4devs.net.br

🤖 AI Summary

After conducting a thorough safety and legitimacy analysis, 4devs.net.br 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, HSTS (HTTP Strict Transport Security) enforcement preventing protocol downgrade attacks, and DKIM (DomainKeys Identified Mail) providing cryptographic email verification. 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 4devs.net.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.

🤖 AI Summary

Our technology detection engine scanned 4devs.net.br 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. Framework: Next.js (version media) — provides the application framework and routing for 4devs.net.br. UI Library: React — handles the user interface rendering and component management for 4devs.net.br. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for 4devs.net.br. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for 4devs.net.br. Fonts: Google Fonts — delivers web fonts for typography for 4devs.net.br. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-1JFM06MF97. These IDs can be used to identify other websites operated by the same organization.

🤖 AI Summary

4devs.net.br delivers its homepage in 24483ms (server response time), which is considered slow by industry standards. The total page weight is 48 KB, and we detected 61 resource requests loading assets from 8 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 1 CSS files and 0 out of 11 JavaScript files are minified. Minifying the remaining 12 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 4devs.net.br produces approximately 0.02g 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 48 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 4devs.net.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.

🤖 AI Summary

4devs.net.br resolves to the IPv4 address 199.193.117.202, 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. Email for 4devs.net.br is handled by net.br with 1 MX records configured: mail.4devs.net.br. Multiple MX records provide failover redundancy — if the primary mail server is unavailable, email will be routed to the next available server. SPF is not configured, meaning any server could potentially send emails pretending to be from this domain. This is a significant email security concern. DMARC is not configured, leaving the domain vulnerable to email spoofing and phishing attacks that impersonate this domain. 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 4devs.net.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 4devs.net.br: ftp.4devs.net.br, mail.4devs.net.br, webmail.4devs.net.br, and www.4devs.net.br. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

🤖 AI Summary

The homepage of 4devs.net.br contains 324 words of visible text content. This is a moderate amount of content. The page is structured with 2 H2 headings, 7 H3 headings, 1 H4 headings, 3 H5, and 0 H6 headings. The link structure consists of 29 internal links pointing to other pages on the same domain and 6 external links pointing to third-party websites. There are 11 external JavaScript files, 1 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: Schema.org structured data (ImageObject, Organization, 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. The website has social media presence across 3 platforms: Twitter (@4devs), Instagram (@4devs_net), and Github (@4devs). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

🤖 AI Summary

The title tag for 4devs.net.br is good at 66 characters: "Ferramentas Grátis para Desenvolvedores e Artigos Técnicos | 4DEVS". The length is acceptable, though it may be slightly truncated in some search result displays. The meta description is 160 characters (acceptable): "Hub gratuito com dezenas de ferramentas offline, conversores, geradores (UUID, CPF, Cron) e artigos de engenharia de sof...". 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://4devs.net.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 ("Ferramentas Grátis para Desenvolvedores e Artigos Técnicos |..."), 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. A Twitter Card of type summary_large_image is configured, which controls how links appear when shared on Twitter/X. The "summary_large_image" 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: ImageObject, Organization, 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.

🤖 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 4devs.net.br. 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-1JFM06MF97.