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.

Developer Tools

Added April 21, 2026 · Last analysed April 21, 2026 · via

Own this Launch?

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 21 April 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.

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 305 launches.

If you own this site, refresh the snapshot and see the full fix list any time →

8.6

StackScope Score

Excellent

100/100 Launch Readiness

Launch ready

3/6 Security Headers

Decent

3/3* Legal

Complete*

2/2 Crawl files

Complete

Vibe Score 15 · Few AI signals

How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (7)

Infrastructure

Security	HSTS (2)
Server	nginx (2)

Build & Framework

CSS framework	Tailwind CSS
Framework	React

Analytics & Marketing

Analytics	Plausible (2)
Analytics	Yandex Metrica (3)
SEO	Google Search Console

Infrastructure

Network

HOSTKEY-AS, NL

AS57043 · AE

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Not green hosted

No green-energy record. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 17 Apr 2026 to 16 Jul 2026

Certificate as captured in this snapshot, not a live check.

Email Security

✓

SPF -all Strict (-all). Strong.

DKIM Not detected at common selectors. Your provider may use a custom one.

✓

DMARC p=quarantine Quarantine (moderate)

MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.

TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Readiness Breakdown How?

✓ Custom title and meta description

✓ Open Graph tags (title, image, description)

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Meta description is 230 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

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.

AI Stance

Welcomes AI crawlers

✓ llms.txt published

✓ No AI bots blocked in robots.txt

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (439 URLs)

✗ security.txt

✓ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy

✓ Terms of Service

/terms

? Consent manager not detected

Analytics set tracking cookies on our visit, with no opt-in step.

92% unique

Mentions:

Cookies Updated: 2026-04-17

Security Headers (3/6)

✗

Referrer-Policy

✓

X-Frame-Options

✗

Permissions-Policy experimental (check browser support)

✓

X-Content-Type-Options

✗

Content-Security-Policy

✓

Strict-Transport-Security

–

X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

246ms response time

Faster than 61% of sites

4 third-party domains loaded

Build

✓ Code splitting

10 JS files

1 CSS files

4 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.