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penguen.io

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Added April 4, 2026 · Last analysed April 10, 2026 · via

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 10 April 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

penguen.io ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: no Permissions-Policy and incomplete email security.

Launched on Product Hunt on April 4, 2026. The site is served through Cloudflare. Our crawler found 16 technologies on this site, covering analytics, auth, captcha, and CDN. The stack includes Apple Sign In, Astro, and Google Sign-In.

It's also running the same core stack as 839 other launches and tighter on security headers than most Product Hunt launches.

If you own this site, refresh the snapshot and see the full fix list any time →

9.5
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 55 · Many AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (16)

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Security HSTS (2)
Email
Email forwarding Cloudflare Email Routing (2)
Transactional email Resend
Build & Framework
Auth Apple Sign In
Google Sign-In
Captcha Cloudflare Turnstile
CSS framework Tailwind CSS
Font Google Fonts
Meta-framework Astro (3)
Analytics & Marketing
Analytics Cloudflare Web Analytics
Google Analytics
SEO Google Search Console
Tag management Google Tag Manager

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC Not published. Receivers fall back to permissive defaults.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Readiness Breakdown How?

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)
Meta description is 175 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Vibe Score Breakdown How?

SignalPoints
Placeholder branding +10
AI writing signals +5
AI code-structure signals +20
AI layout signals +5
AI CSS signals +15

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (738 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/en/privacy-policy
Terms of Service
/en/terms-of-services
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
90% unique

Security Headers (5/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

445ms response time
Faster than 38% of sites
5 third-party domains loaded

Build

Code splitting
5 JS files
3 CSS files
5 Third-party domains
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.