404. That’s an error.

The requested URL /translate_c?depth=1&langpair=en%7Cde&rurl=translate.google.com&sp=nmt4&u=https://www.scientificamerican.com/article/what-is-synesthesia/&usg=ALkJrhhkyi_v4absdrSvdG3POpVVHAjObw was not found on this server. That’s all we know.