Lumli

Advanced 100% offline & in-browser image studio. Remove objects, erase backgrounds, resize, compress and convert images (HEIC, AVIF, PNG, JPG, WebP), upscale photos, render SVG to image and generate custom QR codes. Private, fast and fully local in your browser.

Design

www.lumli.de · Added June 24, 2026 · Last analysed June 24, 2026 · via Hacker News · 50% unique tagline

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 24 June 2026; the live site may have changed since.

Lumli looks production-ready overall, with a thorough launch checklist, fast page loads, and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Hacker News on June 24, 2026. The site is hosted on Amazon.com in the United States. We've detected 9 technologies on this site, covering CSS frameworks, DNS providers, email forwarding, and frameworks. The stack includes Next.js, React, and Tailwind CSS.

It's running the same core stack as 8,456 other launches.

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

7.6

StackScope Score

Good

100/100 Launch Readiness

Launch ready

3/6 Security Headers

Decent

2/3 Legal

Partial

2/2 Web Standards

Complete

100/100 Performance

Fast

Vibe Score 15 · Few AI signals

Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (9)

Infrastructure

DNS	Namecheap DNS
Hosting	Vercel
Security	HSTS

Email forwarding	ImprovMX

Build & Framework

CSS framework	Tailwind CSS
Framework	React
JavaScript library	Workbox
Meta-framework	Next.js (5)

Analytics & Marketing

SEO	Google Search Console

Infrastructure

Network

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

AS16509 · US

DNS

Namecheap DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Let's Encrypt

Valid 8 Jun 2026 to 6 Sep 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 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 (1)

Cache storage (1)

Cache name	Detected as
start-url	-

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 262 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?

80 ms Server response

97% Faster than peers

374 ms Largest contentful paint

0.00 Cumulative layout shift

508 KB Page weight

1 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?

Signal	Points
AI palette 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

No AI stance declared

✗ 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 (25 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

? Terms of Service not detected

36% unique

Security Headers (3/6)

✗

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

✓ Code splitting

14 JS files

2 CSS files

1 Third-party domains

Brand Colours

App Manifest

Lumli - Effortless Image Tools

display: standalone 4 icons

theme #09090b

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.