В ответ на:
International Web addresses

Some servers may prefer that Opera encodes the address in local character encoding (like latin-1) instead of the recommended UTF-8 encoding.
You enter http://www.example.org/æøå.html
Address in latin-1 http://www.example.org/%E6%F8%E5.html
Address in UTF-8 http://www.example.org/%C3%A6%C3%B8%C3%A5.html

В ответ на:
Referrer logging

Some Web sites make a note of which page you came from, and behave accordingly. Turn referrer logging off if you do not want one site to know which other site you just came from.

Note: Some sites depend on referrer logging to work properly.

В ответ на:
Automatic redirection

Some Web pages automatically redirect you to another page or site. Disable automatic redirection if you would rather stay in control by clicking redirection links.

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