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Mark

An open instrument for studying statistical text watermarks without changing the words you can see.

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

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Screenshot of Mark

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.

Mark is partway there, with fast page loads. Main gaps: missing several security headers, incomplete legal pages, and no sitemap.

Launched on Hacker News on August 27, 2026. The site is served through Cloudflare. The crawl picked up 2 technologies on this site, covering CDN and web fonts. The stack includes Cloudflare and Google Fonts.

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

4.1
StackScope Score
Fair
72/100 Launch Readiness
Well prepared
2/6 Security Headers
Weak
0/3 Legal
Missing
1/2 Crawl files
Partial
100/100 Performance
Fast
Vibe Score 3 · 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 (2)

Infrastructure
CDN Cloudflare
Build & Framework
Font Google Fonts

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
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 20 Aug 2026 to 18 Nov 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✓
SPF ~all (via apex q1z.org) 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 (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) (partial) missing og:image
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
- Canonical URL declared
- Twitter card meta tags

Performance How?

145 ms Server response
81% Faster than peers
736 ms Largest contentful paint
0.00 Cumulative layout shift
74 KB Page weight
2 Third-party domains
0 Console errors
0 Failed requests

⚠ 2 images: 2 oversized, 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 writing signals +3

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

Blocks AI crawlers
✗ llms.txt published
✗ 9 AI bots blocked in robots.txt
Content-Signal
✗ ai-train = no
✓ search = yes
? ai-input (not 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 (2/6)

✓
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
2 Third-party domains

Brand Colours

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