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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.

www.calnudge.app · Added June 6, 2026 · Last analysed June 6, 2026 · via PeerPush · 71% 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 6 June 2026; the live site may have changed since.

CalNudge is partway there, with complete legal pages, a thorough launch checklist, and well-configured email security. What needs work: missing several security headers, no robots.txt, and analytics without a consent banner.

Launched on PeerPush on June 6, 2026. The site is hosted on Amazon.com in the United States, with a domain registered 11 weeks before launch. The crawl picked up 12 technologies on this site, covering analytics, auth, CDN, and DNS providers. The stack includes Auth.js, Next.js, and React.

For context, it's one of 47 launches on this exact stack.

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

Vibe Score 38 · Some AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (12)

Infrastructure
CDN Cloudflare
DNS GoDaddy DNS
Hosting Railway
Security Cloudflare Bot Management
Email
Business email Google Workspace
Transactional email SendGrid
Build & Framework
Auth Auth.js
Font Google Fonts
Framework React
Meta-framework Next.js
Analytics & Marketing
Analytics Google Analytics
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
2 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 (5)

Cookies (5)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_9B01DKF4ZN 1y Google Analytics
__cf_bm < 1h Cloudflare
__Host-authjs.csrf-token session Auth.js
__Secure-authjs.callback-url session Auth.js

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)

Performance How?

947 ms Server response
13% Faster than peers
1280 ms Largest contentful paint
0.01 Cumulative layout shift
1.6 MB Page weight
890 KB Image weight
6 Third-party domains
0 Console errors
0 Failed requests

6 images: 2 oversized, 5 without width/height, 2 missing alt text

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

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 (52 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
26% unique

Security Headers (0/6)

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

Build

HTML minified
CSS minified
JS minified
Code splitting
11 JS files
3 CSS files
6 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.