user-agent

User agents SHOULD include this field with requests

SHOULD — this word, or the adjective "RECOMMENDED", mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course.

Если очень надо (зачем???), то впиши строку "anonymous (U; ru)" и всё.

[X] Send browser identification

На многих детекторах сработает unknown browser или как-то иначе.