tutorabc.com

We performed a comprehensive analysis of tutorabc.com on 2026-07-07. The website returned an HTTP 200 status code with a server response time of 49506ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 921 KB, and the site is served behind a CDN (Content Delivery Network). The website uses a secure HTTPS connection with a valid SSL certificate issued by DigiCert Inc (OV type). The connection is encrypted using TLS 1.2 with the ECDHE-RSA-AES256-GCM-SHA384 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 38 domain(s) (Subject Alternative Names) and expires on 2027-01-08, which is 185 days from now. The security headers analysis reveals a score of 40/100 (below average). The following security headers are properly configured: Content-Security-Policy and Strict-Transport-Security (HSTS). However, the site is missing X-Frame-Options, X-Content-Type-Options, 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 3 technologies across 3 categories powering tutorabc.com. The detected stack includes Next.js css, React, and Webpack. 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, tutorabc.com receives an overall trust score of 75/100, classified as "Likely Safe".

After conducting a thorough safety and legitimacy analysis, tutorabc.com receives a trust score of 75/100, 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, a valid SSL certificate issued by DigiCert Inc with 185 days until expiration, SPF (Sender Policy Framework) email authentication preventing email spoofing, and DMARC email authentication with a none policy. Areas of concern include: 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 tutorabc.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 tutorabc.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. Framework: Next.js (version css) — provides the application framework and routing for tutorabc.com. UI Library: React — handles the user interface rendering and component management for tutorabc.com. Build Tool: Webpack — bundles and optimizes the JavaScript and CSS assets for tutorabc.com.

tutorabc.com delivers its homepage in 49506ms (server response time), which is considered slow by industry standards. The total page weight is 921 KB, and we detected 280 resource requests loading assets from 0 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 4 CSS files and 1 out of 39 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 tutorabc.com produces approximately 0.45g 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 921 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for tutorabc.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.

tutorabc.com resolves to the IPv4 address 23.212.204.218, 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: a13-65.akam.net, a20-65.akam.net, a28-65.akam.net, and a5-65.akam.net. 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 tutorabc.com is handled by tutorabc.com with 1 MX records configured: spam.tutorabc.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 none policy — a monitoring-only setting that doesn't enforce any action on unauthorized emails. 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 tutorabc.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 tutorabc.com contains 606 words of visible text content. This is a moderate amount of content. The page is structured with 9 H2 headings, 104 H3 headings, 3 H4 headings. The page includes 92 images. 14 images (15%) 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 85% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 120 internal links pointing to other pages on the same domain and 4 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 39 external JavaScript files, 4 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 (Answer, ContactPoint, EducationalOrganization, FAQPage, LocalBusiness, Person, Place, PostalAddress, and Question). We detected the following payment methods accepted on tutorabc.com: Visa, Discover, and JCB. 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 (@TutorABC.com.tw), Instagram (@tutorabc.tw), Linkedin (@tutorabc-com), and Youtube (@UCcj2wMJoIPHVKxRwS1Ma5rQ). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for tutorabc.com is well-optimized at 42 characters: "TutorABC - 最專業的線上語言學習平台 | 線上英文、中文、檢定、遊留學專家". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 117 characters (well-optimized): "TutorABC 提供全球超過 1 億學員專業線上語言學習服務，攜手牛津、劍橋等頂尖教育機構打造高品質教材，滿足線上英文、中文及檢定考試需求。嚴選師資與互動式教學，幫助你流利自信溝通，開啟遊留學與職涯新機會！立即體驗最有效的學習樂趣。". 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.tutorabc.com/site/zh-tw, preventing duplicate content issues, the page language is declared as zh-tw, the meta robots directive is set to index,follow,max-image-preview:large, max-snippet:-1, max-video-preview:-1, and a favicon is configured. Open Graph meta tags are configured with 4/4 recommended fields: OG title ("TutorABC - 最專業的線上語言學習平台 | 線上英文、中文、檢定、遊留學專家..."), 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: Answer, ContactPoint, EducationalOrganization, FAQPage, LocalBusiness, Person, Place, PostalAddress, and Question. 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 TutorABC 提供全球超過 1 億學員專業線上語言學習服務，攜手牛津、劍橋等頂尖教育機構打造高品質教材，滿足線上英文、中文及檢定考試需求。嚴選師資與互動式教學，幫助你流利自信溝通，開啟遊留學與職涯新機會！立即體驗最有效的學習樂趣。. 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.