SEO Impact calculation or prioritization

Name	Rule type	Description
Missing or empty page title	Title	Your page does not have any content in the page title. Search engines look for the title tag to better understand the main topic of the page.
Page title too short or too long	Title	Short titles may not accurately describe your page and may result in fewer visitors to your page. Titles longer than 70 characters may be trimmed in search engine results.
Duplicate page title	Title	The page has the same page title as another page on your domain. Search engines may consider pages with the same title tags to be duplicate content.
Missing or empty H1 tags	Header Tags	Your page does not have any Heading 1 tags or your Heading 1 tags are empty. Search engines may use heading tags to determine the main topic of your page.
Maximum number of H1 tags	Header Tags	Your page exceeds the maximum threshold for number of Heading 1 tags. Too many Heading 1 tags may dilute the importance of all Heading 1 tags on your page.
Maximum number of H2 tags	Header Tags	Your page exceeds the maximum threshold for number of Heading 2 tags. Too many Heading 2 tags may dilute the importance of all Heading 2 tags on your page.
Missing or empty H2 tags	Header Tags	Your page does not have any Heading 2 tags or your Heading 2 tags are empty. Search engines may use heading tags to determine the main topic of your page.
Missing or empty meta description tag	Meta Description Tags	Your page does not have a meta description tag or the tag is empty. Meta descriptions provide a concise explanation of the contents of a webpage. Search engines use meta descriptions to display preview snippets for a given page to users.
Duplicate meta description tag	Meta Description Tags	The page has the same meta description tag as another page on your domain. Search engines may consider pages with the same description tags to be duplicate content.
Image tags without alt attribute	Image Tags	Images on the page do not have any alternate text. Search engine crawlers use alternate text to understand what images on your page are about. Search engines understanding your images can help your page rank in universal results and on image searches.
Image tags without height & width attributes	Image Tags	Images on the page do not have height and width attributes specified in the image tag. Search engines consider performance when ranking pages, and height and width attributes can improve page speed.
Missing meta keyword tag	Secondary Content Elements	Your page does not have a keyword meta tag. Some search engines may use this tag to help determine what your page is about.
Page URL is too long	Page URL	The URL pointing to the page is too long. Page URLs that are too long may be confusing to users and not accurately describe the page.
Poor text to code ratio	Secondary Content Elements	You have too little or too much text compared to the code on your page. A poor text-to-code ratio can affect the readability of your site by search engine crawlers.
Page size too large	Secondary Content Elements	The content on your page (text, images, videos, etc.) is too large. Large page sizes may affect the ability of search engine crawlers to index your site.
Duplicate page content	Secondary Content Elements	The content on this page matches the content on another page. Duplicate content can make it difficult for search engines to know which version of the page to include in their indices, to direct authority and link juice to, and to rank on a SERP.
Invalid Canonical URL	Secondary Content Elements	The Canonical URL set for the page is formatted incorrectly. Canonical URLs help search engines apply page authority and link juice to the proper pages within your domain.
No Html4 or Xhtml1 validation	Secondary Content Elements	Notifies whether or not your page has HTML or XHTML validation. This rule serves as a notification and does not affect your SEO.
Canonical URL not in sitemap	Secondary Content Elements	Notifies you whether or not your Canonical URL is in your sitemap. This rule serves as a notification and does not affect your SEO.
Noindex	Indexation Directives	Notifies you whether or not the page has a noindex tag. Pages with a noindex tag will be ignored by search engine crawlers. This rule serves as a notification.
Nofollow	Indexation Directives	Notifies you whether or not the page has links with nofollow tags. This rule serves as a notification and does not directly affect your page's SEO, but rather affects the SEO of pages that are being linked to from the page. Links with nofollow tags do not provide authority or "link juice" to the linked page.
Noarchive	Indexation Directives	Notifies you whether or not the page has a noarchive tag. This rule serves as a notification and does not affect your SEO.
Nosnippet	Indexation Directives	Notifies you whether or not the page has a nosnippet tag. Pages with a nosnippet tag will not show a description under the link in a SERP. This rule serves as a notification.
Noodp	Indexation Directives	Notifies you whether or not the page has a noodp tag. This rule serves as a notification.
Notranslate	Indexation Directives	Notifies you whether or not the page has a notranslate tag. This rule serves as a notification and does not affect your SEO.
Noimageindex	Indexation Directives	Notifies you whether or not the page has a noimageindex tag. This rule serves as a notification.
Unavailable after date in the past	Indexation Directives	Notifies you whether or not the page has a unavailable_after:[date] tag. This specifies a time and date that search engine crawlers should no longer index the page. This rule serves as a notification.
Disallowed by robots.txt	Indexation Directives	Notifies you whether the page is disallowed on the robots.txt page. This rule serves as a notification.
4xx Errors	Page Errors	The page has a 4xx error. These errors may limit a search engine's ability to crawl all pages on your site and may indicate a low-quality domain.
5xx Errors	Page Errors	The page has a 5xx error. Search engines use frequency of page errors to help determine the quality of a site.
3xx Redirects	Page Errors	The page has a 3xx redirect. The type of redirect, either 301 or 302, have different affects on "link juice" from the page.
Slow Response Time	Page Speed	The page has a load time longer than the maximum specified threshold. Search engines use response time to help determine the quality of a page.
Too Many Redirects	Page Speed	The page has more redirects than the maximum specified threshold. Unnecessary redirects may increase response time of a page. Search engines use response time to help determine the quality of a page.
Broken internal links	Internal Links	Links within the page do not lead to valid pages. Broken links can affect a search engine's ability to properly index pages on your domain.
Too few inbound internal links	Internal Links	The page has less than 5 links pointing to the page.
Too many outbound internal links	Internal Links	The number of outbound links on the page exceeds the maximum specified threshold. Too many outbound links can overwhelm a visitor and lead to a bad user experience.
Missing open graph title tag	Object Tags	The page is missing the title attribute in the open graph tag. Open graph tags influence the way the page appears on social media. Improved performance on social media may drive increased traffic.
Missing open graph type tag	Object Tags	The page is missing the type attribute in the open graph tag, which indicates the type of the object (such as video). Open graph tags influence the way the page appears and performs on social media. Improved performance on social media may drive increased traffic.
Missing open graph URL tag	Object Tags	The page is missing the URL attribute in the open graph tag. Open graph tags influence the way the page appears and performs on social media. Improved performance on social media may drive increased traffic.
Missing open graph image tag	Object Tags	The page is missing the image attribute in the open graph tag. Open graph tags influence the way the page appears on social media. Improved performance on social media may drive increased traffic.
Missing open graph description tag	Object Tags	The page is missing the description attribute in the open graph tag. Open graph tags influence the way the page appears on social media. Improved performance on social media may drive increased traffic.
Missing open graph site name tag	Site and Admin Tags	The page is missing the site name attribute in the open graph tag, which lists the parent domain for the page. Open graph tags influence the way the page appears on social media. Improved performance on social media may drive increased traffic.
Missing Facebook admin and App ID tag	Site and Admin Tags	The page is missing the admin attribute and App ID attribute in the open graph tag. These attributes influence how your page is accessed on social media. Improved performance on social media may drive increased traffic.

