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Everything you need to know about Favicon!

Everything you need to know about Favicon!

It is the Favicon if you do not notice the small icon in the tab when creating your website. It is as if it is a microscopic signature of your website. Despite its small size, this is not just a decorative element – it helps to find the site quickly in everyone's browser, makes the brand more memorable, and adds some individuality to your virtual world.

This guide will discuss favicons, why they are so crucial to us, and how to create one that will accurately represent your website. It's not purely focused on appearance – an excellent favicon establishes an identity for your site that is easily recognizable and unique to your brand. Therefore, It's time to explore the world of favicons and ensure that your site looks better than ever, which everyone appreciates.

Table of Contents

  1. What is a Favicon?
  2. Favicon History
  3. Favicon Standardization
  4. Where can you see the Favicon?
  5. Why do favorites matter?
  6. What Size is a Favicon?
  7. Why Favicons are Important
  8. Standard Favicon File Formats:
  9. Favicon Challenges
  10. How to Create a Favicon for Your Website
  11. Tips for Designing a Favicon
  12. How to Add a Favicon in HTML
  13. How do Favicons Affect SEO?
  14. Testing Your Favicon

What is a Favicon? 

A favicon is a tiny image that represents the website or a webpage. It is generally located in the address bar, tabs, bookmarks, and other screens where the site is visually identified. Favicons are usually shaped in a square and are used as a kind of branding for online entities.

Favicon History 

Microsoft introduced the favicon – a 16x16 pixel ICO-format icon – in Internet Explorer 5 (1999) as the starting point of visual website branding. Initially located in the “root” directory, this idea can be traced to the early text-based browsers such as Lynx, which used small symbols depicting the security status. Favicons eventually became a widely used browser feature, including Firefox and Chrome, with larger sizes and more formats. Now, these developed icons facilitate the brand identity of organizations on the World Wide Web.

Favicon Standardization

The standardization of favicons can be considered a transformative trip in the world of web designing that began in 2005 when the W3 published a crucial recommendation. Notably, the recommendations issued by the W3C addressed not only the issue of naming the favicon file but also specified the favicon file’s dimensions and format exactly. In particular, the file should be titled “favicon.ico” in the root directory. This milestone was the starting point of all-encompassing favicon adoption, which ended in uniform representation in various browsers and gadgets.

W3C was an additional update made in 2011, which gives its suggestions by incorporating other image formats and sizes for favicons. This universal approach included specifications for promoting some of the icons stored in various gadgets, making it adaptive to the world of technology that was metamorphosing at every instance in the web era. Apart from the uniformity of presentation, the inclusion factor of favicon standardization has also made the work of web designers and developers easier. This standardization prevents the need to create unique settings for every browser or device, which, in the end, leads to simplified workflows and, hence, a more straightforward web for the user. This is a sign of a continuing parade towards developing a visually-oriented communicative universe and user-friendliness in the fluid digital world.

Where is the Favicon? 

The browser address bar, tabs, bookmarks or favorites, and browser history are sites where favicons can be viewed through a web browser.

Favicon on a web browser

favicon on web browser tab

Display of the Favicon on the Bookmark Bar

Favicon on bookmark bar

The Appearance of a Favicon in Your Browser’s History

favicon in your browser’s history

Favicon Presentation in Search Results

Favicon in result pages

Why Favicons are Important

Favicons play a crucial role in the visual identity of websites and help people identify them plus experience trust. They enhance the overall browsing experience, creating an attractive and user-friendly component.

Enhancing User Experience:

First, favicons are essential in improving users' experience by acting as visual identifiers of your site. They enable convenient identification of your site in browsers and many apps like bookmarks, allowing users to revisit the site quickly. The influence of favicons on the User's experience includes mobile services where a good favicon adds much to the beauty of web design.

Brand Cohesiveness: 

In the world of branding, every minor detail matters. Although favicons may be small, they support your branding and ensure your website's visibility. They serve as a supplement that continues your brand's visual dialect beyond the borders of your site and imprints a memory on web people. Favicons increase your website's overall validity and seriousness, completing its "look."

