How to Choose a Placeholder Favicon for Your Website
A practical guide to choosing a temporary favicon: what makes a good placeholder, how to build it as a simple SVG with a raster fallback, and how to check it before launch.
Contents
The short answer
A good placeholder favicon is a single, high-contrast shape you are allowed to use: usually one initial, a solid geometric mark or a simplified fragment of your planned logo, drawn on a plain background. Build it as a simple vector file so it stays sharp at any size, add a raster fallback for browsers that do not use SVG icons, and design it so it is easy to replace when the final logo is ready. Do not use a stock icon or another brand's mark unless you have confirmed you have permission to reuse it.
A favicon is the small icon a browser shows next to a page title in tabs, bookmarks, history and similar places. A placeholder favicon is a temporary version used while the real brand mark is still in progress, so the site does not show a blank or default browser icon in the meantime.
Terms you need for this decision
- Vector graphic: artwork defined by mathematical paths (lines and curves) rather than a grid of pixels, so it can be scaled without losing sharpness.
- SVG (Scalable Vector Graphics): a text-based vector file format that browsers can render directly.
- Raster image: an image made of pixels, such as PNG or ICO; it has a fixed resolution and can look blurry when scaled.
- ICO: a container format that can hold several raster images at different sizes in one file; it is the traditional favicon format.
- Path: a single vector outline made of anchor points and the segments between them.
- Outlined text: lettering converted into paths so the icon no longer depends on a font being installed.
What makes a placeholder work at favicon size
Favicons are displayed very small, so detail that looks fine in a full logo disappears or turns into noise. The following are design recommendations rather than formal requirements, but they reflect how small icons are actually seen:
- Use one idea only: a letter, a simple shape or one recognizable element, not a full logo lockup with a wordmark.
- Prefer strong contrast between the mark and its background so it remains visible on both light and dark browser themes.
- Avoid thin strokes, fine gradients and small counters (the enclosed spaces inside letters), which tend to fill in at small sizes.
- Keep generous space around the mark so it does not touch the edges of the icon area.
- Choose colors that will not clash with the final brand palette, or use a neutral color if the palette is undecided.
Choosing the source of the placeholder
The safest options, in rough order of preference, are: a mark derived from your own in-progress logo, a letterform you draw or outline from a font whose license permits logo or icon use, or a simple geometric shape you create yourself. Each of these avoids reusing someone else's identity.
Be careful with downloaded icon sets and generator tools. A file being delivered as SVG does not prove that it contains only clean vector paths, that it is editable, or that you are permitted to use it as a site identity mark. Some SVG files wrap embedded raster images, and icon licenses can restrict branding use. Check the license terms and open the file in a vector editor or text editor to see what it actually contains.
Step by step: building the placeholder
- Decide the mark: pick a single letter, shape or simplified logo element.
- Set up a square artboard in your vector editor so the icon has an equal width and height.
- Draw the mark with as few paths as practical, and convert any text to outlines so the icon does not rely on an installed font.
- Remove hidden layers, unused definitions, editor metadata and embedded images before export.
- Export an SVG and inspect it in a text editor to confirm it contains only paths and shapes you expect.
- Preview the mark at the smallest sizes it will be displayed and simplify further if it becomes unreadable.
- Export raster fallbacks (PNG and, if you want the broadest compatibility, an ICO file) from the same artwork.
- Add the icon references to the site's HTML head and deploy.
A minimal placeholder can be written directly as SVG. The example below draws a rounded square with a single letter shape; in a real file, replace the letter with an outlined path from your own artwork rather than live text.
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
<rect width="32" height="32" rx="6" fill="#1f2937"/>
<path d="M10 24V8h7a5 5 0 0 1 0 10h-3v6z" fill="#ffffff"/>
</svg>
The viewBox attribute defines the internal coordinate system of the drawing, which is what allows the browser to scale the icon cleanly. The xmlns value in this snippet is the standard SVG namespace identifier required by the format, not a link to visit.
Referencing the favicon in your site
Browsers read favicon declarations from link elements in the page head. Declaring an SVG icon together with a raster fallback lets browsers that support SVG favicons use the scalable version while others use the PNG or ICO. Support for SVG favicons differs between browsers, which is why the fallback matters. File paths below are placeholders for wherever you store the icons.
<link rel="icon" href="/favicon.ico" sizes="any">
<link rel="icon" href="/favicon.svg" type="image/svg+xml">
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
Keep the same file names when you swap in the final logo later. That way only the image files change, not the markup, which makes the replacement a simple file update.
Verifying the result
- Open the site in several browsers and confirm the icon appears in the tab instead of a blank or default icon.
- Check the icon in both light and dark browser themes.
- Bookmark the page and confirm the icon appears there too.
- Load the SVG file directly in a browser to confirm it renders on its own.
- If an old icon keeps showing, clear the browser cache or test in a private window, since browsers often cache favicons aggressively.
- Record where the placeholder artwork came from and its license status so the final swap and any rights questions are easy to handle later.
Limits of this guide
No specific measurements, browser support tables, or tool comparisons were available as confirmed evidence for this article, so it does not list exact required icon sizes or claim which browsers support which formats. Before launch, check current browser documentation for exact size and format requirements, and treat the design guidance here as recommendations rather than fixed rules.