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HTML Quick List, Guide, Quick HTML Code List

<!-- ••• -->
<!DOCTYPE>
<A> Anchorv	HREF: URL you are linking to
	NAME: name a section of the page
	TARGET = "_blank" | "_parent" | "_self" | "_top" | window name which window the document should go in
	TITLE: suggested title for the document to be opened
	onClick: script to run when the user clicks on this anchor
	onMouseOver: when the mouse is over the link
	onMouseOut: when the mouse is no longer over the link
	ACCESSKEY
<ADDRESS>
<APP>
<APPLET>	CODE: the applet to run
	CODEBASE: path to the applet class
	WIDTH: width of the applet
	HEIGHT: height of the applet
	ALIGN = LEFT | RIGHT | TOP | MIDDLE | BOTTOM | BASELINE alignment of applet to surrounding text
	VSPACE: vertical space between applet and surrounding text
	HSPACE: horizontal space between applet and surrounding text
	BORDER: empty space surrounding the applet
	NAME: name of applet for reference by other applets
	ARCHIVE: a compressed collection of applet components
	MAYSCRIPT: If Java can use JavaScript
<AREA>	HREF: URL you are linking to
	ALT: alternate text if the image isn't displayed
	SHAPE = RECT | CIRCLE | POLY | DEFAULT what shape is this area?
	COORDS: coordinates for the link area shape
	TITLE: Short description of the area
	TARGET: what frame to go to
	NOHREF: this area is not a link
	onClick: script action when the user clicks this area
	onMouseOver
	onMouseOut
<B> Bold
<BASE> Base Addressv	HREF: default address for hypertext links
	v = "_blank" | "_parent" | "_self" | "_top" | frame name default window for linked documents
<BASEFONT>	v
	COLOR
	FACE
<BGSOUND>	SRC: URL of the sound
	LOOP = INFINITE | number of loops how many times to play the sound
<BIG>
<BLINK>
<BLOCKQUOTE> Block Quote
<BODY>	BGCOLOR: background color of the page
	BACKGROUND: background picture for the page
	TEXT: color of the text on the page
	LINK: color of links that haven't been followed yet
	VLINK: color of links that have been followed
	ALINK: color of links while you are clicking on them
	BGPROPERTIES = FIXED if the background image should not scroll
	TOPMARGIN: size of top and bottom margins
	LEFTMARGIN: size of left and right margins
	MARGINHEIGHT: size of top and bottom margins
	MARGINWIDTH: size of left and right margins
	onLoad: Script to run once the page is fully loaded
	onUnload
	onFocus
	onBlur
	MS FrontPage extension
	SCROLL = YES | NO If the document should have a scroll bar
<BR> Line Break	CLEAR = LEFT | RIGHT | ALL | BOTH go past a picture or other object
<BUTTON>	TYPE = BUTTON | SUBMIT | RESET what type of button is this
	onClick: script to run when the user clicks here
	name of this button element
	VALUE: the value sent with the form
	DISABLED: disable this button
	ACCESSKEY: shortcut key for this button
	TABINDEX: tab order
<CAPTION>	ALIGN = TOP | BOTTOM | LEFT | RIGHT alignment of caption to table
	VALIGN = TOP | BOTTOM if caption should be above or below table
<CENTER>
<CITE> Citation
<CODE>
<COL> Column	SPAN: how many columns this affects
	ALIGN = LEFT | CENTER | RIGHT | JUSTIFY horizontal alignment
	WIDTH: width of the column
	BGCOLOR: background color of the column
<COLGROUP> Column Group	SPAN: how many columns this affects
	ALIGN: alignment of cell contents
	WIDTH: Width of the column group
<COMMENT>
<DD> Definition Description
<DEL> Deleted
<DFN> Definition
<DIR> Directory List
<DIV>	ALIGN = LEFT | CENTER | RIGHT | JUSTIFY text alignment
<DL> Definition List	COMPACT: take up less space
<DT> Definition Term
<EM> Emphasis
<EMBED>	SRC: URL of resource to be embedded
	WIDTH: width of area in which to show resource
	HEIGHT: height of area in which to show resource
	ALIGN = ABSBOTTOM | ABSMIDDLE | MIDDLE | TEXTTOP | RIGHT | LEFT | BASELINE | CENTER | BOTTOM | TOP how text should flow around the picture
