aldi.co.uk Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of aldi.co.uk on 2026-06-27. The website returned an HTTP 403 status code with a server response time of 11371ms. The page is served over HTTP/2 protocol, however no compression (Gzip or Brotli) is enabled, which means the page is transferred at its full uncompressed size. The total page weight is 0 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.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, aldi.co.uk receives an overall trust score of 69/100, classified as "Likely Safe".
HTTP Response
Status403
Response Time11371ms
ProtocolHTTP/2
Page Size0 KB
CompressionNone
Compression SavingsN/A
CDNYes ✓
ServerAkamaiGHost
Total Requests0
3rd Party Domains0
Redirect1 hop(s)
Detected Technologies (0)
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
IssuerLet's Encrypt
Issuer FullcountryName=US, organizationName=Let's Encrypt, commonName=E7
SubjectcommonName=aldi.co.uk
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
aldi.co.uk Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, aldi.co.uk receives a trust score of 69/100, 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 reject policy — the strongest available setting, DKIM (DomainKeys Identified Mail) providing cryptographic email verification, and DNSSEC providing authenticated DNS responses.
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, and the domain's WHOIS information is hidden behind a privacy service, making it harder to verify the owner's identity. While these issues don't necessarily indicate malicious intent, they represent areas where the website's security posture could be improved.
We checked aldi.co.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=reject)
✅ DKIM configured
✅ DNSSEC enabled
⚠️ 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
aldi.co.uk Technology Stack & Detected Technologies
🤖 AI Summary
Our automated technology detection scan was unable to identify specific technologies on aldi.co.uk. This could indicate that the site uses server-side rendering without client-side technology fingerprints, employs aggressive code obfuscation, or uses custom-built solutions that don't match known technology signatures.
aldi.co.uk Performance, Speed & Core Web Vitals
🤖 AI Summary
aldi.co.uk delivers its homepage in 11371ms (server response time), which is considered slow by industry standards. The total page weight is 0 KB, and we detected 0 resource requests loading assets from 0 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.
No compression is currently enabled on aldi.co.uk. Enabling Brotli or Gzip compression could reduce page size by 60-80% for text-based assets (HTML, CSS, JavaScript), significantly improving load times and reducing bandwidth costs. This is one of the simplest and most impactful performance optimizations available.
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 aldi.co.uk produces approximately 0.0g 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 0 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for aldi.co.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 view0.0g
RatingA
Page Weight & Optimization
HTML Size0 KB
CompressionNone
Compression SavingsN/A
CDNYes ✓
Total Requests0
3rd Party Domains0
CSS Minified0/0
JS Minified0/0
aldi.co.uk DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
aldi.co.uk resolves to the IPv4 address 2.22.145.68 and also supports IPv6 (2a02:26f0:41::215:f07b), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: udns1.cscdns.net and udns2.cscdns.uk. 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 aldi.co.uk is handled by trendmicro.eu with 1 MX records configured: asgportal.in.tmes.trendmicro.eu. 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 reject policy — the strongest setting, instructing receiving servers to reject unauthorized emails entirely. 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 enabled for aldi.co.uk, providing an additional layer of security by cryptographically signing DNS records. This prevents DNS cache poisoning and man-in-the-middle attacks that could redirect visitors to malicious websites.
Our subdomain enumeration scan discovered 6 active subdomains for aldi.co.uk: api.aldi.co.uk, ftp.aldi.co.uk, help.aldi.co.uk, portal.aldi.co.uk, smtp.aldi.co.uk, and www.aldi.co.uk. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
udns1.cscdns.net
udns2.cscdns.uk
MX
asgportal.in.tmes.trendmicro.eu
Email & Authentication
MX Providertrendmicro.eu
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (6 found)
api.aldi.co.uk ftp.aldi.co.uk help.aldi.co.uk portal.aldi.co.uk smtp.aldi.co.uk www.aldi.co.uk
aldi.co.uk Page Content, Images & Accessibility
🤖 AI Summary
The homepage of aldi.co.uk contains 17 words of visible text content. This is a relatively short page — adding more descriptive content could improve search engine visibility. The page is structured with 0 H2 headings, 0 H3 headings, 0 H4 headings.
The link structure consists of 0 internal links pointing to other pages on the same domain and 0 external links pointing to third-party websites. There are 0 external JavaScript files, 0 CSS stylesheets, and 0 iframes on the page.
Notable missing features: XML Sitemap, robots.txt, and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility.
Content Structure
H1Access Denied
H2 Tags0
H3 Tags0
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links0
External Links0
Assets & Features
JavaScript Files0
JS Minified0/0
CSS Files0
CSS Minified0/0
Iframes0
Images0
Missing Alt0
SitemapNo
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
aldi.co.uk SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for aldi.co.uk is good at 13 characters: "Access Denied". The length is acceptable, though it may be slightly truncated in some search result displays.
No meta description is configured for aldi.co.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.
No Open Graph tags are configured. When someone shares a link to aldi.co.uk on social media, the platform will have to guess the title, description, and image — often producing unattractive or inaccurate previews. Adding OG tags is essential for social media marketing.
Google SERP Preview
Access Denied
https://aldi.co.uk
Meta Tags
TitleAccess Denied...
Title Length13 chars
Meta Desc Length0 chars
H1Access Denied
Language—
Canonical—
Meta Robotsnot set
Meta Keywordsnot set
Schema.org & Social
Schema Types—
OG Type—
OG ImageNot set
Twitter Card—
FaviconNot set