acu.org.uk Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of acu.org.uk on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 38254ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 25 KB, and the site is served behind a CDN (Content Delivery Network).
Warning: The website does not have a valid SSL certificate. Visitors may see security warnings in their browser, and data transmitted to and from this website is not encrypted.
The security headers analysis reveals a score of 20/100 (poor). The following security headers are properly configured: Strict-Transport-Security (HSTS). However, the site is missing Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy, which could expose the site and its users to cross-site scripting (XSS), clickjacking, and other web-based attacks.
Our technology detection scan identified 3 technologies across 3 categories powering acu.org.uk. The detected stack includes Google Analytics 4, Cloudflare, and jQuery.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, acu.org.uk receives an overall trust score of 65/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time38254ms
ProtocolHTTP/2
Page Size25 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests171
3rd Party Domains18
Redirect1 hop(s)
Detected Technologies (3)
📊 Google Analytics 4
☁️ Cloudflare
📦 jQuery
Security Headers
✗
Content-Security-Policy
Not set
✓
Strict-Transport-Security (HSTS)
Set ✓
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=acu.org.uk
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
acu.org.uk Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, acu.org.uk receives a trust score of 65/100, which places it in the "Likely Safe" category. This score is calculated by evaluating multiple factors including SSL certificate validity, domain registration history, email authentication protocols, security header configuration, and blacklist status across major threat intelligence databases.
The analysis identified several positive trust signals: a valid HTTPS connection protecting data in transit, HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a none policy, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification.
Areas of concern include: the absence of a Content-Security-Policy header, which leaves the site more vulnerable to cross-site scripting (XSS) attacks, no X-Frame-Options header, which could allow the site to be embedded in malicious iframes (clickjacking), missing Referrer-Policy, potentially leaking URL information to third parties, the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity, and DNSSEC is not enabled, leaving DNS queries vulnerable to spoofing attacks. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved.
We checked acu.org.uk against 8 major blacklist databases including Google Safe Browsing, Phishtank, Urlhaus, Openphish, Dnsfilter, Spamhaus Dbl, Surbl, and Virustotal. The domain passed all 8 checks with a clean status, meaning it has not been flagged for phishing, malware distribution, spam, or other malicious activities by any of the tested threat intelligence providers.
Trust Signals
✅ Valid HTTPS
✅ HSTS enabled
✅ SPF configured
✅ DMARC configured (p=none)
✅ DKIM configured
⚠️ DNSSEC not enabled
✅ Robots.txt found
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
⚠️ Missing Referrer-Policy
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
acu.org.uk Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned acu.org.uk and identified 3 distinct technologies across 3 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for acu.org.uk.
CDN: Cloudflare — accelerates content delivery by caching assets at edge locations worldwide for acu.org.uk.
JavaScript Library: jQuery — provides utility functions and DOM manipulation for acu.org.uk.
Analytics
📊 Google Analytics 4(95%)
CDN
JavaScript Library
acu.org.uk Performance, Speed & Core Web Vitals
🤖 AI Summary
acu.org.uk delivers its homepage in 38254ms (server response time), which is considered slow by industry standards. The total page weight is 25 KB, and we detected 171 resource requests loading assets from 18 third-party domains. A high number of third-party domains can significantly impact page load time due to additional DNS lookups and TLS handshakes required for each domain.
The website uses Gzip compression for text-based assets, achieving an estimated 60.0% reduction in transfer size. This reduces bandwidth usage and improves page load times, especially for visitors on slower connections.
Asset minification status: 0 out of 2 CSS files and 4 out of 8 JavaScript files are minified. Minifying the remaining 6 unminified file(s) could further reduce page weight by 10-30% for those assets. Minification is a best practice that reduces download sizes without affecting functionality.
The site is served through a Content Delivery Network (CDN), which caches static assets at edge servers around the world. This means visitors from different geographic regions receive content from the nearest edge server, significantly reducing latency. CDN usage is particularly important for websites with a global audience, as it can reduce page load times by 40-60% for distant visitors.
From an environmental perspective, each page view of acu.org.uk produces approximately 0.01g of CO₂, earning a carbon rating of A. This places the website among the cleanest on the web, demonstrating efficient use of server resources and optimized content delivery. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 25 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for acu.org.uk. This typically means the site doesn't have enough real-world Chrome user traffic to generate statistically significant field data, or the domain is not included in the CrUX dataset. Core Web Vitals (LCP, INP, CLS) are important Google ranking factors that measure real user experience.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.01g
RatingA
Page Weight & Optimization
HTML Size25 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests171
3rd Party Domains18
CSS Minified0/2
JS Minified4/8
acu.org.uk DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
acu.org.uk resolves to the IPv4 address 104.21.8.206 and also supports IPv6 (2606:4700:3032::ac43:82a1), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: boyd.ns.cloudflare.com and naya.ns.cloudflare.com. Having 2 name servers provides good redundancy — if one fails, the others can continue serving DNS queries. The choice of name servers often indicates the DNS hosting provider or CDN service being used.