	NAME: name of the embedded object
	PLUGINSPAGE: where to get the plugin software
	PLUGINURL: where to get the JAR archive for automatic installation
	HIDDEN = FALSE | TRUE if the object is visible or not
	HREF: make this object a link
	TARGET: frame to link to
	AUTOSTART = TRUE | FALSE if the sound/movie should start automatically
	LOOP = TRUE | FALSE | # of loops how many times to play the sound/movie
	PLAYCOUNT: how many times to play the sound/movie
	VOLUME: how loud to play the sound
	CONTROLS = VOLUMELEVER | STOPBUTTON | PAUSEBUTTON | PLAYBUTTON | SMALLCONSOLE | CONSOLE which sound control to display
	CONTROLLER = TRUE | FALSE if controls should be displayed
	MASTERSOUND: indicates the object in a sound group with the sound to use
	STARTTIME: how far into the sound to start and stop
	ENDTIME: when to finish playing
<FIELDSET>
<FONT>	SIZE: size of the font
	COLOR: color of the text
	FACE: set the typestyle for text
	POINT-SIZE
	WEIGHT
<FORM>	ACTION: URL of the CGI program
	METHOD = GET | POST how to transfer the data to the CGI
	NAME: name of this form
	ENCTYPE = "multipart/form-data" | "application/x-www-form-urlencoded" | "text/plain" what type of form this is
	TARGET = "_blank" | "_parent" | "_self" | "_top" | frame name what frames to put the results in
	onSubmit: script to run before the form is submitted
	onReset: script to run before the form is reset
<FRAME>	SRC: what file to put in the frame
	NAME: the name of the frame
	SCROLLING = YES | NO | AUTO should the frame have a scrollbar?
	NORESIZE: don't let the user make the frame bigger or smaller
	FRAMEBORDER = YES | 1 | NO | 0 should this frame have a border?
	BORDERCOLOR: color of the surrounding border
	MARGINWIDTH: the internal left and right margins for the frame
	MARGINHEIGHT: the internal top and bottom margins for the frame
<FRAMESET>	COLS: how many cols in the frameset
	ROWS: how many rows in the frameset
	FRAMEBORDER = YES | 1 | NO | 0 if the frames should have borders
	FRAMESPACING: space between the frames
	BORDER: space between frames
	BORDERCOLOR: color of frame borders
<H#> Headers<H1>, <H2>, <H3>, <H4>, <H5>, <H6>	ALIGN = LEFT | RIGHT | CENTER | JUSTIFY alignment
<HEAD>
<HR> Horizontal Rule	NOSHADE: don't use shadow effect
	SIZE: height
	WIDTH: horizontal width of the line
	ALIGN = LEFT | RIGHT | CENTER horizontal alignment of the line
	COLOR: color of the line
<HTML>
<HTMLPLUS>
<HYPE>
<I> Italics
<IFRAME> Inline Frame	SRC: URL of the document to go in the frame
	HEIGHT: height of the inline frame
	WIDTH: width of the inline frame
	NAME: name of this inline frame
	LONGDESC: URL of a long description of the contents of the frame
	FRAMEBORDER = 1 | 0 if the frame should have a border around it
	MARGINWIDTH: internal left/right margin for the frame
	MARGINHEIGHT: internal top/bottom margin for the frame
	SCROLLING = YES | NO | AUTO if the frame should have scroll bars
	ALIGN = LEFT | RIGHT | TOP | TEXTTOP | MIDDLE | ABSMIDDLE | CENTER | BOTTOM | ABSBOTTOM | BASELINE alignment of the frame object to text around it
	VSPACE: space above and below the frame
	HSPACE: space to the left and right of the frame
<IMG> Image	SRC: where to get the picture
	ALT: text to show if you don't show the picture
	NAME
	LONGDESC: URL of a long description of the image
	WIDTH: how wide is the picture
	HEIGHT: how tall is the picture
	ALIGN = LEFT | RIGHT | TOP | TEXTTOP | MIDDLE | ABSMIDDLE | BOTTOM | ABSBOTTOM | BASELINE how text should flow around the picture
	BORDER: border around the picture
	HSPACE: horizontal distance between the picture and the text
	VSPACE: vertical distance between the picture and the text
	ISMAP: is this a clickable map?
	USEMAP: name of the map definition
	LOWSRC: a version of the picture that isn't such a big file
	NATURALSIZEFLAG: meaningless
