The HTML language is used to structure and correctly display text and other elements. The header element is an introductory element that can contain the title, logo and navigation menu of a page, among other things. The HTML header is therefore at the beginning of a website and before the body element with the content of the page.
"header" or "head" - that is the question here!
The "header" and "head" elements are similar in terms of their names, but differ significantly in terms of their function. The " header" element can be used several times on each web page, whereas "head" is only used once. The definition and distinction between the two types of tags is explained below.
Das Tag kurz und kompakt!
Mit dem Tag wird der obere Bereich einer Webseite eröffnet.
In diesem Tag sind zahlreiche Informationen enthalten, von denen der Großteil für die Website-Besucher nicht einsehbar ist. Doch für die Algorithmen der Suchmaschinen (z. B. Googlebot) und für die Browser ist nahezu jede im Page-Header enthaltene Informationunverzichtbar. Geschlossen wird dieses Header-Element mit dem Tag .
Due to the far-reaching importance of this element for the technically correct display and accessibility of every website, the page header will be discussed in more detail later in this article.
Das Tag kurz und kompakt!
Die Inhalte inmitten der Tags und sind für Website-Besucher sichtbar. Zum Einsatz kommen diese Tags sowohl in den sichtbaren Kopf-Bereichen einer Webseite als auch zwischendurch auf der Webseite.
It is worth noting that wherever not only the headings
,
,
etc., but also Images, Videos or special visualizations be used in combination with these headings, a additional header tag can be used.
Dort hingegen, wo nur die Überschriften
,
,
etc. stehen, muss man von einem zusätzlichen Header-Tag keinen Gebrauch machen, weil dies die Webseite nur unnötig aufblähen würde.
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head: One element with several important functions
The functions that the heading element fulfills on every website and every subpage of the website can be summarized in three key points.
Transmission of information about the page: Each web page has a different title and content and also differs from the other subpages of a website in other ways. The heading contains the most important information about a page.
Explanation of the relationship to other pages: By integrating the navigation menu into the head element, it becomes clear what relationship the visited page has to the other subpages of the website - for example, whether it is a category page or a subordinate web page in the menu structure.
Control the display of content: The head element is required to ensure that all desired elements are displayed in the correct order and style.
Apart from the title tag, no content element of the heading is visible to the user in the browser. Incidentally, this title tag is of immense importance for search engine optimization (SEO), especially for on-page SEO and technical SEO:
All website operators who want to achieve good rankings in search engines with their website and subpages should attach great importance to a well-maintained and technically correct page header.
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Set HTML header tag correctly - the most important tips
The head tag is one of the types of tags that consist of an opening and aclosing tag. While the alt tag only requires an opening tag and no closing tag, both tags are required for the HTML header. This is what it looks like:
Öffnend:
Schließend:
The desired content is placed between the two tags. Examples of typical header content include headings, the meta description and other metadata, logos, navigation and other introductory elements. The header is also suitable for setting local CSS rules within the "style" tag.
It is important for the correct integration of the heading element that it must not be used in the "address", "footer" and "head" elements. Placing a head tag in the heading itself or in the other two tags mentioned would be a technical error that would prevent the website from being read correctly.
Das Heading setzt als einleitendes Element direkt nach Beginn des HTML-Dokuments, also der Webseite, an – will meinen: Nach „“ kommt das öffnende Header-Tag „“. Auf dieses Heading folgt der Body-Teil, der einen öffnenden und schließenden Body-Tag enthält. Im Body werden beispielsweise der Content (öffnend „“ und schließend „“) der Seite und die Kontaktdaten des Autors bzw. Website-Betreibers (öffnend „
“ und schließend „“) hinterlegt.
Conclusion: What is an HTML header?
The term HTML header is incorrectly used for two different elements used: for and
.
Die Unterscheidung beider Elemente ist jedoch essenziell, denn vor allem das Element erfüllt eine unverzichtbare Funktion: Es sollte immer am Anfang des HTML-Dokuments genutzt werden und mit dem Title, den Metadaten sowie weiteren Angaben die wichtigsten Informationen über die Seite liefern.
Anders ist es mit den -Elementen, die mehrmals verwendet werden können und die Überschriften-Bereiche rund um die
,
,
und weitere Überschriften definieren.
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Frequently Asked Questions
Can you have multiple headers in HTML?
Multiple headers can be used in HTML. However, it is important to pay attention to the structure of the heading hierarchy in order to improve the readability and comprehension of the content.
Are HTTP headers absolutely necessary?
HTTP headers are crucial for the functionality of web applications. They provide important information about the content and handling of HTTP requests and responses, which is why they are absolutely essential.
How do you set headers in HTML?
Headers in HTML are set using the tags to , where represents the highest level and the lowest level. These tags enclose the respective title or section heading in the document.
