# DNS Prefetching — Open Links Faster in Chrome (2026)

> Clicking a link to a new site adds a hidden 20-120ms delay. SuperchargePerformance resolves linked sites in the background so the page opens faster.

- Canonical: https://www.superchargebrowser.com/features/dns-prefetching/
- Extension: performance
- Published: 2026-05-12
- Updated: 2026-06-11
- Source: SuperchargeBrowser (https://www.superchargebrowser.com)

Every time you navigate to a domain you haven't visited recently, Chrome performs a DNS lookup before it can start the connection. On fast networks this adds tens of milliseconds. On slower ones it's the first in a chain of delays.

## How It Works

SuperchargePerformance scans links on the current page and injects connection hints for the domains those links point to. The top three domains get a `<link rel="preconnect">` hint — Chrome completes the full DNS + TCP + TLS handshake in the background. Remaining domains get a lighter `<link rel="dns-prefetch">` hint that resolves only the DNS record.

Click a link to one of those domains and the DNS step is already done. The browser can start the connection and request immediately.

## Two Modes

| Mode | What's prefetched |
|---|---|
| Common | A fixed list of 7 widely used domains (Google, YouTube, Amazon, CloudFront) |
| All Page Domains | Every unique external domain found across the first 175 links, scripts, and iframes on the current page |

Common mode is lighter — the hint list never changes per page. All Page Domains is more aggressive, scanning the actual page contents so prefetches cover the specific external services this page links to. The trade-off is more background DNS queries.

Default is **Off**. Enable it if you find navigation to new domains feels sluggish, particularly on connections with high DNS latency.

## PRO Requirement

Predictive DNS Prefetching requires a PRO license. It is available as part of the one-time PRO upgrade alongside custom tab suspension timers, system font forcing, full script blocking, background throttling, and image blocking.

## Privacy Note

DNS queries for prefetched domains go to your configured DNS resolver. This means your resolver sees requests for domains linked on the current page, including ones you never click. If that's a concern, leave the feature off. No data goes to SuperchargeBrowser — the only external communication is standard DNS resolution through your own resolver.

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Canonical URL: https://www.superchargebrowser.com/features/dns-prefetching/