	NOSAVE: meaningless
	DYNSRC: play a movie file
	show the buttons which control the movie
	LOOP = INFINITE | -1 | # of loops how many times to loop the movie
	START = FILEOPEN | MOUSEOVER when to start playing the movie
	onLoad: script to runs after the image is downloaded
	SUPPRESS = TRUE | FALSE Don't show icons of images that haven't downloaded yet
<INPUT.>	TYPE = TEXT | v | RADIO | PASSWORD | HIDDEN | SUBMIT | RESET | BUTTON | v | IMAGE what type of field
	NAME: name of this form field
	VALUE: initial or only value of this field
	SIZE: how wide the text field should be
	MAXLENGTH: maximum number of characters
	CHECKED: check this checkbox or radio button
	BORDER: border around image
	SRC: URL of image
	ALT: text to show if you don't show the picture
	LOWSRC: a version of the picture that isn't such a big file
	WIDTH: width of image
	HEIGHT: height of image
	ALIGN = LEFT | RIGHT | TOP | TEXTTOP | MIDDLE | ABSMIDDLE | CENTER | BOTTOM | ABSBOTTOM | BASELINE how text should flow around the picture
	VSPACE: vertical distance between the picture and the text
	HSPACE: horizontal distance between the picture and the text
	READONLY: the value of this field cannot be changed
	DISABLED: don't let the user do anything with this field
	ACCESSKEY
	TABINDEX: tab order
	LANGUAGE = "JavaScript" | "JavaScript1.1" | "JSCRIPT" | "VBScript" | "VBS" | other language scripting language to use
	onClick: when the user clicks here
	onChange: when this field is changed
	onFocus: when this field gets the focus
	onBlur: when this field loses the focus
	onKeyPress: script to run when a key is pressed
	onKeyUp: script for when a key goes up while the field has the focus
	onKeyDown: script for when a key goes down while the field has the focus
	AUTOCOMPLETE = ON | OFF If the browser should use autocompletion for the field
<INS> Inserted<DEL>
<ISINDEX>	PROMPT: prompt string to show before the text entry area
	ACTION: the CGI to call
<KBD> Keyboard
<LABEL>	FOR: form element for which this is a label
<LEGEND>	v = RIGHT | CENTER | LEFT
<LI> List Item	TYPE = DISC | CIRCLE | SQUARE | 1 | A | a | I | i type of bullet or numeral
	VALUE: where to continue counting
<LINK>	REL: relationship to this page
	REV: reverse relationship to this page
	HREF: URL of related document
	TITLE: suggested title
	MEDIA = SCREEN | PRINT | PROJECTION | AURAL | BRAILLE | ALL | other media What media type the link applies to
	TYPE: MIME type of linked resource
<LISTING>
<MAP>	NAME: name of this map
<MARQUEE>	WIDTH: how wide the marquee is
	HEIGHT: how tall the marquee is
	DIRECTION = LEFT | RIGHT which direction the marquee should scroll
	BEHAVIOR = SCROLL | SLIDE | ALTERNATE what type of scrolling
	SCROLLDELAY: how long to delay between each jump
	SCROLLAMOUNT: how far to jump
	LOOP = INFINITE | number of loops how many times to loop
	BGCOLOR: background color
	HSPACE: horizontal space around the marquee
	VSPACE: vertical space around the marquee
<MENU>
<META >	NAME = KEYWORDS | DESCRIPTION | REFRESH | many others The pupose of this META tag
	HTTP-EQUIV: Name of the pretend HTTP header
	CONTENT: Metainformation content
<MULTICOL>	COLS: how many columns
	GUTTER: space between columns
	WIDTH: width of a single column
<NOBR> No Break
<NOEMBED>
<NOFRAMES>
<NOSCRIPT>
<OL> Ordered List	TYPE = 1 | A | a | I | i type of numerals
	START: where to start counting
<OPTION>	VALUE: what's the value if this option is chosen
	SELECTED: this option is selected by default
<P> Paragraph	ALIGN = LEFT | CENTER | RIGHT | JUSTIFY alignment of text within the paragraph
	CLEAR = LEFT | RIGHT | ALL | BOTH move past picture and other objects
<PARAM> Parameter	NAME: name of the parameter
	VALUE: value of the parameter
<PLAINTEXT>
<PRE> Preformatted Text
<S> Strikeout
<SAMP> Sample
