Replyless - Best Superhuman Alternative
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Added April 27, 2026
· Last analysed April 27, 2026 · via 
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 27 April 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.
Replyless - Best Superhuman Alternative ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. What needs work: tracking cookies set before any opt-in and incomplete email security.
Launched on Product Hunt on April 27, 2026. The site is hosted on Hostinger and served through Cloudflare, with a domain registered 3 months before launch. Our crawler found 22 technologies on this site, covering security, analytics, email marketing, and hosting. The stack includes Tailwind CSS, Brevo, and Cloudflare.
It's also running the same core stack as 114 other launches and tighter on security headers than most Product Hunt launches.
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Tech Stack (22) · Indie stack
| CDN |
Cloudflare
|
| DNS |
Hostinger DNS
|
| Hosting |
Hostinger
|
Vercel
(3)
|
|
| Security |
Cloudflare Bot Management
|
Google reCAPTCHA
|
|
| HSTS (2) |
| Business email |
Google Workspace
(2)
|
| Email marketing |
Brevo
|
HubSpot
(3)
|
| BaaS |
Supabase
|
| CSS framework |
Tailwind CSS
|
| Developer tools |
Vite
|
| UI library |
shadcn/ui
|
| Video |
YouTube
|
| Analytics |
Google Analytics
(4)
|
PostHog
(5)
|
|
| SEO |
Google Search Console
|
RankInPublic
|
|
| Social |
Google Search
|
| Tag management |
Google Tag Manager
(4)
|
| Chat |
HubSpot Conversations
(4)
|
Infrastructure
Email Security
Storage (15)
| Name | Lifetime | Detected as |
|---|---|---|
| hubspotutk | 6mo | HubSpot |
| messagesUtk | 6mo | HubSpot Conversations |
| ph_phc_vhnWM3p2ZRJBhcRcQCCaVrAknrG2qrldIeGyPU7UiaV_posthog | 1y | PostHog |
| _cfuvid | session | Cloudflare |
| _ga | 1y | Google Analytics |
| _ga_SSPVR59SPV | 1y | Google Analytics |
| __cf_bm | < 1h | Cloudflare |
| __hssc | < 1h | HubSpot |
| __hssrc | session | HubSpot |
| __hstc | 6mo | HubSpot |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_vhnWM3p2ZRJBhcRcQCCaVrAknrG2qrldIeGyPU7UiaV_posthog | 2.8 KB | PostHog |
| theme | 5 B | - |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_vhnWM3p2ZRJBhcRcQCCaVrAknrG2qrldIeGyPU7UiaV_posthog | 388 B | PostHog |
| ph_phc_vhnWM3p2ZRJBhcRcQCCaVrAknrG2qrldIeGyPU7UiaV_primary_window_exists | 4 B | PostHog |
| ph_phc_vhnWM3p2ZRJBhcRcQCCaVrAknrG2qrldIeGyPU7UiaV_window_id | 38 B | PostHog |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette 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.