Changelog
What's new in Subdomains by Jsmon.
Oct 10, 2026
Database grows to 5.4 billion subdomains
Database expanded from 4.5B to 5.4B+ subdomains — up 54% since launch. More certificate transparency sources, expanded DNS enumeration, and broader web crawling coverage.
Sep 24, 2026
Agentic pay-per-query API via MPP
Launched /api/mpp/domain/{domain} — a pay-per-query endpoint for AI agents using the Machine Payments Protocol. No account or API key required. $0.50 per lookup, paid with Tempo stablecoins or Stripe SPT.
Sep 21, 2026
Plain text export with ?mode=txt
Pro and Max users can export every subdomain for a domain as plain text in one call. One subdomain per line, one query consumed. Pipe straight into httpx, nuclei, or any tool.
Sep 21, 2026
Stripe coupon codes and promotion support
Enabled promotion codes during Stripe checkout. Users can now apply coupon codes when subscribing to Pro or Max plans.
Sep 21, 2026
Database grows to 4.5 billion subdomains
1 billion subdomains added since launch, bringing the database from 3.5B to 4.5B+. New sources integrated across CT logs, DNS, and web crawling.
Sep 13, 2026
Email verification required for API access
API keys now require a verified email address. Prevents abuse from throwaway signups. Unverified users see a prompt to verify before making API calls.
Sep 11, 2026
In-app subdomain search and password reset
Logged-in users can search subdomains directly from the dashboard. Also added forgot-password and reset-password flows with secure hashed tokens and expiry.
Sep 7, 2026
Email verification flow with AWS SES
Added full email verification on signup — verification and password reset emails sent via AWS SES with branded HTML templates. JWT claims updated to include verification status.
Sep 7, 2026
Mobile responsive hero section
Redesigned the landing page hero section for mobile. Fixed text clipping on small screens, improved padding, and ensured the terminal block scales properly.
Sep 6, 2026
Launch — 3.5 billion subdomains
Subdomains by Jsmon goes live with 3.5 billion subdomains indexed. Free tier with 3 queries/day, Pro ($20/mo) and Max ($100/mo) plans, and a REST API with pagination.