matriXdocs
Complete repetitive A4 forms in seconds with saved Matrix element templates, auto-apply triggers, vector signatures, and AI.
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- It publishes SPF but no DMARC record, so receivers decide for themselves what to do with email that fails.
- It sends three of the six security headers we check; X-Frame-Options is among those missing.
- The page is missing Twitter card tags and semantic HTML.
- Built with Flutter and Svelte, the site is served through Cloudflare, with a domain registered in 2025.
Built with: 15 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/2ybzys5h/matrixdocs"><img src="https://firstsited.com/badge/2ybzys5h/stack.svg" alt="matriXdocs tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/2ybzys5h/matrixdocs"><img src="https://firstsited.com/badge/2ybzys5h/stack.svg?theme=dark" alt="matriXdocs tech stack on FirstSited" height="28"></a>
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare
|
CDN |
Cloudflare DNS
|
DNS |
| HTTP/3 | Protocol |
Cloudflare Email Routing
(2)
|
Email forwarding |
| Build & Framework | |
Firebase
(2)
|
BaaS |
Flutter
(4)
|
Framework |
Svelte
|
Framework |
| OpenCV.js | JavaScript library |
PDF.js
|
JavaScript library |
cdnjs
|
Package CDN |
jsDelivr
|
Package CDN |
| Analytics & Marketing | |
Cloudflare Web Analytics
(2)
|
Analytics |
Google Search Console
|
SEO |
| Commerce & Payments | |
RevenueCat
|
Payments |
Stripe
(4)
|
Payments |
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) | |
| Canonical URL declared | |
| Responsive viewport meta tag | |
| Favicon present | |
| Meta description is 223 characters Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear. | |
| Twitter card meta tags | |
| Semantic HTML (nav, main, article) |
| 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, Data Controller, Updated: February 25, 2026
| robots.txt | |
| sitemap.xml 1 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 | Soft-fail (~all), common and accepted | |
| DMARC | Not published | |
| DKIM | Not found at common selectors | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without DMARC, receivers fall back to their own rules for email that fails SPF.
Hosting and network
| Network | CLOUDFLARENET - Cloudflare, Inc., US AS13335, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Google Trust Services valid 23 Oct 2026 to 21 Jan 2027, as captured |
| Domain age | 1 year registered Oct 2025, Cloudflare, Inc |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 7 JS files, 0 CSS files 5 third-party domains, code splitting |
| App manifest | matriXdocs display standalone; 4 icons |
Storage: 15 items
| Name | Lifetime | Set by |
|---|---|---|
| m | 1y | - |
| __stripe_mid | 1y | Stripe |
| __stripe_sid | < 1h | Stripe |
| Key | Size | Set by |
|---|---|---|
| flutter.cached_alias | 11 B | - |
| flutter.cached_credits | 1 B | - |
| flutter.cached_is_regular | 5 B | - |
| flutter.device_uuid | 38 B | - |
| flutter.guest_id | 38 B | - |
| FlutterSecureStorage | 44 B | Flutter |
| FlutterSecureStorage.device_uuid | 89 B | Flutter |
| selected_language | 2 B | - |
| Key | Size | Set by |
|---|---|---|
| flutterfire-flutter-fire-analytics-12.4.2 | 6 B | Firebase |
| flutterfire-flutter-fire-core-4.10.0 | 6 B | Firebase |
| flutterfire-flutter-fire-fcm-16.3.0 | 6 B | Firebase |
| Database | Version | Set by |
|---|---|---|
| matrixdocs_db | 1 | - |
Using 204 KB of browser storage (of a 10 GB quota).
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 134 ms | good, faster than 80% of sites |
| Largest contentful paint | 576 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 7.8 MB | heavy |
| Image weight | 30 KB | light |
| Third-party domains | 5 | |
| 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: no AI signals. How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
- 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.