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InboxSure

Fast, accurate email verification for marketers, devs, and platforms.

www.inboxsure.io · Added April 8, 2026 · Last analysed April 10, 2026· via Product Hunt

Screenshot of InboxSure
This analysis is a snapshot taken on 10 April 2026. The site may have changed since then and results may not reflect its current state.
6.2
StackScope Score
Good
35/100 Vibe Score
Some AI signals
82/100 Launch Readiness
Well prepared
1/6 Security Headers
Poor
neutral
AI Stance
No AI stance declared

Tech Stack (9)

Infrastructure
Cloudflare DNS DNS ns_host
HSTS Security http_header_name
Vercel Hosting http_header_name
Email
Cloudflare Email Routing Business email mx_host spf_include
Build & Framework
Next.js Meta-framework http_header_name meta_name script_src
React Framework structural_signal
shadcn/ui Ui library structural_signal
Tailwind CSS CSS framework structural_signal
Analytics & Marketing
Vercel Analytics Analytics script_src

Infrastructure

Hosting
AS16509 · US
SSL Certificate
Let's Encrypt
Expires 3 Jun 2026

Readiness Breakdown How?

✓ Favicon present
✓ Open Graph tags (title, image, description)
✓ Responsive viewport meta tag
✓ Custom title and meta description
✓ Twitter card meta tags
✓ Semantic HTML (nav, main, article)
✓ Privacy policy page present
- Canonical URL declared
- Source maps not exposed in production
- Error tracking service installed

Vibe Score Breakdown How?

SignalPoints
Conventional call-to-action copy +5
Conventional onboarding section +5
Conventional AI tooling combination +10
Conventional landing-page layout +5
Default scaffold artefact +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.

Well-Known Files

✗ robots.txt
✗ llms.txt
✗ security.txt
✗ sitemap.xml
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
✓ Terms of Service
88% unique
Mentions:
GDPR Cookies

Security Headers (1/6)

✗ Referrer-Policy
✗ X-Frame-Options
✗ Permissions-Policy
✗ X-Content-Type-Options
✗ Content-Security-Policy
✓ Strict-Transport-Security
– X-XSS-Protection (legacy)

Performance

511ms response time
Faster than 33% of sites

Build

✓ HTML minified
15 JS files
0 Third-party domains
Is this your site? 6 tips to improve your score
- Add a robots.txt file to control how search engines and bots crawl your site. Learn more
- Add a sitemap.xml to help search engines discover all your pages. Learn more
- Add a /.well-known/security.txt so security researchers can reach you. Learn more
- Consider adding a llms.txt file to help AI models understand your site. Not yet a standard, but gaining adoption. Learn more
- Improve your security headers. Scan your site at securityheaders.com to see what's missing.
- Add a <link rel="canonical"> tag to prevent duplicate content issues. Learn more
Embed this score on your site
StackScope Score 
<a href="https://stackscope.dev/launch/qaa1etz8/inboxsure"><img src="https://stackscope.dev/badge/qaa1etz8.svg" alt="StackScope Score" height="28" /></a>