claro.com.br

We performed a comprehensive analysis of claro.com.br on 2026-06-28. The website returned an HTTP 200 status code with a server response time of 57974ms. 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 1720 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 5 categories powering claro.com.br. The detected stack includes Next.js css, Angular, React, Webpack, Vite, Google Analytics 4, and Google Tag Manager. The site uses Next.js as its primary framework (version css). The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, claro.com.br receives an overall trust score of 77/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, claro.com.br receives a trust score of 77/100, 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, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification. 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 claro.com.br 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 claro.com.br and identified 7 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. Framework: Next.js (version css) and Angular — provides the application framework and routing for claro.com.br. UI Library: React — handles the user interface rendering and component management for claro.com.br. Build Tool: Webpack and Vite — bundles and optimizes the JavaScript and CSS assets for claro.com.br. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for claro.com.br. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for claro.com.br. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-CLARO and Google Tag Manager container GTM-T55D5G6. These IDs can be used to identify other websites operated by the same organization.

claro.com.br delivers its homepage in 57974ms (server response time), which is considered slow by industry standards. The total page weight is 1720 KB, and we detected 399 resource requests loading assets from 35 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 claro.com.br. 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. Asset minification status: 0 out of 1 CSS files and 0 out of 41 JavaScript files are minified. Minifying the remaining 42 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 claro.com.br produces approximately 0.84g of CO₂, earning a carbon rating of F. 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 1720 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for claro.com.br. 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.

claro.com.br resolves to the IPv4 address 3.163.236.182, 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 4 name servers: ns01.claro.net.br, ns02.claro.net.br, ns03.claro.net.br, and ns04.claro.net.br. Having 4 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 claro.com.br is handled by iphmx.com with 2 MX records configured: mx1.hc6114-44.iphmx.com and mx2.hc6114-44.iphmx.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 (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 claro.com.br. 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 claro.com.br: api.claro.com.br, mail.claro.com.br, store.claro.com.br, and www.claro.com.br. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

The homepage of claro.com.br contains 1,305 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 14 H2 headings, 18 H3 headings, 1 H4 headings. The page includes 67 images. 56 images (84%) 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 16% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 197 internal links pointing to other pages on the same domain and 71 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 41 external JavaScript files, 1 CSS stylesheets, and 1 iframes on the page. The site implements the following web standards and features: Schema.org structured data (Brand, ContactPoint, Offer, Organization, PriceSpecification, and Product). 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 claro.com.br: Visa and Discover. 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 5 platforms: Facebook (@clarobrasil), Twitter (@clarobrasil), Instagram (@clarobrasil), Linkedin (@clarobrasil), and Tiktok (@clarobrasil). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for claro.com.br is good at 61 characters: "Site oficial da Claro operadora - Com Fibra, 5G e muito mais!". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 146 characters (well-optimized): "A Claro oferece combos de Internet fixa com fibra, Internet Móvel, TV por Assinatura, Planos de celular com o 4G e 5G, A...". 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.claro.com.br/, preventing duplicate content issues, the page language is declared as pt-br, the meta robots directive is set to index,follow, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("Site oficial da Claro operadora - Com Fibra, 5G e muito mais..."), OG description, OG image (social sharing thumbnail), OG type (website). These tags control how the page appears when shared on Facebook, LinkedIn, and other social media platforms that support the Open Graph protocol. The site implements Schema.org structured data with the following types: Brand, ContactPoint, Offer, Organization, PriceSpecification, and Product. 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.