<SCRIPT>	TYPE = "text/javascript" | "text/vbscript" | other scripting language Which scripting language to use
	SRC: External source for script
	DEFER: Continue loading page while downloading script
	LANGUAGE = JAVASCRIPT | LIVESCRIPT | VBSCRIPT | other Deprecated indicator of language
	FOR: object for which this script is an event handler
	EVENT: the event this script handles
<SELECT>	NAME: name of this form element
	MULTIPLE: allow more than one choice
	SIZE: how many options to show
	READONLY: don't let the user change the value of this field
	DISABLED: don't let the user do anything with this field
	LANGUAGE = "JavaScript" | "JavaScript1.1" | "VBScript" | other language scripting language to use
	onChange: what to do when a new option is selected
	TABINDEX: tab order
	onFocus: script to run when this field gets the focus
	onBlur: script to run when this field loses the focus
<SMALL>
<SOUND>
<SPACER>	TYPE = HORIZONTAL | VERTICAL | BLOCK what type of space is this
	ALIGN = LEFT | RIGHT align left or right
	SIZE: how tall or wide
	WIDTH: how wide
	HEIGHT: how tall
<SPAN>
<STRIKE> Strikeout<S>
<STRONG>
<STYLE>	TYPE: style language
	MEDIA: type of media this syle applies to
<SUB> Subscript
<SUP> Superscript
<TABLE>	BORDER: size of border around the table
	CELLPADDING: space between the edge of a cell and the contents
	CELLSPACING: space between cells
	WIDTH: width of the table as a whole
	BGCOLOR: color of the background
	BACKGROUND: picture to use as background
	ALIGN = LEFT | RIGHT alignment of table to surrounding text
	HSPACE: horizontal space between table and surrounding text
	VSPACE: vertical space between table and surrounding text
	HEIGHT: height of the table as a whole
	FRAME = VOID | BOX | BORDER | ABOVE | BELOW | LHS | RHS | HSIDES | VSIDES parts of outside border that are visible
	RULES = NONE | ALL | COLS | ROWS | GROUPS if there should be internal borders
	BORDERCOLOR: color of border around the table
	BORDERCOLORLIGHT: color of "light" part of border around the table
	BORDERCOLORDARK: color of "dark" part of border around the table
	SUMMARY: Summary of the purpose of the table
<TBODY> Table Body Section
<TD> Table Data	ALIGN = LEFT | CENTER | MIDDLE | RIGHT horizontal alignment of cell contents
	VALIGN = TOP | MIDDLE | CENTER | BOTTOM | BASELINE vertical alignment of cell contents
	WIDTH: width of cell
	HEIGHT: height of cell
	COLSPAN: number of columns to cover
	number of rows to cover
	NOWRAP: don't word wrap
	BGCOLOR: color of the background
	BORDERCOLOR: color of border around the table
	BORDERCOLORDARK: color of "dark" part of border around the table
	BORDERCOLORLIGHT: color of "light" part of border around the table
	BACKGROUND: picture to use as background
<TEXTAREA>	NAME: name of this form field
	COLS: how many characters wide
	ROWS: how many rows
	WRAP = SOFT | HARD | OFF how to wrap the text
	READONLY: don't let the user change the contents of the field
	DISABLED: don't let the user do anything with this field
	TABINDEX: tab order
	LANGUAGE = "JavaScript" | "JavaScript1.1" | "VBScript" | other language scripting language
	onChange: Script to run when the user has changed the textarea
	onKeyPress: script to run when a key is pressed
<TFOOT> Table Footer Section
<TH> Table Header
<THEAD> Table Header Section<TBODY>, <TFOOT>
<TITLE>
<TR> Table Row	ALIGN = LEFT | CENTER | RIGHT horizontal alignment of cell contents
	HALIGN = LEFT | CENTER | RIGHT
	VALIGN = TOP | MIDDLE | BOTTOM | BASELINE vertical alignment of cell contents
	BGCOLOR: background color
	BACKGROUND: background image
	BORDERCOLOR: color of border around each cell
	BORDERCOLORLIGHT: color of "light" part of border around each cell
	BORDERCOLORDARK: color of "dark" part of border around each cell
<TT> Teletype
<U> Underline
<UL> Unordered List	TYPE = DISC | CIRCLE | SQUARE type of bullets
<VAR> Variable
<WBR>
<XMP>

