Product Updates

Changelog

Every update, improvement, and fix — in one place. We ship constantly. Here's what's been happening.

April 2026 7 updates

Apr 11 Accessibility

Accessibility improvements across all pages

Added <main> landmarks to all pages, removed user-scalable viewport restrictions, and improved ARIA labels across 34 pages for better screen reader and keyboard navigation support.

Apr 11 Performance

Mobile PageSpeed 79 → 93 via async font loading

Switched Google Fonts to non-blocking async preload across all pages. Mobile PageSpeed score improved from 79 to 93, reducing render-blocking resources and improving LCP on low-bandwidth connections.

Apr 11 Security

CSP headers hardened, Mozilla Observatory score → A

Fixed Content Security Policy headers to properly allowlist Google Ads and GTM. Added Permissions-Policy header to disable the deprecated FLEDGE API. Mozilla Observatory security score improved to A.

Apr 10 SEO

3 new high-volume blog posts published

Published "IP Reputation API Guide", "Device Fingerprinting API", and "Proxy Detection" — targeting high-volume search keywords with 1K–10K monthly searches. All pages include structured data and optimized meta.

Apr 10 Feature

OTP email redesign with individual digit boxes

Redesigned OTP verification emails with a cleaner layout featuring individual digit boxes for each character. Improved visual hierarchy and copy to reduce confusion during the signup flow.

Apr 09 Security

Google OAuth now uses proper RS256 JWKS signature verification

Replaced insecure base64 token decoding with cryptographically verified RS256 JWKS signature verification for Google OAuth tokens. Tokens are now validated against Google's public key endpoint on every auth request.

Apr 09 Security

HSTS preload, CORP headers, and CSP violation reporting

Added HSTS preload directive, Cross-Origin-Resource-Policy header, and a CSP violation reporting endpoint to capture and monitor any policy breaches in production.

March 2026 5 updates

Mar 28 SEO

Organization schema added to homepage

Added JSON-LD Organization schema markup to the homepage, including name, URL, logo, contact point, and social profiles. Improves Google Knowledge Graph presence and enables rich results in search.

Mar 20 Design

Footer expanded to 4-column layout

Redesigned the site-wide footer with a 4-column layout including dedicated sections for comparison pages (/vs/), industry landing pages (/for/), legal, and platform links. Improves internal linking for SEO.

Mar 15 Feature

5 competitor comparison pages launched

Launched dedicated comparison pages for vs IPQS, vs SEON, vs Sift, vs Kount, and vs minFraud. Each page includes an objective feature matrix, pricing comparison, and Sentinel's advantages.

Mar 10 Feature

4 industry landing pages launched

Launched tailored landing pages for SaaS, Fintech, E-Commerce, and Gaming verticals. Each page addresses the specific fraud vectors and use cases relevant to that industry with targeted CTAs.

Mar 05 SEO

10 SEO blog posts covering modern fraud vectors

Published 10 in-depth blog posts covering antidetect browsers, credential stuffing, proxy evasion, threat intelligence, and residential proxy abuse. Total indexed blog content now at 15 posts.

February 2026 4 updates

Feb 22 Infrastructure

Migrated to Turso cloud database

Replaced local SQLite with Turso cloud database for persistent, multi-region storage. Eliminates data loss on container restarts and enables low-latency reads across global edge locations.

Feb 15 Security

Rate limiting with per-IP and per-endpoint controls

Added configurable rate limiting across all API endpoints. Controls are applied per IP and per endpoint independently, with exponential backoff headers returned on limit breach.

Feb 10 Feature

New /api/device-intel endpoint launched

Launched /api/device-intel combining Fingerprint.js smart signals with Spur network intelligence. Returns a unified risk score with device-level and network-level signals in a single call.

Feb 01 Feature

Open Beta — 10,000 requests/month, free, no card required

Sentinel entered public Open Beta. All features available for free with a limit of 10,000 API requests per month. No credit card required to sign up. Rate limits apply to prevent abuse.

January 2026 3 updates

Jan 20 Feature

Closed alpha with first 50 testers

Ran a closed alpha with 50 hand-picked testers from SaaS, fintech, and e-commerce backgrounds. Feedback directly shaped the v1 API schema, response format, and signal set.

Jan 10 Infrastructure

Infrastructure setup on Railway with Cloudflare CDN and DNSSEC

Initial production infrastructure deployed on Railway with Cloudflare as CDN and DNS provider. DNSSEC enabled on the sntlhq.com domain. Global edge caching configured for static assets.

Jan 01 Feature

Sentinel founded

Started building the fraud detection API we wished existed — one that catches residential proxies, antidetect browsers, and bot farms that every legacy vendor misses. Day zero.