Inbox Placement Test
Free inbox placement test: check whether your email lands in Inbox, Spam, or Promotions across Gmail, Outlook and Yahoo. Live results, SPF/DKIM/DMARC diagnostics, Rspamd + SpamAssassin verdicts, and an MCP-ready API for AI agents.
Added April 21, 2026
· Last analysed April 21, 2026 · via 
· 67% 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 21 April 2026; the live site may have changed since.
Inbox Placement Test scores highly overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Main gaps: missing several security headers.
Launched on Product Hunt on April 21, 2026. The site is hosted on HOSTKEY-AS in the United Arab Emirates. Our crawler found 7 technologies on this site, covering analytics, CSS frameworks, frameworks, and security. The stack includes React, Tailwind CSS, and Google Search Console.
It's also on one of the most common stacks we track, shared by 291 launches.
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Tech Stack (7)
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Analytics |
Plausible
(2)
|
Yandex Metrica
(3)
|
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI writing signals | +5 |
| 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.