4cd.instructure.com

🤖 AI Summary

After conducting a thorough safety and legitimacy analysis, 4cd.instructure.com receives a trust score of 58/100, 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. Areas of concern include: the absence of a Content-Security-Policy header, which leaves the site more vulnerable to cross-site scripting (XSS) attacks, 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 4cd.instructure.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.

🤖 AI Summary

Our technology detection engine scanned 4cd.instructure.com and identified 3 distinct technologies across 3 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 4cd.instructure.com. Security: reCAPTCHA v3 — provides security features like bot detection and CAPTCHA for 4cd.instructure.com. JavaScript Library: jQuery (version 3.5.1.) — provides utility functions and DOM manipulation for 4cd.instructure.com.

🤖 AI Summary

4cd.instructure.com delivers its homepage in 23989ms (server response time), which is considered slow by industry standards. The total page weight is 97 KB, and we detected 19 resource requests loading assets from 3 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 4cd.instructure.com. 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: 1 out of 4 CSS files and 3 out of 8 JavaScript files are minified. Minifying the remaining 8 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 4cd.instructure.com 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 97 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for 4cd.instructure.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.

🤖 AI Summary

4cd.instructure.com resolves to the IPv4 address 18.165.122.118, 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 4 A record(s) configured. 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 was not detected. Without DKIM, recipients cannot cryptographically verify that emails claiming to be from this domain are authentic. DNSSEC is not enabled for 4cd.instructure.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. Our subdomain enumeration scan discovered 25 active subdomains for 4cd.instructure.com: admin.4cd.instructure.com, api.4cd.instructure.com, app.4cd.instructure.com, apps.4cd.instructure.com, blog.4cd.instructure.com, cdn.4cd.instructure.com, community.4cd.instructure.com, and dev.4cd.instructure.com. Plus 17 additional subdomains. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.

🤖 AI Summary

The homepage of 4cd.instructure.com contains 261 words of visible text content. This is a relatively short page — adding more descriptive content could improve search engine visibility. The page is structured with 19 H2 headings, 1 H3 headings, 0 H4 headings. The page includes 3 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 2 internal links pointing to other pages on the same domain and 1 external link pointing to third-party websites. There are 8 external JavaScript files, 4 CSS stylesheets, and 0 iframes on the page. The site implements the following web standards and features: robots.txt (controls search engine crawling behavior). Notable missing features: XML Sitemap and Schema.org structured data. Adding these could improve search engine discoverability and rich result eligibility. The website has social media presence across 1 platforms: Twitter (@kb). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

🤖 AI Summary

The title tag for 4cd.instructure.com is well-optimized at 55 characters: "Contra Costa Community College District - Portal Access". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. No meta description is configured for 4cd.instructure.com. This is a critical SEO oversight — without a meta description, Google will auto-generate a snippet from page content, which may not accurately represent the page or entice users to click. Adding a unique, compelling meta description of 120-155 characters is strongly recommended. The page language is declared as en. No Open Graph tags are configured. When someone shares a link to 4cd.instructure.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.

🤖 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 4cd.instructure.com. This data becomes available after batch-crawling the domain database — individual domain lookups cannot populate this section. No tracking IDs were detected on this page that could be used for cross-domain matching.