Secretus
Three encryption modes: AES-256-GCM async one-time links, authenticated X3DH-style P2P with ML-KEM-768 hybrid key agreement, and Shamir k-of-n Team Split. All encryption happens in-browser.
Estimated origin: Romania
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- It sends five of the six security headers we check; the missing one is Permissions-Policy.
- Built with React, the site is hosted on AWS S3 and served through AWS CloudFront, with a domain registered in 2025.
- It welcomes AI crawlers and publishes an llms.txt.
Built with: 20 technologies · Scale-up stack
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For light pages
<a href="https://firstsited.com/launch/71o0v0mv/secretus"><img src="https://firstsited.com/badge/71o0v0mv/stack.svg" alt="Secretus tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/71o0v0mv/secretus"><img src="https://firstsited.com/badge/71o0v0mv/stack.svg?theme=dark" alt="Secretus tech stack on FirstSited" height="28"></a>
How it fits together
Each technology runs on, or extends, the one it sits under.
| Technology | Type |
|---|---|
| Infrastructure | |
AWS CloudFront
|
CDN |
Amazon Web Services
|
Cloud |
AWS API Gateway
|
Cloud |
AWS Route 53
|
DNS |
AWS S3
|
Hosting |
| HSTS | Security |
Google Workspace
(3)
|
Business email |
| Build & Framework | |
Tailwind CSS
|
CSS framework |
Vite
|
Developer tools |
React
|
Framework |
@ungap/url-search-params
|
JavaScript library |
React Router
(2)
|
JavaScript library |
Lucide Icons
|
UI library |
Radix UI
|
UI library |
shadcn/ui
|
UI library |
| Analytics & Marketing | |
Google Analytics
|
Analytics |
Google Search Console
|
SEO |
Google Tag Manager
(2)
|
Tag management |
| Business Tools | |
| ANPC SAL | Compliance |
| Other | |
Product Hunt
|
Directory |
Each technology links to its own page: which other new sites launched with it.
Site checks
| Custom title and meta description | |
| Open Graph tags (title, image, description) | |
| Twitter card meta tags | |
| Canonical URL declared | |
| Responsive viewport meta tag | |
| Favicon present | |
| Semantic HTML (nav, main, article) | |
| Page title is 68 characters Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible. |
| Referrer-Policy | |
| X-Frame-Options | |
| Permissions-Policy experimental | |
| X-Content-Type-Options | |
| Content-Security-Policy | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /privacy | |
| Terms of service /terms | |
| Consent manager analytics set no tracking cookies on our visit (it may be opt-in) |
Mentions: GDPR, Cookies, DPO, Do Not Sell
| robots.txt | |
| sitemap.xml 203 URLs | |
| security.txt optional | |
| llms.txt | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published | |
| No AI bots blocked in robots.txt | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF -all | Strict (-all) | |
| DMARC p=quarantine | Quarantine | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | AMAZON-02 - Amazon.com, Inc., US AS16509, US |
|---|---|
| DNS | AWS Route 53 authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Amazon valid 25 Oct 2026 to 10 May 2027, as captured |
| Domain age | 1 year registered Jul 2025, Squarespace Domains II LLC. |
| Green hosting | No record per The Green Web Foundation |
| Page build | 4 JS files, 1 CSS file 1 third-party domain, code splitting |
| App manifest | Secretus — Encrypted Secret Sharing display standalone; 3 icons; productivity, security, utilities |
| Brand colours |
Storage: 1 item
| Database | Version | Set by |
|---|---|---|
| secretus-request-keys | 1 | - |
Using 72 KB of browser storage (of a 10 GB quota).
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 233 ms | good, faster than 58% of sites |
| Largest contentful paint | 744 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 507 KB | light |
| Image weight | 69 KB | light |
| Images | 5 | 2 larger than shown, 2 without width and height |
| Third-party domains | 1 | |
| Console errors | 0 | none |
| Failed requests | 0 | none |
From a single automated render of the home page. A quick guide, not a substitute for Lighthouse or field data. How we measure
Notes
-
Looks AI-built: few AI signals.
How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
Which signals fired
Signal Points AI copy signals +5 AI onboarding signals +5 AI palette signals +5 AI writing signals +5 AI iconography signals +3 - Performance comes from one render on 10 November 2026 and will vary between visits.
How we know
FirstSited records what new websites are built with, usually within a day of going live. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We checked this one in full: its tech stack, DNS, security headers and page basics. This page is what we saw on 10 November 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Watch any of them and get every new site that uses it as it goes live, from £15 a month.