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Mermaid Online

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mermaidonline.org · Added June 10, 2026 · Last analysed June 10, 2026 · via · 75% 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.

Mermaid Online scores well across the board, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Main gaps: analytics without a consent banner.

Launched on Product Hunt on June 10, 2026. The site is hosted on Cloudflare in the United States. The crawl picked up 14 technologies on this site, covering analytics, CDN, CSS frameworks, and DNS providers. The stack includes Next.js, React, and Tailwind CSS.

For context, it's on one of the most common stacks we track, shared by 2,434 launches and more locked down than the typical Product Hunt launch.

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
3/3* Legal
Complete*
2/2 Web Standards
Complete
Vibe Score 10 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (14)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Security HSTS
Email
Business email Cloudflare Email Routing (2)
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js
Analytics & Marketing
Analytics Ahrefs
Cloudflare Web Analytics
Google Analytics (5)
Plausible (3)
SEO Google Search Console
Tag management Google Tag Manager (2)

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 27 May 2026 to 25 Aug 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=quarantine Quarantine (moderate)
?
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 (2)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_MKYQJDTSCD 1y Google Analytics

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)

Performance How?

182 ms Server response
74% Faster than peers
1264 ms Largest contentful paint
0.00 Cumulative layout shift
700 KB Page weight
4 Third-party domains
0 Console errors
0 Failed requests

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

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
? No directive declared
? None advertised

Well-Known Files

sitemap.xml (27 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
90% unique

Security Headers (6/6)

Permissions-Policy experimental (check browser support)
Content-Security-Policy ⚠ CSP violation detected: your policy is blocking 1 of your own resource
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

HTML minified
CSS minified
JS minified
Code splitting
28 JS files
1 CSS files
4 Third-party domains

Brand Colours

App Manifest

Mermaid Online
display: standalone 3 icons
theme #2EC4B6
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.