Snapshots: Jul 22 discovery May 26 launch 8.5

← Back to browse

OpenCap.dev

CLI-first capture. MCP-ready. Pixels paired with a structured event log, one share link the agent can paste into a PR.

Added May 26, 2026 · Last analysed May 26, 2026 · via · also on StackScope Discovery

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 26 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.

OpenCap.dev ships with the launch fundamentals in place, with a thorough launch checklist and clean crawl signals. Worth fixing first: no Permissions-Policy, incomplete legal pages, and no email security records.

Launched on Product Hunt on May 26, 2026. The site is hosted on AWS S3 and served through AWS CloudFront, with a domain registered 3 days before launch. We've detected 18 technologies on this site, covering advertising, CDN, security, and analytics. The stack includes Clerk, Tailwind CSS, and Amazon Web Services.

It's running the same core stack as 307 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 →

8.5
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
2/3 Legal
Partial
2/2 Crawl files
Complete
Vibe Score 13 · 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 (18) · Scale-up stack

Email
Transactional email Resend
Build & Framework
Auth Clerk (3)
CSS framework Tailwind CSS
Developer tools Vite
Font Google Fonts
Analytics & Marketing
Advertising Facebook Pixel
Google Ads
Analytics Microsoft Clarity
SEO LinkedIn
Social Facebook
Tag management Google Tag Manager

Infrastructure

Network
AS16509 · US
DNS
AWS Route 53
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Amazon
Valid 22 May 2026 to 5 Dec 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3 months
Registered May 2026 · GoDaddy.com, LLC

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
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.

Storage (6)

Cookies (5)
NameLifetimeDetected as
_cfuvid session Cloudflare
__cf_bm < 1h Cloudflare
__client 1y Clerk
__client_uat 1y Clerk
__client_uat_rxdgrfwj 1y Clerk
Local storage (1)
KeySizeDetected as
__clerk_environment 6.5 KB Clerk

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)

Vibe Score Breakdown How?

SignalPoints
AI copy signals +5
AI palette signals +5
AI writing signals +3

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

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

Well-Known Files

robots.txt
sitemap.xml (15 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
? Terms of Service not detected
? 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

415ms response time
Faster than 38% of sites
4 third-party domains loaded

Build

1 JS files
2 CSS files
4 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.