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LANGR SEO

Instant free SEO audit. Check performance, accessibility, security and SEO scores. 29 modules, 290 checks, actionable fixes. No account needed.

Marketing

Added April 26, 2026 · Last analysed April 26, 2026 · via · 62% unique tagline

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 26 April 2026; the live site may have changed since.

LANGR SEO ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Worth fixing first: incomplete email security.

Launched on Product Hunt on April 26, 2026. The site is hosted on Vercel and served through Cloudflare. The crawl picked up 13 technologies on this site, covering analytics, CDN, CSS frameworks, and DNS providers. The stack includes Next.js, React, and Tailwind CSS.

For context, it's running the same core stack as 10,661 other launches and 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 →

10.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 40 · 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 (13) · Indie stack

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Hosting Vercel (3)
Protocol HTTP/3 (2)
Security HSTS (2)
Email
Email forwarding Cloudflare Email Routing (2)
Transactional email Resend (2)
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (3)
Analytics & Marketing
Analytics Google Analytics
SEO Google Search Console
Tag management Google Tag Manager

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 23 Apr 2026 to 22 Jul 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF -all Strict (-all). Strong.
DKIM Detected via known email provider
DMARC p=none None (p=none). Monitoring only.
?
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)

Vibe Score Breakdown How?

SignalPoints
AI palette signals +5
AI writing signals +5
AI iconography signals +5
AI stack signals +10
AI asset signals +10
AI layout 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
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (390 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/en/privacy
Terms of Service
/en/terms
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
92% unique

Security Headers (6/6)

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

Performance

369ms response time
Faster than 48% of sites
3 third-party domains loaded

Build

Code splitting
24 JS files
1 CSS files
3 Third-party domains

Brand Colours

App Manifest

LANGR SEO — Automated SEO Platform
display: standalone 2 icons
theme #0a0a0f
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.