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Parquet Viewer Online

Free online Parquet viewer. Open .parquet files, browse and search rows, inspect schema & metadata, and convert to CSV, JSON, or Excel — all in your browser, no upload.

Developer Tools

Added August 27, 2026 · Last analysed August 27, 2026 · via PeerPush

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Screenshot of Parquet Viewer Online

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

Parquet Viewer Online ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing X-Frame-Options and Content-Security-Policy, tracking cookies set before any opt-in, and incomplete email security.

Launched on PeerPush on August 27, 2026. The site is hosted on Hetzner Online GmbH in Germany, with a domain registered in 2025. Our crawler found 10 technologies on this site, covering analytics, developer tools, directory, and DNS providers. The stack includes Findly.tools, Google Analytics, and Google Tag Manager.

It's also tighter on security headers than most PeerPush launches.

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

9.1
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
4/6 Security Headers
Decent
3/3* Legal
Complete*
2/2 Crawl files
Complete
100/100 Performance
Fast
Vibe Score 10 · 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 (10)

Infrastructure
DNS Namecheap DNS
Security HSTS
Server nginx
Email
Business email PrivateEmail
Email forwarding Namecheap Email Forwarding (2)
Build & Framework
Developer tools Vite
JavaScript library TanStack Router
Analytics & Marketing
Analytics Google Analytics (4)
Tag management Google Tag Manager (3)
Other
Directory Findly.tools

Infrastructure

Network
HETZNER-AS - Hetzner Online GmbH, DE
AS24940 · DE
DNS
Namecheap DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 30 Jun 2026 to 28 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 year
Registered Aug 2025 · NAMECHEAP

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
?
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 (3)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_VZS6QR2H8W 1y Google Analytics
Local storage (1)
KeySizeDetected as
ga.first_tool.v1 4 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 75 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 168 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?

188 ms Server response
70% Faster than peers
780 ms Largest contentful paint
0.00 Cumulative layout shift
509 KB Page weight
6 KB Image weight
2 Third-party domains
0 Console errors
0 Failed requests

⚠ 2 images: 1 oversized, 1 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

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

Legal

✓ Privacy Policy
/privacy
✓ Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
92% unique
Mentions:
GDPR CCPA Cookies

Security Headers (4/6)

✓
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)

Build

2 JS files
2 CSS files
2 Third-party domains

Brand Colours

App Manifest

parquet.to — view & convert Parquet files
display: standalone 3 icons
theme #1F1B14
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.