{"name":"Internet speed versus plan audit rules","publisher":"SwiftSpeedTest","canonical":"https://swiftspeedtest.com/internet-speed-vs-advertised-speed","schemaVersion":1,"methodVersion":"1.0","methodology":"https://swiftspeedtest.com/internet-speed-vs-advertised-speed#methodology","published":"2026-07-24","updated":"2026-07-24","version":"2026.07.24","versionUrl":"https://swiftspeedtest.com/data/internet-plan-audit-rules/2026.07.24.json","license":"CC BY 4.0","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"SwiftSpeedTest internet plan audit rules, version 2026.07.24, https://swiftspeedtest.com/internet-speed-vs-advertised-speed","aggregation":"The audit uses the median of eligible locally measured browser runs. Shared results and runs without full download and upload transfer confidence are excluded.","attainmentRule":"Each speed aggregate is divided by the user-entered reference and placed in one of three descriptive attainment bands. The bands are editorial reporting aids, not contractual, legal, or regulatory compliance thresholds.","strongerSampleRequirements":{"minimumEligibleRuns":6,"minimumCalendarDates":2,"minimumTimeSpanHours":6,"requiredConnection":"ethernet","requireOneConsistentProviderLabel":true},"attainmentBands":[{"id":"at-or-above","label":"At or above the entered reference","minimumPercentInclusive":100,"maximumPercentExclusive":null,"interpretation":"The sample aggregate equals or exceeds the speed value entered by the user."},{"id":"within-ten-percent","label":"Within 10% below the entered reference","minimumPercentInclusive":90,"maximumPercentExclusive":100,"interpretation":"The sample aggregate is below the entered value but no more than 10% below it."},{"id":"more-than-ten-percent-below","label":"More than 10% below the entered reference","minimumPercentInclusive":0,"maximumPercentExclusive":90,"interpretation":"The sample aggregate is more than 10% below the entered value. This descriptive band is not a legal or regulatory compliance threshold."}],"sources":[{"id":"fcc-broadband-labels","publisher":"Federal Communications Commission","title":"Broadband Consumer Label requirements","url":"https://docs.fcc.gov/public/attachments/DA-24-1276A1_Rcd.pdf","evidence":"Broadband labels disclose price, typical download speed, typical upload speed, and typical latency."},{"id":"fcc-measuring-broadband-america","publisher":"Federal Communications Commission","title":"Eleventh Measuring Broadband America Fixed Broadband Report","url":"https://docs.fcc.gov/public/attachments/FCC-22-103A2.pdf","evidence":"The program uses repeated measurements and reports aggregate download, upload, latency, and loss results rather than treating one observation as representative."},{"id":"ietf-rfc-2330","publisher":"Internet Engineering Task Force","title":"RFC 2330: Framework for IP Performance Metrics","url":"https://www.rfc-editor.org/info/rfc2330/","evidence":"Defines repeatability and careful methodology as core properties of useful network measurements."}],"limitations":["A browser test includes the device, browser, local network, route, and selected test endpoint; it does not isolate the ISP access line.","A single run cannot establish typical performance, consistency, causation, contract compliance, or legal entitlement.","The stronger-sample label is an editorial evidence-quality description, not certification by the FCC, an ISP, a court, or an accredited laboratory.","Entered plan, label, provider, and price values are supplied by the user and are not independently verified by SwiftSpeedTest."],"changelog":[{"version":"2026.07.24","date":"2026-07-24","changes":"Initial release with median aggregation, full-confidence eligibility, three descriptive attainment bands, and published stronger-sample requirements."}]}