Email for acu.org.uk is handled by barracudanetworks.com with 2 MX records configured: d225890.a.ess.uk.barracudanetworks.com and d225890.b.ess.uk.barracudanetworks.com. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server.
SPF (Sender Policy Framework) is configured, which specifies which mail servers are authorized to send email on behalf of this domain. This helps prevent email spoofing and improves email deliverability. DMARC (Domain-based Message Authentication, Reporting and Conformance) is configured with a none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. DKIM (DomainKeys Identified Mail) is configured, adding a cryptographic signature to outgoing emails that receiving servers can verify to confirm the email hasn't been tampered with in transit.
DNSSEC is not enabled for acu.org.uk. While not critical for most websites, DNSSEC adds an important security layer by ensuring DNS responses haven't been tampered with during transit. Enabling DNSSEC is recommended for domains handling sensitive data or financial transactions.
Our subdomain enumeration scan discovered 1 active subdomains for acu.org.uk: www.acu.org.uk. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
104.21.8.206
172.67.130.161
AAAA
2606:4700:3032::ac43:82a1
NS
boyd.ns.cloudflare.com
naya.ns.cloudflare.com
MX
d225890.a.ess.uk.barracudanetworks.com
d225890.b.ess.uk.barracudanetworks.com
Email & Authentication
MX Providerbarracudanetworks.com
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (1 found)
acu.org.uk Page Content, Images & Accessibility
🤖 AI Summary
The homepage of acu.org.uk contains 460 words of visible text content. This is a moderate amount of content. The page is structured with 0 H2 headings, 0 H3 headings, 0 H4 headings.
The page includes 30 images. All images have proper alt text attributes ✓, which is excellent for both accessibility (screen readers) and SEO (search engines can understand image content).
The link structure consists of 80 internal links pointing to other pages on the same domain and 25 external links pointing to third-party websites. There are 8 external JavaScript files, 2 CSS stylesheets, and 0 iframes on the page.
The site implements the following web standards and features: robots.txt (controls search engine crawling behavior), Progressive Web App (PWA) manifest (enabling app-like installation), and RSS feed for content syndication.
Notable missing features: XML Sitemap and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
The website has social media presence across 2 platforms: Facebook (@AutoCycleUnionLtd) and Twitter (@AutoCycleUnion). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1Welcome to the Auto-Cycle Union (ACU) - Bikesport GB
H2 Tags0
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links80
External Links25
Assets & Features
JavaScript Files8
JS Minified4/8
CSS Files2
CSS Minified0/2
Iframes0
Images30
Missing Alt0
SitemapNo
Robots.txtYes ✓
PWAYes ✓
AMPNo
RSS FeedYes ✓
Social Media Presence
Facebook: @AutoCycleUnionLtdTwitter: @AutoCycleUnion
acu.org.uk SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for acu.org.uk is well-optimized at 52 characters: "Welcome to the Auto-Cycle Union (ACU) - Bikesport GB". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
No meta description is configured for acu.org.uk. This is a critical SEO oversight — without a meta description, Google will auto-generate a snippet from page content, which may not accurately represent the page or entice users to click. Adding a unique, compelling meta description of 120-155 characters is strongly recommended.
The canonical url is correctly set to https://www.acu.org.uk/, preventing duplicate content issues, the page language is declared as en-gb, the meta robots directive is set to all, noodp, and a favicon is configured.
Open Graph meta tags are configured with 3/4 recommended fields: OG title ("Welcome to the Auto-Cycle Union (ACU) - Bikesport GB..."), OG image (social sharing thumbnail), OG type (article). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol.
A Twitter Card of type summary_large_image is configured, which controls how links appear when shared on Twitter/X. The "summary_large_image" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
Google SERP Preview
Welcome to the Auto-Cycle Union (ACU) - Bikesport GB
https://acu.org.uk
Meta Tags
TitleWelcome to the Auto-Cycle Union (ACU) - Bikesport GB...
Title Length52 chars
Meta Desc Length0 chars
H1Welcome to the Auto-Cycle Union (ACU) - Bikesport GB
Languageen-gb
Canonicalhttps://www.acu.org.uk/
Meta RobotsAll, NOODP
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Typearticle
OG ImageSet ✓
Twitter Cardsummary_large_image
FaviconSet ✓
Open Graph Preview
acu.org.uk
Welcome to the Auto-Cycle Union (ACU) - Bikesport GB