Last Seen Up
Last Seen Up watches your sites, servers and scheduled jobs around the clock. It double-checks every failure before it wakes anyone, then sends the alert straight to your phone.
Estimated origin: United States
Added August 22, 2026
· Last analysed August 22, 2026 · via 
· also on StackScope Discovery
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 22 August 2026; the live site may have changed since.
Last Seen Up looks production-ready overall, with complete legal pages, a thorough launch checklist, and well-configured email security. What needs work: missing several security headers.
Launched on Product Hunt on August 22, 2026. The site is served through Cloudflare, with a domain registered 2 weeks before launch. We've detected 14 technologies on this site, covering transactional email, ui library, CDN, and CSS frameworks. The stack includes Tailwind CSS, Amazon SES, and Apple App Store.
It's running the same core stack as 7,238 other launches.
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Tech Stack (14)
| CDN |
Cloudflare
(2)
|
| DNS |
Cloudflare DNS
|
| Security |
Cloudflare Bot Management
|
| Transactional email |
Amazon SES
(2)
|
Resend
|
| CSS framework |
Tailwind CSS
|
| Developer tools |
Vite
|
| JavaScript library |
Laravel Echo
medium
|
| Mobile |
Apple App Store
|
| Realtime |
Pusher
(2)
|
| UI library |
Lucide Icons
|
shadcn/ui
|
| SEO |
Google Search Console
|
| Directory |
Product Hunt
|
Infrastructure
Email Security
Storage (6)
| Name | Lifetime | Detected as |
|---|---|---|
| appearance | 12mo | - |
| last-seen-up-session | 2h | - |
| XSRF-TOKEN | 2h | - |
| __cf_bm | < 1h | Cloudflare |
| Key | Size | Detected as |
|---|---|---|
| appearance | 6 B | - |
| pusherTransportTLS | 77 B | Pusher |
Readiness Breakdown How?
Performance How?
⚠ 8 images: 3 oversized, 1 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 CSS signals | +10 |
| AI copy signals | +5 |
| AI writing 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.