Privacy and data use
Updated September 24, 2026. Operator: DCOUTLIER, CNPJ 43.398.776/0001-14. Contact: [email protected].
The website, browser extension and Android app use network services. They are not zero-collection products. The information below distinguishes the website controls from the behavior of installed app versions.
Running a test
Your browser sends downloads, uploads and latency requests to Cloudflare. Network services necessarily receive your public IP address. Hosting and network providers may process request metadata in their operational and security logs. Our website does not ask for precise device geolocation. The current website engine disables its optional measurement-log endpoints; this does not disable provider access or security logs.
History on your device
The website keeps up to 30 recent results, timestamps, test mode and connection conditions you select in browser storage. These conditions are not automatically detected. Use Clear history to remove the records or clear your browser site data. CSV files you export remain wherever you save them. If storage is unavailable, history lasts only for the current visit.
Optional contribution of measurements
If you enable this option, the website sends speed, latency, jitter and bufferbloat results to DC SPEED. The PHP endpoint retains the latest 200 submitted records and forwards metrics to our Cloudflare backend. The current website contribution does not include your email or the connection conditions you entered. Earlier versions also submitted ISP and country where available. Older server-side data is not erased when you change browser preferences. Backend records have no automatic expiry in the current implementation; contact us about access or removal.
Analytics and advertising
Advertising on DCSpeedTest is provided by Google AdSense and trusted direct sponsor partners. Third-party vendors, including Google, use cookies (such as the Google DART cookie) to serve ads based on prior visits to this website or other sites on the internet. You may opt out of personalized advertising by visiting Google Ads Settings (https://www.google.com/settings/ads) or through aboutads.info (https://www.aboutads.info). Google Analytics 4 is optional, respects Google Consent Mode v2 (defaulting to denied until you provide affirmative consent), and measures aggregated performance only after you enable it. Sponsor and promotional banners are served directly by DC SPEED.
Cloudflare may also process delivery, security and performance information as the network provider. Browser preferences do not disable essential infrastructure logging. Providers apply their own retention policies; DC SPEED does not promise immediate deletion from their systems.
Optional browser notifications require explicit permission in your browser and can be revoked at any time via your browser site settings. You can manage or update your data collection and cookie preferences at any time using the privacy button below.
Newsletter, purchases and restoration
Newsletter subscriptions store the submitted email and subscription information. Subscription messages provide an unsubscribe option. Stripe processes payments. Purchase and license flows use email, payment references and a generated device identifier to activate or restore access. Restoration sends a temporary code to the purchase email. Purchased reports can include the measurement and network information submitted at checkout. Payment and operational records are separate from browser history; contact us to discuss deletion and any records that must be retained.
Extension and Android application
Installed versions have their own permissions and storage. The extension uses tabs for the requested active-tab analysis, storage for preferences, license state and history, alarms for scheduled checks, downloads for export and sidePanel for its interface. Network requests can reach Cloudflare, ipapi.co, dcspeedtest.com and the DC SPEED Cloudflare backend. Purchase and restore requests transmit the information needed to process them. The website privacy switches do not control separately installed applications. Consult the installed version and its store disclosures; contact us for app-specific data requests.
Contact and provider information
For questions or requests about your information, contact [email protected]. Do not send passwords, complete card numbers or restoration codes. We may need information sufficient to verify the request.
Cloudflare · Google · Stripe · ipapi.co