Email warmup calculator
Free email warmup calculator that checks your domain instead of asking. Reads live SPF, DKIM and DMARC, finds its registration date, and scores it A to F.
Added July 17, 2026
· Last analysed July 17, 2026 · via 
· 71% 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 17 July 2026; the live site may have changed since.
Email warmup calculator has the basics covered well, with a thorough launch checklist and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and tracking cookies set before any opt-in.
Launched on Product Hunt on July 17, 2026. The site is served through Cloudflare, with a domain registered 6 months before launch. Our crawler found 11 technologies on this site, covering advertising, analytics, servers, and CDN. The stack includes Cloudflare, Cloudflare DNS, and Google Ads.
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Tech Stack (11)
| CDN |
Cloudflare
(2)
|
| DNS |
Cloudflare DNS
|
| Server |
LiteSpeed Web Server
|
PHP
|
| Font |
Google Fonts
|
| Advertising |
Google Ads
|
Google AdSense
(2)
|
|
| Analytics |
Google Analytics
(4)
|
Microsoft Clarity
(2)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
medium
|
Infrastructure
Email Security
Storage (4)
| Name | Lifetime | Detected as |
|---|---|---|
| cf_clearance | 1y | Cloudflare |
| FCCDCF | 1y | - |
| _ga | 1y | Google Analytics |
| _ga_JB42KHXJ8K | 1y | Google Analytics |
Readiness Breakdown How?
Performance How?
⚠ 2 images: 2 oversized
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 typography 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.