tescomobile.com

We performed a comprehensive analysis of tescomobile.com on 2026-06-29. The website returned an HTTP 200 status code with a server response time of 33534ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 430 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by Let's Encrypt (DV type). The connection is encrypted using TLS 1.3 with the TLS_AES_128_GCM_SHA256 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 6 domain(s) (Subject Alternative Names) and expires on 2026-07-20, which is 21 days from now. The security headers analysis reveals a score of 70/100 (good). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, and X-Content-Type-Options. However, the site is missing 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 4 technologies across 4 categories powering tescomobile.com. The detected stack includes Magento, Webpack, New Relic, and jQuery. The primary e-commerce platform is Magento. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, tescomobile.com receives an overall trust score of 80/100, classified as "Very Likely Safe".

After conducting a thorough safety and legitimacy analysis, tescomobile.com receives a trust score of 80/100, which places it in the "Very 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, a valid SSL certificate issued by Let's Encrypt with 21 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DMARC email authentication with a reject policy — the strongest available setting. Areas of concern include: 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 tescomobile.com 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.

Our technology detection engine scanned tescomobile.com and identified 4 distinct technologies across 4 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. Ecommerce: Magento — powers the online store and shopping functionality for tescomobile.com. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for tescomobile.com. Monitoring: New Relic — monitors application performance and errors for tescomobile.com. JavaScript Library: jQuery — provides utility functions and DOM manipulation for tescomobile.com.

tescomobile.com delivers its homepage in 33534ms (server response time), which is considered slow by industry standards. The total page weight is 430 KB, and we detected 316 resource requests loading assets from 12 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: 9 out of 9 CSS files and 0 out of 4 JavaScript files are minified. Minifying the remaining 4 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 tescomobile.com produces approximately 0.21g of CO₂, earning a carbon rating of B. 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 430 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for tescomobile.com. 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.

tescomobile.com resolves to the IPv4 address 151.101.121.124 and also supports IPv6 (2a04:4e42:8d::380), demonstrating modern network infrastructure readiness. The domain has 1 A record(s) configured. The domain name system is managed by 8 name servers: ns12.ultradns2.com, ns12.ultradns2.org, pdns194.ultradns.biz, pdns194.ultradns.co.uk, pdns194.ultradns.com, pdns194.ultradns.info, pdns194.ultradns.net, and pdns194.ultradns.org. Having 8 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 tescomobile.com is handled by pphosted.com with 2 MX records configured: mxa-00492d01.gslb.pphosted.com and mxb-00492d01.gslb.pphosted.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 reject policy — the strongest setting, instructing receiving servers to reject unauthorized emails entirely. 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 tescomobile.com. 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.

The homepage of tescomobile.com contains 1,499 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 17 H2 headings, 18 H3 headings, 0 H4 headings. The page includes 25 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 189 internal links pointing to other pages on the same domain and 21 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 4 external JavaScript files, 9 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), robots.txt (controls search engine crawling behavior), and Schema.org structured data (ContactPoint, Organization, SearchAction, and WebSite). We detected the following payment methods accepted on tescomobile.com: Discover and Shop Pay. Offering multiple payment options including credit cards and digital wallets improves customer trust and can increase conversion rates. The website has social media presence across 4 platforms: Facebook (@tescomobile), Twitter (@tescomobile), Instagram (@tescomobile), and Github (@newrelic). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for tescomobile.com is good at 62 characters: "Mobile Phones, Phone Contracts & SIM Only Deals | Tesco Mobile". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 160 characters (acceptable): "Discover Tesco Mobile for the best deals on the latest mobile phones. Browse our SIM only deals, pay monthly phone contr...". 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://www.tescomobile.com/, preventing duplicate content issues, the page language is declared as en, the meta robots directive is set to index, follow, and a favicon is configured. No Open Graph tags are configured. When someone shares a link to tescomobile.com 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. The site implements Schema.org structured data with the following types: ContactPoint, Organization, SearchAction, and WebSite. 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. The meta keywords tag contains 1 terms including Tesco Mobile. Note: Google has officially confirmed that it does not use the meta keywords tag as a ranking signal. However, some other search engines (Bing, Yandex) may still reference it.