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Basic HTML Elements List, Learn HTML Elements Examples

Basic HTML Elements List, Learn HTML Elements Examples

• A - Anchor

Syntax

<A>...</A>

Attribute Specifications

HREF=URI (hypertext reference) NAME=CDATA (named link destination) REL=LinkTypes (relationship to link) REV=LinkTypes (relationship from link) TYPE=ContentType (content-type of link) TARGET=FrameTarget (frame to render link in) HREFLANG=LanguageCode (language of link) CHARSET=Charset (character encoding of link) ACCESSKEY=Character (shortcut key) TABINDEX=Number (position in tabbing order) SHAPE=[ rect | circle | poly | default ] (client-side image map) COORDS=Coords (client-side image map) ONFOCUS=Script (element received focus) ONBLUR=Script (element lost focus)

• ABBR - Abbreviation

Syntax	<ABBR>...</ABBR>
Attribute Specifications	common attributes

• ACRONYM - Acronym

Syntax	<ACRONYM>...</ACRONYM>
Attribute Specifications	common attributes

• ADDRESS - Address

Syntax	<ADDRESS>...</ADDRESS>
Attribute Specifications	common attributes

• APPLET - Java applet

Syntax	<APPLET>...</APPLET>
Attribute Specifications	CODE=CDATA (class file) CODEBASE=URI (base URI for class files) WIDTH=Length (applet width) HEIGHT=Length (applet height) ARCHIVE=CDATA (archive files) OBJECT=CDATA (serialized applet) NAME=CDATA (name for inter-applet communication) ALT=Text (alternate text) ALIGN=[ top | middle | bottom | left | right ] (applet alignment) HSPACE=Pixels (horizontal gutter) VSPACE=Pixels (vertical gutter)

• AREA - Image map region

Syntax	<AREA>
Attribute Specifications	SHAPE=[ rect | circle | poly | default ] (shape of region) COORDS=Coords (coordinates of region) HREF=URI (linked resource) TARGET=FrameTarget (frame to render link in) NOHREF (inactive region) ALT=Text (alternate text) ACCESSKEY=Character (shortcut key) TABINDEX=Number (position in tabbing order) ONFOCUS=Script (region received focus) ONBLUR=Script (region lost focus)

• B - Bold text

Syntax	<B>...</B>
Attribute Specifications	common attributes

• BASE - Document base URI

Syntax	<BASE>
Attribute Specifications	HREF=URI (base URI reference) TARGET=FrameTarget (frame to render links in)

• BASEFONT - Base font change

Syntax	<BASEFONT>
Attribute Specifications	SIZE=CDATA (font size adjustment) COLOR=Color (font color adjustment) FACE=CDATA (font face adjustment) ID=ID (unique ID)

• BIG - Large text

Syntax	<BIG>...</BIG>
Attribute Specifications	common attributes

• BLOCKQUOTE - Block quotation

Syntax	<BLOCKQUOTE>...</BLOCKQUOTE>
Attribute Specifications	CITE=URI (source of quotation) common attributes

• BODY - Document body

Syntax	<BODY>...</BODY>
Attribute Specifications	BACKGROUND=URI (background image for document) BGCOLOR=Color (background color for document) TEXT=Color (text color for document) LINK=Color (link color for document) VLINK=Color (visited link color for document) ALINK=Color (active link color for document) ONLOAD=Script (document has been loaded) ONUNLOAD=Script (document has been exited)

• BR - Line break

Syntax	<BR>
Attribute Specifications	CLEAR=[ left | all | right | none ] (clear floating objects)

• BUTTON - Button

Syntax	<BUTTON>...</BUTTON>
Attribute Specifications	NAME=CDATA (key in submitted form) VALUE=CDATA (value in submitted form) TYPE=[ submit | reset | button ] (type of button) DISABLED (disable button) ACCESSKEY=Character (shortcut key) TABINDEX=Number (position in tabbing order) ONFOCUS=Script (element received focus) ONBLUR=Script (element lost focus)

• CAPTION - Table caption

Syntax	<CAPTION>...</CAPTION>
Attribute Specifications	ALIGN=[ top | bottom | left | right ] (caption alignment)

• COL - Table column

Syntax	<COL>
Attribute Specifications	SPAN=Number (number of columns) WIDTH=MultiLength (width of each column) ALIGN=[ left | center | right | justify | char ] (horizontal alignment of cells) CHAR=Character (alignment character for cells) CHAROFF=Length (alignment character offset) VALIGN=[ top | middle | bottom | baseline ] (vertical alignment of cells)

• COLGROUP - Table column group

Syntax	<COLGROUP>...</COLGROUP>
Attribute Specifications	SPAN=Number (number of columns in group) WIDTH=MultiLength (width of each column) ALIGN=[ left | center | right | justify | char ] (horizontal alignment of cells in group) CHAR=Character (alignment character for cells) CHAROFF=Length (alignment character offset) VALIGN=[ top | middle | bottom | baseline ] (vertical alignment of cells in group)

• DEL - Deleted text

Syntax	<DEL>...</DEL>
Attribute Specifications	CITE=URI (reason for deletion) DATETIME=v (date and time of deletion)

• DIR - Directory list

Syntax	<DIR>...</DIR>
Attribute Specifications	COMPACT (compact display)

