404. That’s an error.
The requested URL /_/+1/confirm?hl=en&url=https%3A%2F%2Fwpseek.com%2Fhook%2Fms_sites_list_table_query_args%2F&title=ms_sites_list_table_query_args%20%28WordPress%20Filter%20Hook%29
was not found on this server. That’s all we know.