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CalNudge

Stop chasing RSVPs. CalNudge automatically reminds meeting attendees who haven't responded to your calendar invitations. 30-day free trial.

Productivity
United States Estimated origin: United States

Added April 30, 2026 · Last analysed April 30, 2026 · via · also on PeerPush · 75% unique tagline

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 30 April 2026; the live site may have changed since.

CalNudge covers some of the launch checklist, with complete legal pages, a thorough launch checklist, and well-configured email security. Worth fixing first: missing several security headers, no robots.txt, and tracking cookies set before any opt-in.

Launched on Product Hunt on April 30, 2026. The site is hosted on Railway, with a domain registered 5 weeks before launch. Our crawler found 10 technologies on this site, covering analytics, auth, DNS providers, and business email. The stack includes Auth.js, Next.js, and React.

It's also one of 82 launches on this exact stack.

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

5.8
StackScope Score
Fair
90/100 Launch Readiness
Launch ready
3/3* Legal
Complete*
1/2 Crawl files
Partial
Vibe Score 38 · Some 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 (10)

Infrastructure
DNS GoDaddy DNS
Hosting Railway (3)
Email
Business email Google Workspace (2)
Transactional email SendGrid
Build & Framework
Auth Auth.js
Font Google Fonts
Framework React
Meta-framework Next.js (2)
Analytics & Marketing
Analytics Google Analytics (3)
SEO Google Search Console

Infrastructure

Network
AS16509 · US
DNS
GoDaddy DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
GoDaddy.com
Valid 21 Mar 2026 to 5 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3 months
Registered Mar 2026 · GoDaddy.com, LLC

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=quarantine Quarantine (moderate)
?
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 (4)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_9B01DKF4ZN 1y Google Analytics
__Host-authjs.csrf-token session Auth.js
__Secure-authjs.callback-url session Auth.js
Local storage (2)
KeySizeDetected as
cn_promo 11 B -
cn_promo_expiry 13 B -

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description) (partial) missing og:image
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 writing signals +5
AI iconography signals +3
AI layout signals +10
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

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 (41 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
88% unique

Security Headers (0/6)

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

Performance

765ms response time
Faster than 18% of sites
5 third-party domains loaded

Build

Code splitting
11 JS files
3 CSS files
5 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.