← Back to browse

Ducklake

We implemented DuckLake for Apache DataFusion, supporting multiple databases as catalog backends. The integration gives DataFusion a lakehouse format that manages snapshots and catalog metadata for Parquet files stored in object storage. Our implementation is running in production, and we have open-...

Developer Tools

Added August 27, 2026 · Last analysed August 27, 2026 · via Hacker News

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.

Ducklake ships with the basics, with a thorough launch checklist, well-configured email security, and clean crawl signals. Main gaps: missing several security headers and incomplete legal pages.

Launched on Hacker News on August 27, 2026. The site is served through Cloudflare, with a domain registered in 2025. We've detected 7 technologies on this site, covering javascript library, CDN, DNS providers, and meta-frameworks. The stack includes Jekyll, Cloudflare, and Cloudflare DNS.

It's one of just 11 launches we've crawled on this exact stack.

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

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 (7)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Build & Framework
JavaScript library Isotope
jQuery
Masonry
Meta-framework Jekyll

Infrastructure

Network
AS13335 · US
DNS
Cloudflare 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
Google Trust Services
Valid 8 Aug 2026 to 6 Nov 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 year
Registered Apr 2025 · Cloudflare, Inc.

Email Security

SPF -all Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
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.

Storage (0)

This site uses no client-side storage we could detect on page load.

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 369 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?

210 ms Server response
61% Faster than peers
492 ms Largest contentful paint
0.18 Cumulative layout shift
315 KB Page weight
62 KB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

6 images: 3 oversized, 6 without width/height

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

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

robots.txt
sitemap.xml (338 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (2/6)

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

Build

Code splitting
6 JS files
1 CSS files
1 Third-party domains

Brand Colours

App Manifest

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