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RubricCheck

Use RubricCheck to run an instant rubric check on essays, assignments, and presentations. Free grading feedback for students and teachers.

Education

Added August 23, 2026 · Last analysed August 23, 2026 · via

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Screenshot of RubricCheck

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 23 August 2026; the live site may have changed since.

RubricCheck is partway there, with a thorough launch checklist, well-configured email security, and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and tracking cookies set before any opt-in.

Launched on Product Hunt on August 23, 2026. The site is hosted on Google LLC in the United States. The crawl picked up 8 technologies on this site, covering analytics, CSS frameworks, developer tools, and DNS providers. The stack includes Tailwind CSS, Google Analytics, and Google Domains DNS.

For context, it's on one of the most common stacks we track, shared by 7,271 launches.

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

4.7
StackScope Score
Fair
90/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
0/3 Legal
Missing
2/2 Crawl files
Complete
64/100 Performance
Fair
Vibe Score 20 · 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 (8)

Infrastructure
DNS Google Domains DNS
Build & Framework
CSS framework Tailwind CSS (3)
Developer tools Vite
Font Google Fonts
JavaScript library PDF.js
Analytics & Marketing
Analytics Google Analytics (4)
SEO Google Search Console
Tag management Google Tag Manager (2)

Infrastructure

Network
GOOGLE - Google LLC, US
AS15169 · US
DNS
Google Domains 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 11 Aug 2026 to 9 Nov 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✓
SPF -all Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✓
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 (2)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_M529HV2H92 1y Google Analytics

Readiness Breakdown How?

✓ Custom title and meta description
⚠
Open Graph tags (title, image, description) (partial) missing og:image
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Page title is 78 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
⚠
Meta description is 214 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?

262 ms Server response
54% Faster than peers
2512 ms Largest contentful paint
0.00 Cumulative layout shift
5.1 MB Page weight
5 Third-party domains
1 Console errors
1 Failed requests
Broken first-party requests (1), worth fixing
  • 404 /index.css

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
Placeholder branding +10
AI palette signals +5
AI iconography 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 (1 URLs)
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
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

3 JS files
2 CSS files
5 Third-party domains

Brand Colours

App Manifest

RubricCheck
display: standalone 3 icons
theme #10b981
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.