Concrete Calculator

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Added June 24, 2026 · Last analysed June 24, 2026 · via

Own this Launch?

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 24 June 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.

Concrete Calculator looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers and no email security records.

Launched on Product Hunt on June 24, 2026. The site is served through Cloudflare. We've detected 13 technologies on this site, covering analytics, wordpress plugin, CDN, and CMS. The stack includes WordPress, Ahrefs, and Cloudflare.

It's running the same core stack as 1,598 other launches.

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

7.1

StackScope Score

Good

100/100 Launch Readiness

Launch ready

0/6 Security Headers

Poor

3/3 Legal

Complete

2/2 Crawl files

Complete

58/100 Performance

Fair

Vibe Score 35 · 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 (13)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS
Protocol	HTTP/3
Server	LiteSpeed Web Server

Build & Framework

CMS	WordPress (3)
Font	Google Fonts
Video	YouTube
WordPress plugin	$Rank Math logo$ Rank Math
WordPress plugin	WP Rocket

Analytics & Marketing

Analytics	Ahrefs
	Google Analytics
	VisibilityKit
SEO	Google Search Console

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

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

Let's Encrypt

Valid 21 May 2026 to 19 Aug 2026

Certificate as captured in this snapshot, not a live check.

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)

⚠

Meta description is 252 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?

1854 ms Server response

3% Faster than peers

5444 ms Largest contentful paint

0.21 Cumulative layout shift

817 KB Page weight

37 KB Image weight

4 Third-party domains

0 Console errors

0 Failed requests

⚠ 25 images: 2 oversized, 5 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?

Signal	Points
Placeholder branding	+10
AI palette signals	+5
AI writing signals	+5
AI layout signals	+5
Unfilled template placeholders	+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

Blocks AI crawlers but publishes an llms.txt

✓ llms.txt published

✗ 9 AI bots blocked in robots.txt

Content-Signal

✗ ai-train = no

✓ search = yes

? ai-input (not 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

/privacy-policy/

✓ Terms of Service

/terms-of-use/

? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).

60% unique

Mentions:

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

1 JS files

16 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.