Kultur, idrett og fritid - Horten kommune

Natur, klima og miljø - Horten kommune

Alle tjenester - Horten kommune

Høringer, planer og prosjekter - Horten kommune

Helsetjenester - Horten kommune

Tilgjengelighet på horten.kommune.no - Horten kommune

Akutt helsehjelp - Horten kommune

Innsyn - Horten kommune

First time visit: View without clicking anything

Plan, bygg og eiendom - Horten kommune

Avoid opening links in a new tab or window. Where you must do this, include an explanation
in the text of the link.

## Why this matters

Opening links in a new tab or window breaks the back button and can be disorientating for 
novice web users, and the visually impaired. Generally you should avoid opening links in a
new tab or window, but if you have to, you should include text explaining that this will happen.

## How to fix

An explanation must be clear in the accessible text for the link. For example:

```html
<a href="products.html" target="_blank">
    Products (opens in new window)
</a>
```

Or, for an image inside a link:

```html
<a href="products.html" target="_blank">
    <img src="products.jpg" alt="Products (opens in new window)">
</a>
```

Rather than updating all of your links manually to do this, you can add a simple CSS
selector, such as:

```css
a[target="_blank"]:after {
    content: " (opens in new window)";
}
```

Note that doing this with an icon, is not sufficient to pass this check. The text must be
readable by screen readers.

Alternatively you can override the link text for accessible technologies (like screenreaders),
so that the appearance of the link does not change. For example:

```html
<a href="products.html" target="_blank" aria-label="Products (opens in new window)">
    Products
</a>
```

Note that if you do this, the `aria-label` will replace the text content of the link completely,
so it must still make sense in isolation.

## Terminology

Although it is common to say "opens in new window", almost all browsers now use tabs, and
so this terminology is potentially confusing. You may prefer: "opens in new tab".

## Methodology

1. Silktide considers all links on a page with a `target` attribute of `_blank`.
2. For each link, Silktide considers the screen-readable text of the link, which includes:
   * The text content of the link
   * Any `alt` text inside any images inside the link
   * Any `aria-label` or `aria-labelled-by` text
   * The `content` of the pseudo-elements `:before` and `:after`
3. This text is analysed for the presence of common text, including "opens new tab"
    and "opens new window". If the text is not found, the link fails the test.

## Further reading

Generally best practice is to avoid opening links in a new tab or window.  

The W3C provides detailed guidance on 
[when opening a link in a new window may be appropriate](https://www.w3.org/TR/WCAG20-TECHS/G200.html).

link-text-explains-open-in-new-window

October 2025

September 2025

Horten

Title / URL	Issues
Kultur, idrett og fritid - Horten kommunewww.horten.kommune.no/kultur-idrett-og-fritid/	5
Natur, klima og miljø - Horten kommunewww.horten.kommune.no/natur-klima-og-miljo/	4
Alle tjenester - Horten kommunewww.horten.kommune.no/alle-tjenester/	4
Høringer, planer og prosjekter - Horten kommunewww.horten.kommune.no/horinger-planer-og-prosjekter/	3
Helsetjenester - Horten kommunewww.horten.kommune.no/helse/helsetjenester/	3
Tilgjengelighet på horten.kommune.no - Horten kommunewww.horten.kommune.no/tilgjengelighet/	3
Akutt helsehjelp - Horten kommunewww.horten.kommune.no/helse/akutt-helsehjelp/	2
Innsyn - Horten kommunewww.horten.kommune.no/innsyn/	2
First time visit: View without clicking anythingwww.horten.kommune.no/	2
Plan, bygg og eiendom - Horten kommunewww.horten.kommune.no/plan-bygg-og-eiendom/	2

Ensure links explain they open in a new tab

Horten

Where this issue has occurred