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calculatorsonline.co.uk

Explore 500+ free UK calculators for finance, health, tax, and everyday life. Fast, accurate, no sign-up needed.

United Kingdom Estimated origin: United Kingdom

Visit site · Added June 27, 2026 · Last analysed June 27, 2026 · via · 71% 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 27 June 2026; the live site may have changed since.

calculatorsonline.co.uk looks production-ready overall, with a thorough launch checklist and clean crawl signals. Main gaps: missing several security headers, placeholder text in the legal pages, and incomplete email security.

Launched on Product Hunt on June 27, 2026. The site is hosted on Hostinger International Limited in Germany, with a domain registered 10 months before launch. We've detected 15 technologies on this site, covering wordpress plugin, advertising, analytics, and CMS. The stack includes Google Funding Choices, WordPress, and Complianz.

It's on one of the most common stacks we track, shared by 953 launches.

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

Vibe Score 46 · Some AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (15)

Infrastructure
Hosting Hostinger (2)
Protocol HTTP/3
Server PHP
Email
Business email Hostinger Email
Build & Framework
CMS WordPress (5)
Font Google Fonts
WordPress plugin Complianz (2)
Kadence
Rank Math
Analytics & Marketing
Advertising Google Ads
Google AdSense (2)
Analytics Google Analytics (4)
Consent Google Funding Choices
SEO Google Search Console
Tag management Google Tag Manager medium

Infrastructure

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 20 Jun 2026 to 18 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
10 months
Registered Aug 2025 · Namecheap, Inc. t/a Spaceship

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
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)

Cookies (3)
NameLifetimeDetected as
FCCDCF 1y Google Funding Choices
_ga 1y Google Analytics
_ga_RD1KKFEM8Q 1y Google Analytics
Session storage (1)
KeySizeDetected as
wpEmojiSettingsSupports 70 B WordPress

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)

Performance How?

490 ms Server response
37% Faster than peers
664 ms Largest contentful paint
0.03 Cumulative layout shift
905 KB Page weight
3 KB Image weight
8 Third-party domains
0 Console errors
0 Failed requests

4 images: 2 oversized, 2 without width/height

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 writing signals +5
AI iconography signals +3
AI scaffolding signals +8
AI CSS signals +15

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 (3 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy-policy/
Terms of Service
/terms-and-condition/
Consent manager: Google Funding Choices
! Unfilled placeholders detected
46% unique

Security Headers (2/6)

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

Build

Code splitting
8 JS files
8 CSS files
8 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.