CobaltPDF
CobaltPDF is a modern C# HTML to PDF library for .NET. Chromium rendering with full CSS and JavaScript support, browser pooling, and free unlimited evaluation.
Estimated origin: United Kingdom
Added June 2, 2026
· Last analysed June 2, 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 2 June 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.
CobaltPDF looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing several security headers and incomplete email security.
Launched on Product Hunt on June 2, 2026. The site is hosted on Microsoft Corporation in the United States, with a domain registered 3 months before launch. We've detected 14 technologies on this site, covering package cdn, analytics, chat widgets, and consent tooling. The stack includes Bootstrap, Google, and Azure DNS.
It's on one of the most common stacks we track, shared by 613 launches.
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Tech Stack (14)
| Business email |
Zoho Mail
(2)
|
| CSS framework |
Bootstrap
|
| Font |
Google Fonts
|
| Package CDN |
cdnjs
|
jsDelivr
|
|
unpkg
|
| Analytics |
Google Analytics
(2)
|
| Consent |
Google
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (4)
| Name | Lifetime | Detected as |
|---|---|---|
| TawkConnectionTime | session | Tawk.to |
| twk_idm_key | session | Tawk.to |
| _ga | 1y | Google Analytics |
| _ga_YMM1QNRFSR | 1y | Google Analytics |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI code-structure signals | +5 |
| AI layout signals | +5 |
| 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.