• DIV - Generic block-level container

Syntax	<DIV>...</DIV>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• DL - Definition list

Syntax	<DL>...</DL>
Attribute Specifications	COMPACT (compact display)

• DT - Definition term

Syntax	<DT>...</DT>
Attribute Specifications	common attributes

• EM - Emphasis

Syntax	<EM>...</EM>
Attribute Specifications	common attributes

• FONT - Font change

Syntax	<FONT>...</FONT>
Attribute Specifications	SIZE=CDATA (font size adjustment) COLOR=Color (font color adjustment) FACE=CDATA (font face adjustment)

• FORM - Interactive form

Syntax

<FORM>...</FORM>

Attribute Specifications

ACTION=URI (form handler) METHOD=[ get | post ] (HTTP method for submitting form) ENCTYPE=ContentType (content type to submit form as) NAME=CDATA (name for client-side scripting) ACCEPT-CHARSET=Charsets (supported character encodings) ACCEPT=ContentTypes (media types for file upload) TARGET=FrameTarget (frame to render form result in) ONSUBMIT=Script (form was submitted) ONRESET=Script (form was reset)

• FRAME - Frame

Syntax	<FRAME>
Attribute Specifications	NAME=CDATA (name of frame) SRC=URI (content of frame) LONGDESC=URI (long description of frame) FRAMEBORDER=[ 1 | 0 ] (frame border) MARGINWIDTH=Pixels (margin width) MARGINHEIGHT=Pixels (margin height) NORESIZE (disallow frame resizing) SCROLLING=[ yes | no | auto ] (ability to scroll)

• FRAMESET - Frameset

Syntax	<FRAMESET>...</FRAMESET>
Attribute Specifications	ROWS=MultiLengths (row lengths) COLS=MultiLengths (column lengths) ONLOAD=Script (all frames have been loaded) ONUNLOAD=Script (all frames have been removed)

• H1 - Level-one heading

Syntax	<H1>...</H1>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• H2 - Level-two heading

Syntax	<H2>...</H2>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• H3 - Level-three heading

Syntax	<H3>...</H3>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• H4 - Level-four heading

Syntax	<H4>...</H4>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• H5 - Level-five heading

Syntax	<H5>...</H5>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• H6 - Level-six heading

Syntax	<H6>...</H6>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment)

• HEAD - Document head

Syntax	<HEAD>...</HEAD>
Attribute Specifications	PROFILE=URI (dictionary of meta info) internationalization attributes

• HR - Horizontal rule

Syntax	<HR>
Attribute Specifications	ALIGN=[ left | center | right ] (horizontal alignment) NOSHADE (solid line) SIZE=Pixels (line height) WIDTH=Length (line width)

• HTML - HTML document

Syntax	<HTML>...</HTML>
Attribute Specifications	VERSION=CDATA (HTML version)

• I - Italic text

Syntax	<I>...</I>
Attribute Specifications	common attributes

• IFRAME - Inline frame

Syntax	<IFRAME>...</IFRAME>
Attribute Specifications	SRC=URI (URI of frame content) NAME=CDATA (name of frame) LONGDESC=URI (link to long description) WIDTH=Length (frame width) HEIGHT=Length (frame height) ALIGN=[ top | middle | bottom | left | right ] (frame alignment) FRAMEBORDER=[ 1 | 0 ] (frame border) MARGINWIDTH=Pixels (margin width) MARGINHEIGHT=Pixels (margin height) SCROLLING=[ yes | no | auto ] (ability to scroll)

• IMG - Inline image

Syntax

<IMG>

Attribute Specifications

SRC=URI (location of image) ALT=Text (alternate text) LONGDESC=URI (link to long description) WIDTH=Length (image width) HEIGHT=Length (image height) USEMAP=URI (client-side image map) ISMAP (server-side image map) ALIGN=top|middle|bottom|left|right (image alignment) BORDER=Pixels (link border width) HSPACE=Pixels (horizontal gutter) VSPACE=Pixels (vertical gutter) NAME=CDATA (name for client-side scripting)

• INPUT - Form input

Syntax

<INPUT>

Attribute Specifications

TYPE=[ text | password | checkbox | radio | submit | reset | file | hidden | image | button ] (type of input) NAME=CDATA (key in submitted form) VALUE=CDATA (value of input) CHECKED (check radio button or checkbox) SIZE=CDATA (suggested number of characters for text input) MAXLENGTH=Number (maximum number of characters for text input) SRC=URI (source for image) ALT=CDATA (alternate text for image input) USEMAP=URI (client-side image map) ISMAP (server-side image map) ALIGN=[ top | middle | bottom | left | right ] (alignment of image input) DISABLED (disable element) READONLY (prevent changes) ACCEPT=ContentTypes (media types for file upload) ACCESSKEY=Character (shortcut key) TABINDEX=Number (position in tabbing order) ONFOCUS=Script (element received focus) ONBLUR=Script (element lost focus) ONSELECT=Script (element text selected) ONCHANGE=Script (element value changed)

