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Catio

Catio is the Architecture IDE — helping teams understand systems, make decision-grade architecture choices, turn them into executable designs, and keep implementation aligned as systems evolve.

Developer Tools
United States Estimated origin: United States

Added May 20, 2026 · Last analysed May 20, 2026 · via Hacker News

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 20 May 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.

Catio is largely in shape, with complete legal pages, a thorough launch checklist, and fast page loads. Worth fixing first: missing several security headers, no robots.txt or sitemap, and incomplete email security.

Launched on Hacker News on May 20, 2026. The site is served through Cloudflare. The crawl picked up 19 technologies on this site, covering analytics, consent tooling, package cdn, and security. The stack includes CookieYes, Google, and Amplitude.

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

6.1
StackScope Score
Good
88/100 Launch Readiness
Launch ready
3/3 Legal
Complete
0/2 Crawl files
Missing
Vibe Score 20 · Few 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 (19) · Scale-up stack

Infrastructure
CDN Cloudflare (2)
DNS Google Domains DNS
Protocol HTTP/3
Security Cloudflare Bot Management
HSTS
Email
Business email Google Workspace (3)
Email marketing HubSpot
Build & Framework
Font Google Fonts
Package CDN Google Hosted Libraries
jsDelivr
Site builder Webflow (3)
Analytics & Marketing
Advertising Google Ads
Analytics Amplitude (4)
Google Analytics
Segment (3)
Consent CookieYes (2)
Google
SEO Google Search Console
Tag management Google Tag Manager

Infrastructure

DNS
Google Domains DNS
Authoritative nameserver
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Google Trust Services
Valid 7 May 2026 to 5 Aug 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=none None (p=none). Monitoring only.
?
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.

Storage (13)

Cookies (5)
NameLifetimeDetected as
ajs_anonymous_id 12mo Segment
AMP_c3dc4a7861 12mo Amplitude
cookieyes-consent 12mo CookieYes
_cfuvid session Cloudflare
__cf_bm < 1h Cloudflare
Local storage (6)
KeySizeDetected as
ajs_anonymous_id 38 B Segment
ajs_user_id 4 B Segment
AMP_remote_config_c3dc4a7861 200 B Amplitude
EXP_c3dc4a7861 53 B -
EXP_c3dc4a7861_DEFAULT_USER_PROVIDER 31 B -
EXP_unsent_$default_instance 2 B -
Session storage (1)
KeySizeDetected as
EXP_c3dc4a7861_DEFAULT_USER_PROVIDER 40 B -
IndexedDB (1)
DatabaseVersionDetected as
AMP_diagnostics_c3dc4a7861 1 Amplitude

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Twitter card meta tags
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
Meta description is 193 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.
- Canonical URL declared

Vibe Score Breakdown How?

SignalPoints
AI copy signals +5
AI onboarding signals +5
AI palette signals +5
AI writing signals +5

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
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy-policy
Terms of Service
/terms-of-service
Consent manager: CookieYes
Generated by Notion
78% unique

Security Headers (3/6)

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

Performance

127ms response time
Faster than 81% of sites
9 third-party domains loaded

Build

Code splitting
11 JS files
2 CSS files
9 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.