http://lynx.invisible-island.net/lynx2.8.8/lynx_help/keystrokes/test_display

Quick test for identifying display character set

If you see several letters instead of a single – your promised display charset does not support this character so "7 bit approximation" is in effect. If you see any single letter which is unexpected, you have incorrect Lynx settings.

Press 'o' for Options menu and change "Display character set".
Try again if necessary.

When you are satisfied save your changes in Options menu, thanks.

0x00A9    ©           # COPYRIGHT SIGN

0x00C7    Ç           # LATIN CAPITAL LETTER C WITH CEDILLA

0x00DC    Ü           # LATIN CAPITAL LETTER U WITH DIAERESIS

0x00D1    Ñ           # LATIN CAPITAL LETTER N WITH TILDE

0x0107    ć           # LATIN SMALL LETTER C WITH ACUTE
0x0108    Ĉ           # LATIN CAPITAL LETTER C WITH CIRCUMFLEX
0x010C    Č           # LATIN CAPITAL LETTER C WITH CARON

0x03BB    λ           # GREEK SMALL LETTER LAMDA

0x041B    Л           # CYRILLIC CAPITAL LETTER EL
0x042E    Ю           # CYRILLIC CAPITAL LETTER YU
0x043B    л           # CYRILLIC SMALL LETTER EL
0x044E    ю           # CYRILLIC SMALL LETTER YU

0x2026    …           # HORIZONTAL ELLIPSIS
0x2122    ™           # TRADE MARK SIGN

0x255D    ╝           # BOX DRAWINGS DOUBLE UP AND LEFT
0x255E    ╞           # BOX DRAWINGS VERTICAL SINGLE AND RIGHT DOUBLE

0xFB01    fi           # LATIN SMALL LIGATURE FI

This is only a quick test to see obvious problems.