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Stemio

Socratic AI tutor for math, stats, physics, chemistry, and electronics. Work on a whiteboard, get nudges — never just answers.

stemio.ai · Added June 15, 2026 · Last analysed June 15, 2026 · via · 83% 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 15 June 2026; the live site may have changed since.

Stemio is missing several launch fundamentals. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Product Hunt on June 15, 2026. The site is hosted on Amazon.com in the United States, with a domain registered 6 weeks before launch. Our crawler found 9 technologies on this site, covering analytics, DNS providers, business email, and transactional email. The stack includes Next.js, React, and Cloudflare DNS.

Notably, it's on one of the most common stacks we track, shared by 1,494 launches.

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

Vibe Score 15 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (9) · Indie stack

Infrastructure
DNS Cloudflare DNS
Hosting Vercel
Security HSTS
Email
Business email Cloudflare Email Routing (2)
Transactional email Resend
Build & Framework
Framework React
Meta-framework Next.js (2)
Analytics & Marketing
Analytics Mixpanel (3)
SEO Google Search Console

Infrastructure

Network
AS16509 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 11 May 2026 to 9 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered Apr 2026 · Cloudflare, Inc

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
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 (4)

Local storage (1)
KeySizeDetected as
mp_2f67015cf0e768be947599dde6845583_mixpanel 329 B Mixpanel
Session storage (2)
KeySizeDetected as
mp_gen_new_tab_id_mixpanel_2f67015cf0e768be947599dde6845583 1 B Mixpanel
mp_tab_id_mixpanel_2f67015cf0e768be947599dde6845583 41 B Mixpanel
IndexedDB (1)
DatabaseVersionDetected as
mixpanelBrowserDb 1 Mixpanel

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Twitter card meta tags
Responsive viewport meta tag
Favicon present
- Canonical URL declared
- Semantic HTML (nav, main, article)

Performance How?

318 ms Server response
55% Faster than peers
808 ms Largest contentful paint
0.00 Cumulative layout shift
1.4 MB Page weight
1 KB Image weight
0 Console errors
0 Failed requests

1 images: 1 oversized, 1 without width/height, 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 copy signals +5
AI palette signals +5
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
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml
security.txt
llms.txt
ads.txt
humans.txt
? Terms of Service not detected
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
92% unique

Security Headers (1/6)

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

Build

Code splitting
16 JS files
3 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.