Privacy Notice

Last updated: 12 November 2026

Sarveshwar Singh, operating as a sole proprietor under the trade name SunVeda Technologies, handles personal information as described below.

Information and purposes

Apart from the Daiboju alert sign-up described below, this website has no native contact form. If you use a linked question form, scheduling service, or communication channel, I may receive information you submit, such as your name, contact details, organization, meeting information, and project description. I use it to respond, arrange meetings, assess or deliver requested technical services, maintain business records, secure communications, and comply with legal obligations.

Daiboju disaster alerts

Daiboju sends disaster alerts for Japan. It is not an official warning service. When you sign up, it stores only what is needed to send you alerts: the delivery channel you chose, your contact for that channel (browser push subscription, email address, phone number or LINE user ID), your language, your prefecture, whether you also want drill messages, and the sign-up time. The contact is stored encrypted. Daiboju has no accounts and does not ask for your name.

Your exact location is never sent to Daiboju. The next-steps page finds evacuation sites on your phone; to do so, your phone downloads public map data for its area from the Geospatial Information Authority of Japan (GSI), which can show GSI your approximate area (about 40 km). The guidance written with Google Gemini receives only official hazard data and the prefecture, never your contact or location.

Daiboju runs on Google Cloud Run in Tokyo. Depending on the channel you choose, alerts are delivered through your browser's push service, Resend (email), LINE, or Twilio (SMS and WhatsApp), which may process your contact outside Japan under their own terms. Your record is kept until you delete it with the link shown after sign-up or in alert messages, and is removed automatically when a channel reports the address no longer exists. While the service is in test mode, alerts are simulated and records may be cleared when the service restarts.

Service providers

Linked hosting, scheduling, social-media, and communication providers process information under their own terms and may process it outside Japan. I do not sell personal information. Information may be disclosed when required by law or reasonably necessary to protect rights and security.

Retention and requests

Information is kept only as reasonably necessary for the purposes above, contractual records, disputes, and legal requirements. To request access, correction, or deletion, contact me through a communication link on the home page and identify the message as a privacy request.

Changes

This notice may be updated when services or legal requirements change.