EmailGuard
Check and fix your business email authentication. Free MX, SPF, DKIM and DMARC checker. Get answers in 10 seconds.
Estimated origin: China
Added June 4, 2026
· Last analysed June 4, 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 4 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.
EmailGuard scores highly overall, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Visible gaps: incomplete email security.
Launched on Product Hunt on June 4, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 2 weeks before launch. We've detected 15 technologies on this site, covering payments, security, auth, and captcha. The stack includes Clerk, Next.js, and React.
It's on one of the most common stacks we track, shared by 14,964 launches and more locked down than the typical Product Hunt launch.
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Tech Stack (15) · Indie stack
| CDN |
Cloudflare
(2)
|
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Protocol | HTTP/3 |
| Security |
Cloudflare Bot Management
|
| HSTS |
| Business email |
Alibaba Mail
(2)
|
| Transactional email |
Resend
(2)
|
| Auth |
Clerk
(4)
|
| Captcha |
Cloudflare Turnstile
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
|
Infrastructure
Email Security
Storage (6)
| Name | Lifetime | Detected as |
|---|---|---|
| _cfuvid | session | Cloudflare |
| __cf_bm | < 1h | Cloudflare |
| __client | 1y | Clerk |
| __client_uat | 1y | Clerk |
| __client_uat_O9ENTTgH | 1y | Clerk |
| Key | Size | Detected as |
|---|---|---|
| __clerk_environment | 6.5 KB | Clerk |
Readiness Breakdown How?
Performance How?
⚠ 1 images: 1 oversized, 1 without width/height
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 stack signals | +10 |
| Unfilled template placeholders | +10 |
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.