Coral eSIM

Coral eSIM is a global travel eSIM covering 180+ countries and regions. Instant activation via QR code and affordable plans. Every 1GB used supports coral reef restoration.

Estimated origin: Japan

Added August 13, 2026 · Last analysed August 13, 2026 · via

Own this Launch?

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 13 August 2026; the live site may have changed since.

Coral eSIM ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. What needs work: tracking cookies set before any opt-in and incomplete email security.

Launched on Product Hunt on August 13, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 10 months before launch. The crawl picked up 24 technologies on this site, covering auth, payments, security, and analytics. The stack includes Apple Sign In, Google Identity Platform, and Google Sign-In.

For context, it's running the same core stack as 13,055 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

79/100 Performance

Fast

Vibe Score 20 · 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 (24) · Indie stack

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS
Hosting	Vercel
Security	Cloudflare Bot Management
Security	HSTS

Business email	Zoho Mail (2)

Build & Framework

Auth	Apple Sign In
	Google Identity Platform
	Google Sign-In
BaaS	Firebase
CSS framework	Tailwind CSS
Framework	React
Meta-framework	Next.js (5)
Realtime	Pusher
UI library	shadcn/ui

Analytics & Marketing

Analytics	Google Analytics (5)
SEO	Google Search Console (2)
Social	Google Search
Tag management	Google Tag Manager (5)

Commerce & Payments

Payments	Google Pay
	Stripe

Business Tools

Collaboration	Vercel Live
SaaS	Zoho

Other

Directory	Product Hunt

Infrastructure

Network

AMAZON-02 - Amazon.com, Inc., US

AS16509 · US

DNS

Cloudflare DNS

Authoritative nameserver

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 12 Jun 2026 to 10 Sep 2026

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

Domain Age

10 months

Registered Sep 2025 · Cloudflare, Inc.

Email Security

✓

SPF -all Strict (-all). Strong.

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

✗

DMARC Not published. Receivers fall back to permissive defaults.

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 (5)

Cookies (5)

Name	Lifetime	Detected as
NEXT_LOCALE	session	-
_ga	1y	Google Analytics
_ga_1BKR2QKYTS	1y	Google Analytics
_ga_4FZB5WPGZP	1y	Google Analytics
__cf_bm	< 1h	Cloudflare

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

⚠

Meta description is 172 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.

Performance How?

810 ms Server response

15% Faster than peers

944 ms Largest contentful paint

0.00 Cumulative layout shift

4.5 MB Page weight

171 KB Image weight

3 Third-party domains

1 Console errors

1 Failed requests

⚠ 41 images: 17 oversized, 3 without width/height, 18 missing alt text

Broken first-party requests (1), worth fixing

401 /users/me

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?

Signal	Points
AI palette signals	+5
AI writing signals	+5
AI stack signals	+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 (1095 URLs)

✗ security.txt

✓ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/en/legal/privacy-policy

✓ Terms of Service

/en/legal/terms-of-service

? Consent manager not detected

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

90% unique

Mentions:

Cookies Updated: December 1, 2025

Security Headers (6/6)

✓

Referrer-Policy

✓

X-Frame-Options

✓

Permissions-Policy experimental (check browser support)

✓

X-Content-Type-Options

✓

Content-Security-Policy ⚠ CSP violation detected: your policy is blocking 1 of your own resource

✓

Strict-Transport-Security

–

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

Build

✓ Code splitting

24 JS files

1 CSS files

3 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.