Save, share, and document
Run a full browser measurement, open your device share sheet, or download a privacy-safe PNG card or structured JSON record. Every format states what the result proves, what it omits, and when another test is needed.
Measure your connection's download speed, upload speed, and latency
Optional context is saved with recent results and included only if you copy a share link.
Low-data measurement
Active because the browser cannot report connection quality. The time- and byte-bounded run requests at most about 52 MiB of test payload, and usually less. Protocol overhead may add a little more.
Test endpoint
Default Server - Nearest Location
Same-origin hosted endpoint
Endpoint readiness unavailable
Default endpoint is ready.
For the most accurate results, close other apps and devices using your network
Choose the right artifact
A convenient image, a reproducible record, and a support history do not carry the same evidence. Pick the smallest artifact that preserves what the recipient actually needs.
Sends an editable result URL through the browser's share interface. New links encode values in the URL fragment so the normal request to SwiftSpeedTest does not contain them. The complete link can include any provider or custom-location context you chose to add.
Caution: Recipients, browser history, extensions, and sharing services can still read the complete link. The values are not signed or independently verified.
Generates a 1200 by 630 image locally with the core result, loaded response when available, measurement label, and test time.
Caution: Provider, custom location, and server identifiers are deliberately omitted.
Preserves the exact metrics, responsiveness diagnostics, transfer confidence, method links, verification state, and limitations.
Caution: It is a transparent browser record, not a cryptographically signed certificate.
Exports repeated local runs for longitudinal analysis, support discussions, or your own spreadsheet workflow.
Caution: Review the full history export before sharing because it can contain context you entered.
Need a repeated record instead of one result? Use the private internet performance history to import, filter, analyze, and export up to 100 local runs.
Better evidence for support
Use one device, pause avoidable traffic, record Wi-Fi or Ethernet, and keep the endpoint consistent.
Record the room, device, plan, and test time separately when they matter. The privacy-safe downloads omit custom labels.
One result is a snapshot. Collect several comparable runs across relevant times before claiming a persistent shortfall.
Use the median of eligible runs and the plan-audit workflow instead of treating a single image as provider proof.
The PNG and single-result JSON do not contain the provider, custom location, server ID, server label, or server location. This reduces accidental disclosure when a file is attached to a ticket, message, or public post.
A browser result does not isolate every bottleneck or prove contractual compliance. Device limits, Wi-Fi, competing traffic, routing, endpoint behavior, and the measurement method remain part of the interpretation.