Small buttons for the web.

An old-fashioned 88 × 31 link button, and a tiny IPv6 indicator. Copy the HTML into your own page; no JavaScript is needed there.

Webring / link button

A static button linking back to the connection test.

download SVG

HTML

<a href="https://ipv6.sx/"><img src="https://ipv6.sx/assets/webring.svg" width="88" height="31" alt="ipv6.sx — check your connection"></a>

More artwork: complete brand kit · light PNG · dark SVG · dark PNG.

Check your IPv6 connectivity!

Another static button inviting visitors to run the test.

download SVG

HTML

<a href="https://ipv6.sx/"><img src="https://ipv6.sx/assets/check-ipv6.svg" width="88" height="31" alt="Check your IPv6 connectivity!"></a>

Live IPv6 indicator

The green “IPv6 capable” overlay loads from the IPv6-only hostname. If that request cannot connect, the neutral “IPv6 not detected” fallback remains visible.

Preview both states

HTML

Loading the configured IPv6 hostname…

An unavailable indicator can also mean blocked external images or a server outage. It does not prove the visitor has no IPv6. This checks the viewer's connection to the image host, not whether your website supports IPv6. Visitors send an ordinary image request to the configured server.

Current-request badge

/badge.svg

This badge says “IPv6 capable” when its request arrives over IPv6, and “IPv6 not detected” otherwise. An IPv4 request does not prove IPv6 is unavailable. Use the overlay above to check IPv6 explicitly.