Credibility Boost:

Favicons are not secure elements, but most people perceive sites with a favicon as trustworthy. Favicons show that the visitors are on your site whether they found it through branded or non-branded searches. This perceived credibility can positively affect the level of trust and confidence that a user places in your site.

Encouraging Return Users: 

Favicons act as brand identifiers, making them easily distinguishable in a search result page or the User's browser history. With recognizable favicons, it is easy for users to return to your site. Favicon increases your site's visibility when users bookmark it; as a result, it becomes a breeze to identify it among their collection of saved sites.

Why Does Favicon matter? 

Favicons have a significant role to play as far as user experience and brand recognition are concerned. They contribute to the consistent browsing experience by enabling users to recognize and distinguish between various tabs and bookmarks quickly.

What Size is a Favicon? 

The standard size for a favicon is 16x16 pixels, but 32x32 or 64x64 pixels are also frequently used. Larger dimensions can also be helpful for modern high-density displays focusing on legibility.

16x16: The size of browser favicons.

32x32: The dimensions of taskbar shortcut icons.

96x96: The width of desktop shortcut icons.

180x180: Apple touch icon size.

300x300: The size required by Squarespace.

512x512: The size required by WordPress.

Standard Favicon File Formats:

ICO - Favicon.ico:

The ICO format is a favicon's original and most widely used file format. Created by Microsoft, it is used to have multiple small images in the same file. This remarkable characteristic allows for separate scaling and optimization of small icons(16×16, 32×32, and 48×48 pixels) within the ICO file. The ICO format is a universal one because all browsers support it. In particular, it is the only format supported by Internet Explorer versions 5 to 10.

PNG - Favicon.png:

PNG is one of the most recognizable and user-friendly formats that does not require specific tools to create. Modern high-resolution screens now eliminate this minor icon dimension issue for low resolutions. The favicon quality for the browsers supporting the PNG format is generally higher than for the ICO-format favicon. But PNG does not support Internet Explorer versions 5-10.

SVG - Favicon.svg:

SVG's favorable feature is that it is lightweight and infinitely scalable and produces excellent quality images without affecting the loading time for the larger images. While these benefits are valid, the usage of SVG format for the favicons has limited browser support. Currently, the only browsers that support SVG format favicons are Chrome, Firefox, and Opera, making it a less popular option than ICO and PNG.

Favicon Challenges 

Problems related to favicons are compatibility across browsers, resizing issues, and the ability to portray one's brand within limited space accurately.

Limited Design Space:

Resizing your brand logo to fit the small size of a favicon can be quite a challenge. You are creating a brand message that needs to be done in this area and ensure effectiveness through thoughtful design.

Security Concerns: 

Malicious code injection, malware, spoofing attacks, and phishing threats are potential cybersecurity threats for favicons. These dangers must be protected from the stable online world.

Website Load Time and Speed:

As with all web images, favicons must be optimized to avoid the adverse outcomes of a site’s loading speed. There are poorly optimized favicons that affect the performance of website pages.


Reliability issues make favicons unsuitable for accessibility purposes because of their small size. The limited room available does not allow explanatory texts or cues to be kept, adversely affecting users with special needs.

Compatibility Issues: 

Even though attempts to normalize files and formats for favicons have been made, it is still possible to have inconsistencies between browsers and devices. These differences may influence how favicons are rendered on the web, leading to considerations during design.

Developing a Favicon For Your Website

Choose a Design Tool: 

Consider graphic design software such as Zoviz logo maker or simple platforms like to create a distinctive favicon based on your branding vision.

Design Your Icon: 

Focus on simplicity when developing an icon that reflects your brand values. Clear designs ensure easy identification.

Reflect Branding 

Brand recall can be aided by colors and characteristics reflecting your brand identity. The Favicon becomes a quick visual indicator of the site, virtually linking it to specific brand attributes.

Consider Scalability 

A nicely-made favicon preserves its identity even when it is resized. This is because Scalability plays an essential role in maintaining the integrity of the icon as users use it on different devices and interfaces.

Use a Square Canvas 

It is fundamental to choose a square canvas. It follows the design principles and ensures clarity and symmetry, essential for correct favicon representation.

Save in ICO Format: 

Go for ICO format compatibility. This format helps with integration into your site's structure.

