HTML URL kódolás forrásának megtekintése

== URL kódolás ==
A böngészők az oldalakat a kiszolgálótót URL segítségével kérik. Az URL-eket csak akkor lehet elküldeni az interneten keresztül, ha csak ASCII karaktereket tartalmaznak. Mivel az URL-címek gyakran olyan karaktereket is tartalmaznak, amelyek kívül esnek az ASCII készleten, az URL-eket át kell alakítani. Az URL kódolás átalakítja az URL címeket ASCII formátumra. Az URL kódolás kicseréli az ASCII-ben nem értelmezhető karektereket százalékjelre, majd két hexadecimális számjegyre, mely értéke a karakter ISO-8859-1 kódlap szerinti értéke. Az URL nem tartalmazhat szóközt, ezt plusz jelre cseréli.

JavaScriptben, PHPben, ASPben vannak olyan funkciók amelyeket kezelik az URL-kódolású karakterláncokat.

Ezek JavaScriptnen az encodeURI(), PHPben a rawurlencode(), ASPben a Server.URLEncode() függvény.
{| class="wikitable"
!ASCII karakter
!URL kódolás
|-
|NUL (null character)
|%00
|-
|SOH (start of header)
|%01
|-
|STX (start of text)
|%02
|-
|ETX (end of text)
|%03
|-
|EOT (end of transmission)
|%04
|-
|ENQ (enquiry)
|%05
|-
|ACK (acknowledge)
|%06
|-
|BEL (bell (ring))
|%07
|-
|BS (backspace)
|%08
|-
|HT (horizontal tab)
|%09
|-
|LF (line feed)
|%0A
|-
|VT (vertical tab)
|%0B
|-
|FF (form feed)
|%0C
|-
|CR (carriage return)
|%0D
|-
|SO (shift out)
|%0E
|-
|SI (shift in)
|%0F
|-
|DLE (data link escape)
|%10
|-
|DC1 (device control 1)
|%11
|-
|DC2 (device control 2)
|%12
|-
|DC3 (device control 3)
|%13
|-
|DC4 (device control 4)
|%14
|-
|NAK (negative acknowledge)
|%15
|-
|SYN (synchronize)
|%16
|-
|ETB (end transmission block)
|%17
|-
|CAN (cancel)
|%18
|-
|EM (end of medium)
|%19
|-
|SUB (substitute)
|%1A
|-
|ESC (escape)
|%1B
|-
|FS (file separator)
|%1C
|-
|GS (group separator)
|%1D
|-
|RS (record separator)
|%1E
|-
|US (unit separator)
|%1F
|}
{| class="wikitable"
|Space
|%20
|-
|!
|%21
|-
|"
|%22
|-
|#
|%23
|-
|$
|%24
|-
|%
|%25
|-
|&
|%26
|-
|'
|%27
|-
|(
|%28
|-
|)
|%29
|-
|*
|%2A
|-
| +
|%2B
|-
|,
|%2C
|-
| -
|%2D
|-
|.
|%2E
|-
|/
|%2F
|-
|
|%30
|-
|1
|%31
|-
|2
|%32
|-
|3
|%33
|-
|4
|%34
|-
|5
|%35
|-
|6
|%36
|-
|7
|%37
|-
|8
|%38
|-
|9
|%39
|-
|:
|%3A
|-
|;
|%3B
|-
|<
|%3C
|-
