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Nacre - AI Context Layer

Self-hosted retrieval for AI agents with fine-grained access control. Every agent and every person sees the cross-section they are cleared for — and not one line more.

Developer Tools

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

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Screenshot of Nacre - AI Context Layer

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.

Nacre - AI Context Layer is largely in shape, with a complete set of security headers, a thorough launch checklist, and well-configured email security. Worth fixing first: incomplete legal pages.

Launched on Product Hunt on August 27, 2026. The site is served through Cloudflare, with a domain registered 3 weeks before launch. The crawl picked up 8 technologies on this site, covering analytics, captcha, CDN, and DNS providers. The stack includes Cloudflare, Cloudflare DNS, and Cloudflare Email.

For context, it's tighter on security headers than most Product Hunt launches.

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

7.9
StackScope Score
Good
100/100 Launch Readiness
Launch ready
6/6 Security Headers
Strong
0/3 Legal
Missing
2/2 Crawl files
Complete
83/100 Performance
Fast
Vibe Score 25 · Some 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 (8)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Security HSTS
Email
Email forwarding Cloudflare Email Routing (2)
Transactional email Cloudflare Email
Build & Framework
Captcha Cloudflare Turnstile
Analytics & Marketing
Analytics Cloudflare Web Analytics
SEO Google Search Console

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
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 1 Aug 2026 to 31 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
26 days
Registered Aug 2026 · Cloudflare, Inc.

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
✓
DKIM Detected via known email provider
✓
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 292 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?

121 ms Server response
81% Faster than peers
2680 ms Largest contentful paint
0.00 Cumulative layout shift
84 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?

SignalPoints
AI palette signals +5
AI writing signals +5
AI CSS signals +15

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

Legal

? Privacy Policy not detected
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
Detection works best on English language sites.

Security Headers (6/6)

✓
Referrer-Policy
✓
X-Frame-Options via CSP frame-ancestors
✓
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

1 JS files
3 CSS files
1 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.