• LABEL - Form field label

Syntax	<LABEL>...</LABEL>
Attribute Specifications	FOR=IDREF (associated form field) ACCESSKEY=Character (shortcut key) ONFOCUS=Script (element received focus) ONBLUR=Script (element lost focus)

• LI - List item

Syntax	<LI>...</LI>
Attribute Specifications	TYPE=[ disc | square | circle | 1 | a | A | i | I ] (style of list item marker) VALUE=Number (number in sequence)

• LINK - Document relationship

Syntax	<LINK>
Attribute Specifications	REL=LinkTypes (relationship to link) REV=LinkTypes (relationship from link) HREF=URI (hypertext reference) TYPE=ContentType (content-type of link) TARGET=FrameTarget (frame to render link in) MEDIA=MediaDesc (media appropriate for link) HREFLANG=LanguageCode (language of link) CHARSET=Charset (character encoding of link)

• MAP - Image map

Syntax	<MAP>...</MAP>
Attribute Specifications	NAME=CDATA (name of map)

• MENU - Menu list

Syntax	<MENU>...</MENU>
Attribute Specifications	COMPACT (compact display) common attributes

• META - Metadata

Syntax	<META>
Attribute Specifications	NAME=Name (property name) HTTP-EQUIV=Name (HTTP response header name) CONTENT=CDATA (associated data) SCHEME=CDATA (form of data)

• OL - Ordered list

Syntax	<OL>...</OL>
Attribute Specifications	TYPE=[ 1 | a | A | i | I ] (numbering style) START=Number (starting number) COMPACT (compact display)

• P - Paragraph

Syntax	<P>...</P>
Attribute Specifications	ALIGN=[ left | center | right | justify ] (horizontal alignment) common attributes

• SCRIPT - Client-side script

Syntax	<SCRIPT>...</SCRIPT>
Attribute Specifications	TYPE=ContentType (content-type of scripting language) LANGUAGE=CDATA (scripting language name) SRC=URI (external script location) CHARSET=Charset (character encoding of external script) DEFER (script execution may wait)

• SELECT - Option selector

Syntax	<SELECT>...</SELECT>
Attribute Specifications	NAME=CDATA (key in submitted form) MULTIPLE (allow multiple selections) SIZE=Number (number of visible options) DISABLED (disable element) TABINDEX=Number (position in tabbing order) ONFOCUS=Script (element received focus) ONBLUR=Script (element lost focus) ONCHANGE=Script (element value changed)

• STYLE - Embedded style sheet

Syntax	<STYLE>...</STYLE>
Attribute Specifications	TYPE=ContentType (content-type of style language) MEDIA=MediaDesc (media to apply style to) TITLE=Text (title of style sheet) internationalization attributes (for the TITLE)

• TABLE - Table

Syntax

<TABLE>...</TABLE>

Attribute Specifications

SUMMARY=Text (purpose/structure of table) WIDTH=Length (table width) BORDER=Pixels (border width) FRAME=[ void | above | below | hsides | lhs | rhs | vsides | box | border ] (outer border) RULES=[ none | groups | rows | cols | all ] (inner borders) CELLSPACING=Length (spacing between cells) CELLPADDING=Length (spacing within cells) ALIGN=[ left | center | right ] (table alignment) BGCOLOR=Color (table background color)

• TD - Table data cell

Syntax

<TD>...</TD>

Attribute Specifications

ROWSPAN=Number (rows spanned by the cell) COLSPAN=Number (columns spanned by the cell) HEADERS=IDREFS (list of header cells for current cell) ABBR=Text (abbreviation for header cell) SCOPE=[ row | col | rowgroup | colgroup ] (cells covered by header cell) AXIS=CDATA (category of header cell) ALIGN=[ left | center | right | justify | char ] (horizontal alignment) CHAR=Character (alignment character) CHAROFF=Length (alignment character offset) VALIGN=[ top | middle | bottom | baseline ] (vertical alignment) WIDTH=Length (cell width) HEIGHT=Length (cell height) NOWRAP (suppress word wrap) BGCOLOR=Color (cell background color)

• TITLE - Document title

Syntax	<TITLE>...</TITLE>
Attribute Specifications	internationalization attributes
Contents	Plain text (including entities)
Contained in	HEAD

• TR - Table row

Syntax	<TR>...</TR>
Attribute Specifications	ALIGN=[ left | center | right | justify | char ] (horizontal alignment of cells in group) CHAR=Character (alignment character for cells) CHAROFF=Length (alignment character offset) VALIGN=[ top | middle | bottom | baseline ] (vertical alignment of cells in group) BGCOLOR=Color (row background color)

• UL - Unordered list

Syntax	<UL>...</UL>
Attribute Specifications	TYPE=[ disc | square | circle ] (bullet style) COMPACT (compact display)

• VAR - Variable

Syntax	<VAR>...</VAR>
Attribute Specifications	common attributes
Contents	Inline elements
Contained in	Inline elements, block-level elements

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