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Simplex Method Calculator

Free online simplex method calculator and linear programming solver. Solve maximization and minimization problems step by step with full tableau iterations.

Added July 21, 2026 · Last analysed July 21, 2026 · via · 75% unique tagline

Screenshot of Simplex Method Calculator

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 21 July 2026; the live site may have changed since.

Simplex Method Calculator ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. What needs work: no email security records.

Launched on Product Hunt on July 21, 2026. The site is hosted on Vercel, with a domain registered 6 months before launch. We've detected 7 technologies on this site, covering advertising, CSS frameworks, DNS providers, and hosting. The stack includes Tailwind CSS, Adsterra, and EffectiveCPMNetwork.

It's running the same core stack as 2,547 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 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 (7)

Infrastructure
DNS Hostinger DNS
Hosting Vercel
Security HSTS
Build & Framework
CSS framework Tailwind CSS
Package CDN jsDelivr
Analytics & Marketing
Advertising Adsterra (2)
EffectiveCPMNetwork

Infrastructure

Network
AS16509 · US
DNS
Hostinger DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 24 Jun 2026 to 22 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
6 months
Registered Jan 2026 · HOSTINGER operations, UAB

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
?
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)
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)

Performance How?

108 ms Server response
92% Faster than peers
516 ms Largest contentful paint
0.00 Cumulative layout shift
55 KB Page weight
30 KB Image weight
4 Third-party domains
0 Console errors
0 Failed requests

2 images: 2 oversized

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 iconography 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

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (702 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy/
Terms of Service
/terms/
94% unique

Security Headers (6/6)

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

Build

2 JS files
2 CSS files
4 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.