In essence, when you go to a URL and specify a specific file , that is what the server will deliver. If you do not specify a file name, the server looks for a default file and displays that automatically—almost as if you had typed in that file name in the URL.
Besides index. The reality is that a web server can be configured to recognize any file you want as the default for that site. That being the case, it's still a good idea to stick with index. While default. Whenever you have a directory on your website, it is a best practice to have a corresponding index.
Even if you do not plan to display content on the index pages of select directories with any actual page links, having the file in place is a smart user experience move, as well as a security feature. Most web servers start out with the directory structure visible when someone comes to a directory without a default file.
This view shows them information about the website that would otherwise be hidden, such as directories and other files in that folder. This transparency can be helpful during a site's development, but after a site is live, allowing for directory viewing can be a security vulnerability.
If you don't put in an index. While this behavior can be disabled at the server level, it means that you need to involve the server admin in order to make it work. IIS installations have directory browsing disabled by default. If the default document is not found and both default document and directory browsing is disabled, the user will get a error. If you are pressed for time and want to control this on your own, an easy workaround is to simply write a default web page and name it index.
Uploading that file to your directory will help close that potential security hole. Additionally, it is also a good idea to also contact your hosting provider and ask for directory viewing to be disabled. Some websites, like those that are powered by a content management system or ones that use more robust programming languages like PHP or ASP, may not use.
For these sites, you still want to ensure that a default page is specified, and for select directories in that site, having an index. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile.
It is not useful in ordinary HTML. By default, it renders text within it one font-size smaller, such as from small to x-small. It is an empty element, meaning that it has no content and does not have a closing tag.
It is commonly used to offer the same media content in multiple file formats in order to provide compatibility with a broad range of browsers given their differing support for image file formats and media file formats. It was devised by Netscape to accomplish the same effect as a single-pixel layout image, which was something web designers used to use to add white spaces to web pages without actually using an image. It can be used to group elements for styling purposes using the class or id attributes , or because they share attribute values, such as lang.
It should be used only when no other semantic element is appropriate. Browsers typically render the contents in bold type. Subscripts are typically rendered with a lowered baseline using smaller text. Superscripts are usually rendered with a raised baseline using smaller text. It participates in the table model. The exact nature of this group is defined by the scope and headers attributes.
It may include the datetime attribute to translate dates into machine-readable format, allowing for better search engine results or custom features such as reminders. It only contains text; tags within the element are ignored. The row's cells can then be established using a mix of td data cell and th header cell elements. It lets you specify timed text tracks or time-based data , for example to automatically handle subtitles. The tracks are formatted in WebVTT format.
This element was created for the purpose of rendering text as it would be displayed on a fixed-width display such as a teletype, text-only screen, or line printer. This is rendered by default as a simple solid underline, but may be altered using CSS.
It's typically presented using an italicized version of the current typeface, although that behavior is browser-dependent. The HTML2 specification recommended that it should be rendered wide enough to allow 80 characters per line.
The attribute value must consist of a single printable character which includes accented and other characters that can be generated by the keyboard.
Classes allow CSS and Javascript to select and access specific elements via the class selectors or functions like the DOM method document. If so, the browser modifies its widget to allow editing. For example, it can be used to hide elements of the page that can't be used until the login process has been completed.
Browsers won't render elements with the hidden attribute set. Its purpose is to identify the element when linking using a fragment identifier , scripting, or styling with CSS. This allows a browser to display an appropriate virtual keyboard.
Every HTML element can have an itemprop attribute specified, and an itemprop consists of a name-value pair. Each name-value pair is called a property , and a group of one or more properties forms an item. Property values are either a string or a URL and can be associated with a very wide range of elements including audio , embed , iframe , img , link , object , source , track , and video.
Specifying the itemscope attribute for an element creates a new item, which results in a number of name-value pairs that are associated with the element. Part names allows CSS to select and style specific elements in a shadow tree via the ::part pseudo-element.
Note that it is recommended for styles to be defined in a separate file or files. This attribute and the style element have mainly the purpose of allowing for quick styling, for example for testing purposes. This ensures they are available earlier and are less likely to block the page's render, improving performance. Search engines and web crawlers can extract and process microdata from a web page and use it to provide a richer browsing experience for users.
Search engines benefit greatly from direct access to this structured data because it allows search engines to understand the information on web pages and provide more relevant results to users. Microdata uses a supporting vocabulary to describe an item and name-value pairs to assign values to its properties. Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and classic microformats.
These minimal patterns of HTML are used for marking up entities that range from fundamental to domain-specific information, such as people, organizations, events, and locations.
Microformats use supporting vocabularies to describe objects and name-value pairs to assign values to their properties. The properties are carried in class attributes that can be added to any HTML element, while the data values re-use HTML element content and semantic attributes. When the web standards were made at W3C, browsers could not just start using them, as doing so would break most existing sites on the web.
Browsers therefore introduced two modes to treat new standards compliant sites differently from old legacy sites. Elements in HTML have attributes ; these are additional values that configure the elements or adjust their behavior in various ways to meet the criteria the users want. The accept attribute takes as its value a comma-separated list of one or more file types, or Unique file type specifiers, describing which file types to allow.
The HTML autocomplete attribute. The HTML autocomplete attribute lets web developers specify what if any permission the user agent has to provide automated assistance in filling out form field values, as well as guidance to the browser as to the type of information expected in the field. The capture attribute specifies that, optionally, a new file should be captured, and which device should be used to capture that new media of a type defined by the accept attribute.
HTML attribute: crossorigin. The crossorigin attribute, valid on the audio , img , link , script , and video elements, provides support for CORS , defining how the element handles crossorigin requests, thereby enabling the configuration of the CORS requests for the element's fetched data. The Boolean disabled attribute, when present, makes the element not mutable, focusable, or even submitted with the form. HTML attribute: elementtiming.
The elementtiming attribute is used to indicate that an element is flagged for tracking by the Element Timing API. The for attribute is an allowed attribute for label and output.
The max attribute defines the maximum value that is acceptable and valid for the input containing the attribute. The maxlength attribute defines the maximum number of characters as UTF code units the user can enter into an input or textarea. The min attribute defines the minimum value that is acceptable and valid for the input containing the attribute. The minlength attribute defines the minimum number of characters as UTF code units the user can enter into an input or textarea.
The Boolean multiple attribute, if set, means the form control accepts one or more values. The pattern attribute specifies a regular expression the form control's value should match. The Boolean readonly attribute, when present, makes the element not mutable, meaning the user can not edit the control.
The rel attribute defines the relationship between a linked resource and the current document. The Boolean required attribute, if present, indicates that the user must specify a value for the input before the owning form can be submitted.
The HTML5 document, the CSS and all the other front-end stuff are interpreted by the browser, and it doesn't care how that content was generated. When opening your site's root directory in a browser, index. If you have no index. This doesn't have much to do with the index. If you do not want to have all of your nav, header, footer, scripts, ect. Otherwise, if you are using only HTML, you will have to repeat the same information on every page.
The rest of your question goes a little off topic, since explaining index. Many websites use htaccess files to determine which web page in your website acts as a default page. Of course, these files and the order can be changed but this is default behavior. Here is an example of how web host ipage orders their. How are we doing? Please help us improve Stack Overflow.
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