Tips for Designing a Favicon

facebook favicon

Prioritize Simplicity: 

However, a straightforward design facilitates recognition even when reduced. Complexity may diminish recognizability.

Use Consistent Branding:

 Include brand colors and attributes to ensure consistency with overall branding. This reinforces brand identity.

Test at Different Sizes: 

Make sure a favicon remains readable and recognizable in different scales. This ensures its functionality on various platforms.

Adding a Favicon to HTML

Create a Favicon File: 

Save your favicon under the name “favicon.ico.” This move helps prepare the icon for insertion into a website hierarchy structure.

Upload to Root Directory: 

Locate the favicon.ico file in your site's leading directory. It is this convenient location that facilitates easy access.

Add HTML Code: 

Make a favicon an integral part of your website by inserting specific HTML code in the <head> section. This link tag sets up the connection between your site and the Favicon.

<link rel="icon" href="favicon.ico" type="image/x-icon">

How do Favicons Affect SEO? 

Although favicons do not directly influence SEO, they indirectly help improve the user experience. An optimally designed favicon can increase brand recognition, user engagement, and satisfaction, positively affecting search engine positions.

They can indirectly influence SEO through the following mechanisms:

User Experience Improvement: 

A quality favicon improves user experience. It enables the users to immediately identify and familiarize themselves with your site, thus generating enhanced user interaction rates and satisfaction levels. Indirectly, positive user signals like lower bounce rates and higher dwell time can affect SEO rankings.

Brand Recognition:

 Brand recognition involves the use of favicons. It may enhance awareness and trust since it makes it easy for a user to identify your website if they have seen its logo design as a favicon. Familiar brands often get more clicks on the SERPs, which can ultimately impact CTRs, thus influencing SEO.

Perceived Authority: 

A favicon designed by a professional can bring more credibility and seriousness to your website. A well-designed favicon can be linked to a trustworthy and reputable brand by users. If that is subjective, positive user perceptions can indirectly impact SEO.

Differentiation in Search Results:

 An identifiable favicon can make your website stand out from crowded search results. People might click your domain’s link if they see a recognizable favicon associated with the listing of an equipment site. High CTR could be a positive sign for search engines.

Consistent Branding Signals:

 Having a favicon consistent with your general branding strategy ensures uniformity in visual identity. Branding signals consistency, which may strengthen your brand message and indirectly impact SEO.

Testing Your Favicon 

A well-performing favicon must be tested to ensure it runs smoothly on various devices. To begin with, try the favicon on different browsers through distinct tabs and bookmarks. Ensure that the browser displays the favicon next to your site history. Ensure its presence in the search engine results pages by searching for your brand name or website. Prove the favicon on diverse mobile devices to maintain the exact representation and check on incognito or private browsing modes to avoid caching issues. Determine its SEO attributes by typing the target keywords into the search bar and checking whether they appear in search results.

Consider whether your favicon design represents your brand identity and is appealing in small and large sizes. Cross-browser testing should be carried out to ensure compatibility with different browsers, including Chrome, Firefox, Safari, and Edge, along with many others. When the size of the box in which your browser the box increases and decreases, note how the favicon resizes while keeping legibility and visibility regardless of the size it shows up. So, the best way would be to collect their feedback regarding their experience with the favicon and their thoughts on it to have ideas for improvement. Monitor your site's load times, keep track of the negative impact of the favicon, and optimize the favicon to prevent the pointless effect on the site's speed. Extensive testing of the favicon ensures that it contributes to user experience, branding, and the looks of the website and that it continues to work as intended in the future. Update your favicon frequently to reflect advanced branding or design trends.


This article explores the world of favicons. Explaining their role as tiny but powerful visual signatures for websites. It browses through the chronology and normalization of Favicons, highlighting their essential places in browsers, tabs, bookmarks, and search results. While elaborating on their pivotal contribution to user experience, brand cohesiveness, and credibility, this document also delves into common Favicon design issues, such as lack of space and security issues. It looks into the SEO implications by discussing the non-direct impact of thoughtfully designed Favicons on user satisfaction, brand name recognition, and search engine rankings. The guide ends with an extensive testing protocol to provide hassle-free visibility across multiple platforms, making it an invaluable support for both novices and experienced web developers.

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