Kalendar
Now smarter and AI enabled
Added July 16, 2026
· Last analysed July 16, 2026 · via 
· 67% 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 16 July 2026; the live site may have changed since.
Kalendar is early-stage. Visible gaps: missing several security headers, no robots.txt or sitemap, and tracking cookies set before any opt-in.
Launched on Product Hunt on July 16, 2026. The site is served through Cloudflare, with a domain registered 6 months before launch. We've detected 24 technologies on this site, covering advertising, analytics, seo, and CDN. The stack includes Svelte, SvelteKit, and Tailwind CSS.
It's one of 41 launches on this exact stack.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (24) · Scale-up stack
| CDN |
Cloudflare
|
| DNS |
AWS Route 53
|
| OS |
Ubuntu
|
| Security |
Cloudflare Bot Management
|
| Server |
nginx
|
| Business email |
Google Workspace
(2)
|
| Email marketing |
Customer.io
|
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
| Framework |
Svelte
|
| Meta-framework |
SvelteKit
(3)
|
| Advertising |
Facebook Pixel
(3)
|
Google Ads
(2)
|
|
X (Twitter) Ads
(3)
|
|
| Analytics |
Google Analytics
(4)
|
PostHog
(5)
|
|
Segment
(3)
|
|
| Publishing |
Gist
(2)
|
| SEO |
Google Search Console
|
LinkedIn
(3)
|
|
| Social |
Twitter Widgets
|
| Tag management |
Google Tag Manager
(4)
|
| Chat |
Intercom
|
| Directory |
Product Hunt
|
Infrastructure
Email Security
Storage (28)
| Name | Lifetime | Detected as |
|---|---|---|
| ajs_anonymous_id | 12mo | Segment |
| bcookie | 12mo | |
| guest_id | 1y | X (Twitter) Ads |
| guest_id_ads | 1y | X (Twitter) Ads |
| guest_id_marketing | 1y | X (Twitter) Ads |
| lidc | 23h | |
| li_gc | 5mo | |
| muc_ads | 1y | X (Twitter) Ads |
| personalization_id | 1y | X (Twitter) Ads |
| ph_phc_wHpgetTNwN8nAqk5PQWF89F9HFFoSjRApF8sZiXepHpc_posthog | 12mo | PostHog |
| _fbp | 2mo | Facebook Pixel |
| _ga | 1y | Google Analytics |
| _ga_F4L3XC1Z6N | 1y | Google Analytics |
| _gcl_au | 2mo | Google Ads |
| _twpid | 1y | X (Twitter) Ads |
| __cf_bm | < 1h | Cloudflare |
| Key | Size | Detected as |
|---|---|---|
| ajs_anonymous_id | 38 B | Segment |
| ajs_user_id | 4 B | Segment |
| gist.web.customAttributes | 107 B | Gist |
| gist.web.userQueueUseSSE | 51 B | Gist |
| lastExternalReferrer | 5 B | - |
| lastExternalReferrerTime | 13 B | - |
| ph_phc_wHpgetTNwN8nAqk5PQWF89F9HFFoSjRApF8sZiXepHpc_posthog | 1.4 KB | PostHog |
| _gcl_ls | 277 B | Google Ads |
| Key | Size | Detected as |
|---|---|---|
| gist.web.isPersistingSession | 4 B | Gist |
| ph_phc_wHpgetTNwN8nAqk5PQWF89F9HFFoSjRApF8sZiXepHpc_posthog | 388 B | PostHog |
| ph_phc_wHpgetTNwN8nAqk5PQWF89F9HFFoSjRApF8sZiXepHpc_primary_window_exists | 4 B | PostHog |
| ph_phc_wHpgetTNwN8nAqk5PQWF89F9HFFoSjRApF8sZiXepHpc_window_id | 38 B | PostHog |
Readiness Breakdown How?
Performance How?
⚠ 13 images: 7 oversized, 10 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?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI layout 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.