Roughly what share of internet traffic to Google was IPv6, as of early 2026?

About half — Google measured ~50.1% of its traffic over IPv6 on a single day in March 2026, up from ~46.3% a year earlier.

Google publicly tracks the percentage of users reaching its services over IPv6, making it a widely-cited de-facto indicator of IPv6 adoption:

• A single peak day in March 2026 hit roughly 50.1% IPv6
• That's up from about 46.3% the year before — a steady, multi-year upward climb
• Crossing ~50% is symbolically important: it means IPv6 is no longer a minority protocol for one of the world's largest traffic sinks

This illustrates that IPv6 deployment, though slow and lacking a "flag day," is genuinely happening at internet scale.

Tip: You can watch this live on Google's own "IPv6 Adoption" statistics page — a good reality check on how far the migration has actually come.

Go deeper:

• Google IPv6 Adoption statistics — the live graph (and per-country map) of the percentage of Google users reaching it over IPv6.