Cardiffy
Cardiffy is a free digital business card app for iPhone and the web. Share by QR, link or tap, scan paper cards, and keep every contact in one place.
Added 11 Nov 2026
Analysed 11 Nov 2026
via 
What we found
- Analytics set tracking cookies before any opt-in, and we found no consent manager.
- It sends none of the six security headers we check.
- DMARC only monitors (p=none), so email spoofing this domain is still delivered.
- Built with Next.js and React, the site is hosted on netcup-AS - netcup GmbH in Austria.
Built with: 13 technologies · Indie stack
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For light pages
<a href="https://firstsited.com/launch/gy83tpye/cardiffy"><img src="https://firstsited.com/badge/gy83tpye/stack.svg" alt="Cardiffy tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/gy83tpye/cardiffy"><img src="https://firstsited.com/badge/gy83tpye/stack.svg?theme=dark" alt="Cardiffy 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 | |
Cloudflare DNS
|
DNS |
| HTTP/3 | Protocol |
Cloudflare Email Routing
(2)
|
Email forwarding |
Resend
|
Transactional email |
| Build & Framework | |
Supabase
(2)
|
BaaS |
Tailwind CSS
|
CSS framework |
React
(2)
|
Framework |
Next.js
(6)
|
Meta-framework |
Apple App Store
|
Mobile |
Lucide Icons
|
UI library |
| Analytics & Marketing | |
Google Analytics
(4)
|
Analytics |
Google Search Console
|
SEO |
Google Tag Manager
(4)
|
Tag management |
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) |
| 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 not detected; analytics set tracking cookies on our visit with no opt-in step |
Mentions: Cookies, Do Not Sell
| robots.txt | |
| sitemap.xml 2 URLs | |
| security.txt optional | |
| llms.txt optional | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published not 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 p=none | Monitoring only (p=none) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | netcup-AS - netcup GmbH, DE AS197540, AT |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 2 Nov 2026 to 31 Jan 2027, as captured |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 19 JS files, 3 CSS files 3 third-party domains, code splitting |
| App manifest | Cardiffy - Digital Business Card display standalone; 4 icons; business, productivity, social |
| Brand colours |
Storage: 2 items
| Name | Lifetime | Set by |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_5Q87HE093H | 1y | Google Analytics |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 164 ms | good, faster than 67% of sites |
| Largest contentful paint | 696 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 1015 KB | fair |
| Image weight | 4 KB | light |
| Images | 3 | all sized and labelled |
| Third-party domains | 3 | |
| 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 palette signals +5 - Analytics set tracking cookies on our visit and no consent manager was detected. UK and EU GDPR require opt-in before tracking runs, and more than 20 US states require honouring opt-out requests.
- Performance comes from one render on 11 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 11 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.