What is the header in HTML?
The header in HTML is an important section that contains metadata, titles, and links to stylesheets or scripts to define the structure and design of a web page.
Can HTML have two head tags?
HTML cannot have two head tags. A valid document may only contain a single head tag to correctly specify the structure and metadata of the page.
How do headers influence search engine optimization?
Headers influence search engine optimization by providing search engines with important information about the content of a page. By using header tags (H1, H2, etc.) correctly, you can improve readability and structure, which can lead to better rankings.
What are the most common HTML header tags?
The most common HTML header tags are to . These tags define the hierarchy and structure of headings on a web page, with used for the main heading and used for the lowest level.
How do you validate headers in HTML?
Headers in HTML are validated by checking whether they comply with HTML syntax rules. This can be done using online validators or developer tools in the browser, which display errors and corresponding optimization suggestions.
In which part of the document are headers located?
-Tag as , etc., to define the structure and hierarchy of the content.
Can headers be optimized for SEO?
Headers can be optimized for SEO because they contain important information for search engines. The visibility of a website can be improved through the targeted use of keywords and proper structuring.
What is the difference between a header and a footer?
The difference between a header and a footer is that the header is the top section of a web page, where the logo, navigation, and other essential information are typically placed, while the footer is at the bottom of the page and often contains contact information, legal notices, and links.
Are headers important for mobile display?
Headers are important for mobile display because they improve the structure and readability of content. A clear hierarchical structure enables users to quickly find relevant information, which is particularly crucial on mobile devices.
How do you insert meta headers in HTML?
Meta headers are inserted into HTML by using the element tag within the element. This allows you to specify information such as the character set, description, or keywords.
Could faulty headers cause website problems?
Incorrect headers can actually cause problems for websites. They can lead to display issues, poor search engine rankings, and a poor user experience, which impairs the functionality and accessibility of the website.
Are headers in HTML5 different than before?
The headers in HTML5 differ in structure and semantics from previous versions. HTML5 offers new elements such as , which more clearly define the meaning of headers in the page structure and improve accessibility.
How can you recognize invalid headers in HTML?
Invalid headers in HTML can be identified by checking their structure and syntax. This includes checking for correct tag nesting, missing or duplicate attributes, and compliance with HTML specifications.
How do headers affect loading speed?
Headers have a significant impact on loading speed: they help browsers process resources more efficiently and specify loading priorities, which improves overall page performance.
Can I customize the header dynamically?
The header can be dynamically customized by using JavaScript or server-side languages to change content based on user input or conditions. These customizations help improve the user experience and provide relevant information.
How do headers interact with CSS styles?
Headers interact with CSS styles by receiving specific styles and layout adjustments. CSS can be used to specify fonts, colors, spacing, and more for header elements, effectively controlling the visual design of a web page.
Are there standard values for HTML headers?
There are standard values for HTML headers that are defined by web standards. These include basic elements such as , , , and , which are important for the correct display of a web page.
How can headers be used for testing?
Using headers for testing allows developers to define specific requirements and meta information. They can help structure content and optimize loading times and SEO aspects.
What role do headers play in web security?
Headers play a crucial role in web security: they control access to resources, specify security policies, and protect against attacks by providing information about security protocols and policies.
Can headers in HTML be multilingual?
Headers in HTML can be multilingual. By tagging different language versions of the content with the appropriate hreflang attributes, you can ensure that the correct version is displayed depending on the user's language.
How do you script headers with JavaScript?
Scripting headers with JavaScript is done by manipulating the DOM (Document Object Model). Use methods such as getElementById or querySelector to select header elements and dynamically change their properties or content.
How do headers affect accessibility?
Headers influence accessibility by creating a clear structure and hierarchy in the content. This makes it easier for users with screen readers to efficiently grasp information and navigate.
How do you remove headers from a document?
To remove headers from a document, open the document in your word processing program, select the relevant header area, and delete the content or the entire header section to remove it.
Can multiple headers exist in a tag?
Multiple headers can exist in an HTML document, but each header tag (h1, h2, h3, etc.) should be used in a structured manner within a specific section to ensure the hierarchy and readability of the content.
How do you format headers in Markdown syntax?
Headers are formatted in Markdown syntax by preceding them with hashtags (#). A single hashtag (#) stands for an H1 header, two hashtags (##) for H2, and so on up to six hashtags (######) for H6.
What happens when headers are missing in HTML?
Missing headers in HTML can lead to poor website structure, which affects readability and user experience. In addition, important information is not optimally transmitted to search engines, which can have a negative impact on SEO rankings.
How do you implement responsive design with headers?
To implement responsive design with headers, you should use flexible layouts with CSS media queries. This allows header sizes and styles to adapt to different screen sizes, improving the user experience on mobile devices.
