3g.co.uk Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of 3g.co.uk on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 562ms. The page is served over HTTP/1.1 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 94 KB.
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 0/100 (poor). No security headers are configured, which is a significant security concern. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), 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 5 technologies across 5 categories powering 3g.co.uk. The detected stack includes Bootstrap, Google Analytics 4, Google Fonts, jQuery 3.6.0., and Font Awesome.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, 3g.co.uk receives an overall trust score of 59/100, classified as "Caution Advised".
HTTP Response
Status200 OK
Response Time562ms
ProtocolHTTP/1.1
Page Size94 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
ServerApache
Total Requests167
3rd Party Domains5
RedirectNone
Detected Technologies (5)
🎨 Bootstrap
📊 Google Analytics 4
🔤 Google Fonts
📦 jQuery
🎯 Font Awesome
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not 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=R13
SubjectcommonName=3g.co.uk
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
3g.co.uk Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, 3g.co.uk receives a trust score of 59/100, which places it in the "Caution Advised" 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DMARC email authentication with a none policy.
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 3g.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
✅ SPF configured
✅ DMARC configured (p=none)
⚠️ DNSSEC not enabled
✅ Sitemap.xml 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
3g.co.uk Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned 3g.co.uk and identified 5 distinct technologies across 5 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
CSS Framework: Bootstrap — provides the styling and responsive layout system for 3g.co.uk.
Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for 3g.co.uk.
Fonts: Google Fonts — delivers web fonts for typography for 3g.co.uk.
JavaScript Library: jQuery (version 3.6.0.) — provides utility functions and DOM manipulation for 3g.co.uk.
Icon Set: Font Awesome — provides additional functionality for 3g.co.uk.
We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-25FJ7D5P75. These IDs can be used to identify other websites operated by the same organization.
CSS Framework
Analytics
📊 Google Analytics 4(95%)
Fonts
JavaScript Library
Icon Set
Tracking IDs
3g.co.uk Performance, Speed & Core Web Vitals
🤖 AI Summary
3g.co.uk delivers its homepage in 562ms (server response time), which is considered average by industry standards. The total page weight is 94 KB, and we detected 167 resource requests loading assets from 5 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: 1 out of 3 CSS files and 2 out of 5 JavaScript files are minified. Minifying the remaining 5 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.
From an environmental perspective, each page view of 3g.co.uk produces approximately 0.05g 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 94 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 3g.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 view0.05g
RatingA
Page Weight & Optimization
HTML Size94 KB
CompressionGzip
Compression Savings~60.0%
CDNNo
Total Requests167
3rd Party Domains5
CSS Minified1/3
JS Minified2/5
3g.co.uk DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
3g.co.uk resolves to the IPv4 address 109.237.24.143, but does not support IPv6. IPv6 adoption is increasingly important as IPv4 address space becomes exhausted, and some ISPs and regions are transitioning to IPv6-only connectivity. The domain has 1 A record(s) configured.
The domain name system is managed by 3 name servers: dns1.uk2.net, dns2.uk2.net, and dns3.uk2.net. Having 3 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 3g.co.uk is handled by stackmail.com with 1 MX records configured: mx.stackmail.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 was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic.
DNSSEC is not enabled for 3g.co.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 4 active subdomains for 3g.co.uk: blog.3g.co.uk, cdn.3g.co.uk, shop.3g.co.uk, and www.3g.co.uk. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
NS
dns1.uk2.net
dns2.uk2.net
dns3.uk2.net
Email & Authentication
MX Providerstackmail.com
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportNo
Subdomains (4 found)
blog.3g.co.uk cdn.3g.co.uk shop.3g.co.uk www.3g.co.uk
3g.co.uk Page Content, Images & Accessibility
🤖 AI Summary
The homepage of 3g.co.uk contains 1,036 words of visible text content. This is a substantial amount of content that provides good opportunities for search engine indexing. The page is structured with 9 H2 headings, 24 H3 headings, 0 H4 headings.
The page includes 31 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 124 internal links pointing to other pages on the same domain and 5 external links pointing to third-party websites. The high number of internal links suggests a well-interconnected site structure, which helps search engines discover and crawl all pages efficiently. There are 5 external JavaScript files, 3 CSS stylesheets, and 0 iframes on the page.
The site implements the following web standards and features: XML Sitemap (helps search engines discover all pages) and Schema.org structured data (Organization and PostalAddress).
Notable missing features: robots.txt. Adding these could improve search engine discoverability and rich result eligibility.
The website has social media presence across 2 platforms: Facebook (@3g.co.uk) and Twitter (@3gcouk). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H13G.co.uk
H2 Tags9
H3 Tags24
H4 Tags0
H5 Tags0
H6 Tags0
Internal Links124
External Links5
Assets & Features
JavaScript Files5
JS Minified2/5
CSS Files3
CSS Minified1/3
Iframes0
Images31
Missing Alt0
SitemapYes ✓
Robots.txtNo
PWANo
AMPNo
RSS FeedNo
Schema.org Types
OrganizationPostalAddress
Social Media Presence
Facebook: @3g.co.ukTwitter: @3gcouk
3g.co.uk SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for 3g.co.uk is well-optimized at 57 characters: "3G | Three Mobile Store | Latest Phone and SIM Only deals". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 140 characters (well-optimized): "Buy mobile phones, SIM cards, Tablets and Mobile Broadband on Three network. Free phones from £10, SIM deals from £5 and...". Google typically displays up to 155-160 characters of the meta description in search results. A compelling meta description with a clear call-to-action can significantly improve click-through rates from search results.
The canonical url is correctly set to https://3g.co.uk/, preventing duplicate content issues, the page language is declared as en-gb, the meta robots directive is set to noydir, and a favicon is configured.
Open Graph meta tags are configured with 1/4 recommended fields: OG description, 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 is configured, which controls how links appear when shared on Twitter/X. The "summary" type displays a large image preview, which typically generates higher engagement rates than the basic card type.
The site implements Schema.org structured data with the following types: Organization and PostalAddress. Structured data helps search engines understand the page content and can enable rich results (featured snippets, knowledge panels, star ratings) in Google search results, which can significantly increase click-through rates.
Google SERP Preview
3G | Three Mobile Store | Latest Phone and SIM Only deals
https://3g.co.uk
Buy mobile phones, SIM cards, Tablets and Mobile Broadband on Three network. Free phones from £10, SIM deals from £5 and broadband from £10.
Meta Tags
Title3G | Three Mobile Store | Latest Phone and SIM Only deals...
Title Length57 chars
Meta Desc Length140 chars
H13G.co.uk
Languageen-GB
Canonicalhttps://3g.co.uk/
Meta Robotsnoydir
Meta Keywordsnot set
Schema.org & Social
Schema TypesOrganization, PostalAddress
OG Type—
OG ImageNot set
Twitter Cardsummary
FaviconSet ✓
3g.co.uk Related Domains & Cross-References
🤖 AI Summary
Related domain discovery works by finding other websites that share the same IP address, Google Tag Manager container ID, Google Analytics property, or advertising pixel IDs with 3g.co.uk. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. We extracted the following tracking IDs that can be used for cross-referencing: ga4_id: G-25FJ7D5P75.
Tracking IDs for Cross-Referencing
Related Domains
Related domain data requires database (populated after batch crawl)