clarks.co.uk

We performed a comprehensive analysis of clarks.co.uk on 2026-07-06. The website returned an HTTP 200 status code with a server response time of 6811ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 1134 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 85/100 (good). The following security headers are properly configured: Content-Security-Policy, Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options, and Referrer-Policy. However, the site is missing 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 7 technologies across 7 categories powering clarks.co.uk. The detected stack includes Next.js media, Webpack, Google Tag Manager, Klarna, New Relic, reCAPTCHA v3, and Google Fonts. The site uses Next.js as its primary framework (version media). Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, clarks.co.uk receives an overall trust score of 70/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, clarks.co.uk receives a trust score of 70/100, 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, and SPF (Sender Policy Framework) email authentication preventing email spoofing. Areas of concern include: 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 clarks.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.

Our technology detection engine scanned clarks.co.uk and identified 7 distinct technologies across 7 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records. Framework: Next.js (version media) — provides the application framework and routing for clarks.co.uk. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for clarks.co.uk. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for clarks.co.uk. Payments: Klarna — processes payment transactions for clarks.co.uk. Monitoring: New Relic — monitors application performance and errors for clarks.co.uk. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for clarks.co.uk. Fonts: Google Fonts — delivers web fonts for typography for clarks.co.uk. We also extracted the following tracking identifiers: Google Tag Manager container GTM-NPP4CQB. These IDs can be used to identify other websites operated by the same organization.

clarks.co.uk delivers its homepage in 6811ms (server response time), which is considered slow by industry standards. The total page weight is 1134 KB, and we detected 895 resource requests loading assets from 16 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 9 CSS files and 0 out of 43 JavaScript files are minified. Minifying the remaining 52 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 clarks.co.uk produces approximately 0.55g of CO₂, earning a carbon rating of D. The website's carbon footprint could be reduced by optimizing images, enabling compression, reducing third-party scripts, and leveraging caching. For reference, the average web page produces about 0.5g of CO₂ per page view. The page weight of 1134 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for clarks.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.

clarks.co.uk resolves to the IPv4 address 204.74.99.100, 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 6 name servers: pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns5.ultradns.info, and pdns6.ultradns.co.uk. Having 6 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 clarks.co.uk is handled by idp365.net with 3 MX records configured: mail.idp365.net, mxamailgun.org, and mxbmailgun.org. 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 is not configured, leaving the domain vulnerable to email spoofing and phishing attacks that impersonate this domain. 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 clarks.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.

The homepage of clarks.co.uk contains 1,963 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 119 H2 headings, 5 H3 headings, 0 H4 headings. The page includes 55 images. 41 images (75%) are missing alt text attributes, which is a significant concern for both accessibility and SEO. Screen readers rely on alt text to describe images to visually impaired users, and search engines use alt text to understand image content. Only 25% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 736 internal links pointing to other pages on the same domain and 11 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 43 external JavaScript files, 9 CSS stylesheets, and 2 iframes on the page. The site implements the following web standards and features: Schema.org structured data (SearchAction and WebSite) and Progressive Web App (PWA) manifest (enabling app-like installation). Notable missing features: XML Sitemap and robots.txt. Adding these could improve search engine discoverability and rich result eligibility. We detected the following payment methods accepted on clarks.co.uk: Visa, Mastercard, American Express, Discover, Apple Pay, Google Pay, and Klarna. 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 (@ClarksShoes), Instagram (@clarksshoes), Tiktok (@clarks), 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 clarks.co.uk is good at 61 characters: "Clarks Shoes & Footwear | Sandals, Shoes, Boots & Accessories". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 148 characters (well-optimized): "Discover the latest shoe trends & footwear styles at Clarks. Explore our range of fashionable shoes, trendy sandals, cas...". 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.clarks.com/en-gb, 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 clarks.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. The site implements Schema.org structured data with the following types: 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.