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HTTP headers

HTTP headers allow the client and the server to pass additional information with the request or the response. A request header consists of its case-insensitive name followed by a colon ':', then by its value (without line breaks). Leading white space before the value is ignored.

Name	Value
HTTP/1.1 200 OK
Date	Wed, 27 Sep 2017 21:34:57 GMT
Server	Apache
Last-Modified	Thu, 11 May 2017 04:51:10 GMT
ETag	"1840004-405c-54f3856686b80"
Accept-Ranges	bytes
Content-Length	16476
Connection	close
Content-Type	text/html

HTML <head>

The <head> element is a container for metadata (data about data) and is placed between the <html> tag and the <body> tag.

HTML metadata is data about the HTML document. Metadata is not displayed.

Metadata typically define the document title, character set, styles, links, scripts, and other meta information.

The following tags describe metadata: <title>, <style>, <meta>, <link>, <script>, and <base>.

<title>

Title is missing.

<meta> description

Meta description is missing.

<meta> keywords

Meta keywords are missing.

<meta> other (0 records found)

Name	Value

<style>

<head> section doesn't contain any styles.

<link> (0 records found)

Name	Value

<script>

Internal

<head> section doesn't contain any internal script sections.

External

Name	Value

<base>

<head> section doesn't contain a base section.