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Lembog Tools - Right Triangle Calculator

Solve any right triangle instantly. Enter any 2 values to calculate all sides, angles, area, perimeter, altitude, and trigonometric ratios. Free online tool with step-by-step solutions.

Added May 6, 2026 · Last analysed May 6, 2026 · via

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 6 May 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

Lembog Tools - Right Triangle Calculator is largely in shape, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing several security headers and incomplete email security.

Launched on Product Hunt on May 6, 2026. The site is served through Cloudflare, with a domain registered in 2018. The crawl picked up 14 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Google Funding Choices, Next.js, and React.

For context, it's on one of the most common stacks we track, shared by 5,873 launches.

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

7.9
StackScope Score
Good
94/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 30 · 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 (14)

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Email
Email forwarding Cloudflare Email Routing (2)
Build & Framework
CSS framework Tailwind CSS
Font Google Fonts
Framework React
Meta-framework Next.js
UI library shadcn/ui
Analytics & Marketing
Advertising Google Ads
Google AdSense (3)
Analytics Google Analytics (3)
Consent Google Funding Choices
SEO Google Search Console

Infrastructure

Network
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 Apr 2026 to 30 Jun 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
7.8 years
Registered Nov 2018 · Spaceship, Inc.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
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 (7)

Cookies (3)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_HDPCR7SCD3 1y Google Analytics
__eoi 6mo Google Ads
Local storage (3)
KeySizeDetected as
google_adsense_settings 61 B Google AdSense
google_ama_settings 17 B Google AdSense
google_auto_fc_cmp_setting 3 B Google Funding Choices
Cache storage (1)
Cache nameDetected as
start-url -

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
Page title is 72 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 185 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.
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +10
AI palette signals +5
AI writing signals +5
AI stack signals +10

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 (297 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy-policy
Terms of Service
/terms-and-conditions
Consent manager: Google Funding Choices
Shared by 1 other site (identical text)
0% unique
ToS shared by 1 other site

Security Headers (2/6)

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

Performance

182ms response time
Faster than 69% of sites
4 third-party domains loaded

Build

Code splitting
33 JS files
4 CSS files
4 Third-party domains

Brand Colours

App Manifest

Lembog Tools
display: standalone 4 icons
theme #F3EFE0
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.