|=
|%3D
|-
|>
|%3E
|-
|?
|%3F
|-
|@
|%40
|-
|A
|%41
|-
|B
|%42
|-
|C
|%43
|-
|D
|%44
|-
|E
|%45
|-
|F
|%46
|-
|G
|%47
|-
|H
|%48
|-
|I
|%49
|-
|J
|%4A
|-
|K
|%4B
|-
|L
|%4C
|-
|M
|%4D
|-
|N
|%4E
|-
|O
|%4F
|-
|P
|%50
|-
|Q
|%51
|-
|R
|%52
|-
|S
|%53
|-
|T
|%54
|-
|U
|%55
|-
|V
|%56
|-
|W
|%57
|-
|X
|%58
|-
|Y
|%59
|-
|Z
|%5A
|-
|[
|%5B
|-
|\
|%5C
|-
|]
|%5D
|-
|^
|%5E
|-
|_
|%5F
|-
|`
|%60
|-
|a
|%61
|-
|b
|%62
|-
|c
|%63
|-
|d
|%64
|-
|e
|%65
|-
|f
|%66
|-
|g
|%67
|-
|h
|%68
|-
|i
|%69
|-
|j
|%6A
|-
|k
|%6B
|-
|l
|%6C
|-
|m
|%6D
|-
|n
|%6E
|-
|o
|%6F
|-
|p
|%70
|-
|q
|%71
|-
|r
|%72
|-
|s
|%73
|-
|t
|%74
|-
|u
|%75
|-
|v
|%76
|-
|w
|%77
|-
|x
|%78
|-
|y
|%79
|-
|z
|%7A
|-
|{
|%7B
|-
|<nowiki>|</nowiki>
|%7C
|-
| }
|%7D
|-
|~
|%7E
|-
|
|%7F
|-
|€
|%80
|-
|
|%81
|-
|‚
|%82
|-
|ƒ
|%83
|-
|„
|%84
|-
|…
|%85
|-
|†
|%86
|-
|‡
|%87
|-
|ˆ
|%88
|-
|‰
|%89
|-
|Š
|%8A
|-
|‹
|%8B
|-
|Œ
|%8C
|-
|
|%8D
|-
|Ž
|%8E
|-
|
|%8F
|-
|
|%90
|-
|‘
|%91
|-
|’
|%92
|-
|“
|%93
|-
|”
|%94
|-
|•
|%95
|-
|–
|%96
|-
|—
|%97
|-
|˜
|%98
|-
|™
|%99
|-
|š
|%9A
|-
|›
|%9B
|-
|œ
|%9C
|-
|
|%9D
|-
|ž
|%9E
|-
|Ÿ
|%9F
|-
|
|%A0
|-
|¡
|%A1
|-
|¢
|%A2
|-
|£
|%A3
|-
|
|%A4
|-
|¥
|%A5
|-
|<nowiki>|</nowiki>
|%A6
|-
|§
|%A7
|-
|¨
|%A8
|-
|©
|%A9
|-
|ª
|%AA
|-
|«
|%AB
|-
|¬
|%AC
|-
|¯
|%AD
|-
|®
|%AE
|-
|¯
|%AF
|-
|°
|%B0
|-
|±
|%B1
|-
|²
|%B2
|-
|³
|%B3
|-
|´
|%B4
|-
|µ
|%B5
|-
|¶
|%B6
|-
|·
|%B7
|-
|¸
|%B8
|-
|¹
|%B9
|-
|º
|%BA
|-
|»
|%BB
|-
|¼
|%BC
|-
|½
|%BD
|-
|¾
|%BE
|-
|¿
|%BF
|-
|À
|%C0
|-
|Á
|%C1
|-
|Â
|%C2
|-
|Ã
|%C3
|-
|Ä
|%C4
|-
|Å
|%C5
|-
|Æ
|%C6
|-
|Ç
|%C7
|-
|È
|%C8
|-
|É
|%C9
|-
|Ê
|%CA
|-
|Ë
|%CB
|-
|Ì
|%CC
|-
|Í
|%CD
|-
|Î
|%CE
|-
|Ï
|%CF
|-
|Ð
|%D0
|-
|Ñ
|%D1
|-
|Ò
|%D2
|-
|Ó
|%D3
|-
|Ô
|%D4
|-
|Õ
|%D5
|-
|Ö
|%D6
|-
|
|%D7
|-
|Ø
|%D8
|-
|Ù
|%D9
|-
|Ú
|%DA
|-
|Û
|%DB
|-
|Ü
|%DC
|-
|Ý
|%DD
|-
|Þ
|%DE
|-
|ß
|%DF
|-
|à
|%E0
|-
|á
|%E1
|-
|â
|%E2
|-
|ã
|%E3
|-
|ä
|%E4
|-
|å
|%E5
|-
|æ
|%E6
|-
|ç
|%E7
|-
|è
|%E8
|-
|é
|%E9
|-
|ê
|%EA
|-
|ë
|%EB
|-
|ì
|%EC
|-
|í
|%ED
|-
|î
|%EE
|-
|ï
|%EF
|-
|ð
|%F0
|-
|ñ
|%F1
|-
|ò
|%F2
|-
|ó
|%F3
|-
|ô
|%F4
|-
|õ
|%F5
|-
|ö
|%F6
|-
|÷
|%F7
|-
|ø
|%F8
|-
|ù
|%F9
|-
|ú
|%FA
|-
|û
|%FB
|-
|ü
|%FC
|-
|ý
|%FD
|-
|þ
|%FE
|-
|ÿ
|%FF
|}