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Bounceable

Verify email deliverability in real time. Bounceable detects disposable domains, catch-all and SMTP issues, and bounce risk — with a fast, simple REST API.

www.bounceable.io · Added June 10, 2026 · Last analysed June 10, 2026 · via · 60% 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 10 June 2026; the live site may have changed since.

Bounceable looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.

Launched on Product Hunt on June 10, 2026. The site is hosted on Amazon.com in the United States. We've detected 10 technologies on this site, covering CSS frameworks, DNS providers, business email, and transactional email. The stack includes Next.js, React, and Tailwind CSS.

It's on one of the most common stacks we track, shared by 7,155 launches.

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

Vibe Score 20 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (10) · Indie stack

Infrastructure
DNS Vercel DNS
Hosting Vercel
Security HSTS
Email
Business email Google Workspace (2)
Transactional email Resend
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (2)
UI library shadcn/ui
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS16509 · US
DNS
Vercel DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 6 Jun 2026 to 4 Sep 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
DKIM Detected via known email provider
DMARC p=none None (p=none). Monitoring only.
?
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.

Storage (0)

This site uses no client-side storage we could detect on page load.

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)
Page title is 68 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

Performance How?

1004 ms Server response
11% Faster than peers
748 ms Largest contentful paint
0.00 Cumulative layout shift
1.3 MB Page weight
929 KB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

6 images: 2 without width/height, 4 missing alt text

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?

SignalPoints
AI CSS signals +10
AI copy signals +5
AI writing 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.

AI Stance

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

sitemap.xml (4 URLs)
security.txt
llms.txt
ads.txt
humans.txt
86% unique

Security Headers (1/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

HTML minified
CSS minified
JS minified
Code splitting
23 JS files
2 CSS files
1 Third-party domains

App Manifest

Bounceable
display: standalone 2 icons
theme #ffffff
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.