of domain names, and the plurality of domain names comprise the comprises the target domain name;

receiving a second message sent by the server based on the first message, wherein the second message indicates target first verification information, and the target first verification information is used by the client device to verify owner information of the target domain name; and

verifying the owner information of the target domain name based on the second message;

wherein the first verification information is verified by the client device based on second verification information;

wherein the first indication information indicates that the first verification information is stored in the client device, and that a version of the stored first verification in formation is a first version;

wherein the second message comprises target second verification information and a second version of the first verification information, the target second verification information is the second verification information used by the client device to verify the second version of the first verification information, and the second version of the first verification information is the target first verification information; and

wherein verifying the owner information of the target domain name based on the second message comprises: