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Luna Whale

교사를 위한 디지털 교실. 수업 자료, 시뮬레이션, 학습지와 무료 도구를 한곳에.

Education
South Korea Estimated origin: South Korea

Added June 29, 2026 · Last analysed June 29, 2026 · via · 67% 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 29 June 2026; the live site may have changed since.

Luna Whale looks production-ready overall, with a thorough launch checklist, fast page loads, and clean crawl signals. What needs work: missing several security headers, incomplete legal pages, and no email security records.

Launched on Product Hunt on June 29, 2026. The site is hosted on Firebase Hosting and served through Fastly. We've detected 7 technologies on this site, covering analytics, CDN, web fonts, and hosting. The stack includes Fastly, Firebase Hosting, and Google Fonts.

It's one of 85 launches on this exact stack.

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

Vibe Score 55 · Many 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
CDN Fastly
Hosting Firebase Hosting
Security HSTS
Build & Framework
Font Google Fonts
Package CDN jsDelivr
Analytics & Marketing
Analytics Naver Analytics
SEO Google Search Console

Infrastructure

Network
AS54113 · US
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
Google Trust Services
Valid 20 May 2026 to 18 Aug 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 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)

Local storage (4)
KeySizeDetected as
luna-lang 2 B -
luna_lesson_lang 2 B -
lw-landing-ver 26 B -
lw_lang 2 B -
Session storage (1)
KeySizeDetected as
lw-landing-refreshed 26 B -

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 81 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?

145 ms Server response
82% Faster than peers
592 ms Largest contentful paint
0.01 Cumulative layout shift
6.1 MB Page weight
3.8 MB Image weight
5 Third-party domains
0 Console errors
0 Failed requests

42 images: 21 oversized, 42 without width/height, 1 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 palette signals +5
AI writing signals +5
AI iconography signals +5
AI code-structure signals +5
AI CSS signals +15

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

robots.txt
sitemap.xml (28 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/pages/policy/terms-of-service.html
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
94% unique

Security Headers (1/6)

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

Build

1 JS files
4 CSS files
5 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.