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About SilenceRadar

SilenceRadar is a dashboard for Google Analytics 4. It shows realtime visitors for every website you run, across any number of Google accounts, on one screen, and emails you when a site goes silent, telling you whether the site is down or its analytics tag stopped sending data.

Why it exists

Google Analytics shows one property at a time, inside one Google account at a time. Anyone looking after more than a few websites, such as an agency with client sites or a builder with side projects, ends up opening tab after tab, switching logins, and still finding out about a broken tag days later, when a report looks wrong and the data is already lost. SilenceRadar puts every property on one live screen and watches them for silence, so a site that stops getting visitors is noticed within hours.

Who makes it

SilenceRadar is built and run by K99 (k99.digital), an independent software business in Japan. Seller details required by Japanese law are on the commerce disclosure page. Questions, bugs and feature requests go to info@silenceradar.com.

How it handles your data

  • It reads Google Analytics through Google's official APIs with read-only access. It can't edit properties, users, tags or settings.
  • Its use of Google user data follows the Google API Services User Data Policy, including the Limited Use requirements.
  • Report values are cached for at most 10 minutes. Your Google data is never sold and never used for advertising.
  • Access tokens are stored encrypted. Disconnecting an account deletes its token, and deleting your account deletes your data and revokes access.
  • Nothing is added to your websites: there is no extra script and no effect on page speed.

The full details are in the Privacy Policy and the Terms of Service.

SilenceRadar at a glance

Product
SilenceRadar, a dashboard and silence monitor for Google Analytics 4
Made by
K99 (k99.digital), an independent software business in Japan
Current version
Launched October 22, 2026
Data source
Google Analytics 4, through Google's official Analytics Data API and Admin API
Google access
Read-only (the analytics.readonly scope); it can't change anything in Analytics
Price
$9 a month or $90 a year, one plan, unlimited properties; 7-day free trial without a card
Payments
Stripe
Contact
info@silenceradar.com

Keep reading

  • Features: the Radar, silence alerts, multiple Google accounts and boards.
  • Comparisons with Looker Studio, Databox and the GA4 interface.
  • Changelog: what changed and when.