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Markdown Viewer for Mac Finder

Render Markdown in macOS Quick Look — just press spacebar in Finder.

Productivity

Added June 12, 2026 · Last analysed June 12, 2026 · via Hacker News

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Screenshot of Markdown Viewer for Mac Finder

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

Markdown Viewer for Mac Finder still has work before launch. Worth fixing first: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on June 12, 2026. The site is hosted on GitHub Pages and served through Fastly, with a domain registered 1 week before launch. The crawl picked up 4 technologies on this site, covering ai agent, CDN, DNS providers, and hosting. The stack includes Devin, Fastly, and GitHub Pages.

For context, it's running the same core stack as 2,451 other launches.

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

2.0
StackScope Score
Poor
70/100 Launch Readiness
Well prepared
0/6 Security Headers
Poor
0/3 Legal
Missing
0/2 Crawl files
Missing
70/100 Performance
Fast
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 (4)

Infrastructure
CDN Fastly
DNS Vercel DNS
Hosting GitHub Pages
AI & Emerging
AI agent Devin

Infrastructure

Network
FASTLY - Fastly, Inc., US
AS54113 · US
DNS
Vercel DNS
Authoritative nameserver
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
Let's Encrypt
Valid 3 Jun 2026 to 1 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
2 months
Registered Jun 2026 · Name.com, Inc.

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 (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)
✓ Responsive viewport meta tag
✓ Favicon present
⚠
Meta description is 161 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.
- Canonical URL declared
- Twitter card meta tags
- Semantic HTML (nav, main, article)

Performance How?

153 ms Server response
70% Faster than peers
608 ms Largest contentful paint
0.07 Cumulative layout shift
3.2 MB Page weight
3.2 MB Image weight
0 Console errors
0 Failed requests

⚠ 4 images: 2 oversized, 4 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 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

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
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (0/6)

✗
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

0 JS files
1 CSS files
0 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.