← Back to browse

HeroBounce

Email verification that goes beyond unknown. Resolves catch-all domains and greylisted servers - recovering 30-40% of leads other tools discard.

Marketing

Added April 8, 2026 · Last analysed April 10, 2026 · via · 60% unique tagline

Own this Launch?
Screenshot of HeroBounce

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 April 2026; the live site may have changed since.

HeroBounce ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist.

Launched on Product Hunt on April 8, 2026. The site is hosted on This is the joint network for IONOS in Germany, with a domain registered 3 months before launch. The crawl picked up 16 technologies on this site, covering email marketing, transactional email, advertising, and analytics. The stack includes Next.js, React, and Tailwind CSS.

For context, it's running the same core stack as 3,884 other launches and tighter on security headers than most Product Hunt launches.

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

10.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
6/6 Security Headers
Strong
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 5 · 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 (16)

Infrastructure
DNS IONOS DNS
Security HSTS (2)
Server nginx (2)
Email
Email marketing Brevo
SendPulse
Transactional email Amazon SES
Resend
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (5)
Analytics & Marketing
Advertising Google Ads
Analytics Google Analytics (2)
SEO Google Search Console
Social Google Search
Tag management Google Tag Manager
Commerce & Payments
Payments Stripe

Infrastructure

Network
IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE., DE
AS8560 · DE
DNS
IONOS DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 24 Feb 2026 to 25 May 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
7 months
Registered Dec 2025 · Arsys Internet, S.L. dba NICLINE.COM

Email Security

✓
SPF -all Strict (-all). Strong.
✓
DKIM Detected via known email provider
✓
DMARC p=reject Reject (strict). Strong.
?
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 170 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?

SignalPoints
AI palette 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

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 (43 URLs)
✗ security.txt
✓ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy
✓ Terms of Service
/terms
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
88% unique
Mentions:
GDPR Cookies Data Controller DPO Updated: April 1, 2026

Security Headers (6/6)

✓
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

236ms response time
Faster than 66% of sites
2 third-party domains loaded

Build

✓ Code splitting
8 JS files
1 CSS files
2 Third-party domains
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.