mbest.co.kr

We performed a comprehensive analysis of mbest.co.kr on 2026-07-07. The website returned an HTTP 200 status code with a server response time of 8573ms. The page is served over HTTP/1.1 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 208 KB. The website uses a secure HTTPS connection with a valid SSL certificate issued by DigiCert Inc (OV type). The connection is encrypted using TLS 1.3 with the TLS_AES_256_GCM_SHA384 cipher suite and sha256WithRSAEncryption signature algorithm. The certificate covers 2 domain(s) (Subject Alternative Names) and expires on 2027-02-26, which is 234 days from now. The security headers analysis reveals a score of 0/100 (poor). No security headers are configured, which is a significant security concern. However, the site is missing Content-Security-Policy, Strict-Transport-Security (HSTS), 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 6 technologies across 5 categories powering mbest.co.kr. The detected stack includes React, Google Analytics 4, Google Tag Manager, Meta Pixel, TikTok Pixel, and jQuery. The UI is built with React. Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, mbest.co.kr receives an overall trust score of 55/100, classified as "Caution Advised".

After conducting a thorough safety and legitimacy analysis, mbest.co.kr receives a trust score of 55/100, 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 SSL certificate issued by DigiCert Inc with 234 days until expiration and SPF (Sender Policy Framework) email authentication preventing email spoofing. 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 mbest.co.kr 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 mbest.co.kr and identified 6 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. UI Library: React — handles the user interface rendering and component management for mbest.co.kr. Analytics: Google Analytics 4 — tracks visitor behavior and provides traffic insights for mbest.co.kr. Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for mbest.co.kr. Advertising: Meta Pixel and TikTok Pixel — handles advertising pixel tracking and conversion measurement for mbest.co.kr. JavaScript Library: jQuery — provides utility functions and DOM manipulation for mbest.co.kr. We also extracted the following tracking identifiers: Google Analytics 4 Measurement ID G-SDQ02G2RQF, Google Tag Manager container GTM-KJRJ2R5V, Meta (Facebook) Pixel ID 550440175728446, and TikTok Pixel ID C8TT45V3FJSJ824L2F80. These IDs can be used to identify other websites operated by the same organization.

mbest.co.kr delivers its homepage in 8573ms (server response time), which is considered slow by industry standards. The total page weight is 208 KB, and we detected 689 resource requests loading assets from 32 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 mbest.co.kr. 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: 3 out of 6 CSS files and 6 out of 37 JavaScript files are minified. Minifying the remaining 34 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 mbest.co.kr produces approximately 0.1g 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 208 KB is the primary factor in this calculation. Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for mbest.co.kr. 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.

mbest.co.kr resolves to the IPv4 address 121.156.104.1, 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 2 name servers: ns.kt-idc.com and ns2.kt-idc.com. Having 2 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 mbest.co.kr is handled by megastudy.net with 1 MX records configured: spam.megastudy.net. 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 mbest.co.kr. 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 mbest.co.kr contains 2,432 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 9 H2 headings, 22 H3 headings, 7 H4 headings. The page includes 264 images. 128 images (48%) 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 52% of images have proper alt text — we recommend adding descriptive alt attributes to all images. The link structure consists of 272 internal links pointing to other pages on the same domain and 33 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 37 external JavaScript files, 6 CSS stylesheets, and 1 iframes on the page. The site implements the following web standards and features: Schema.org structured data (ContactPoint, CreativeWork, Event, ItemList, ListItem, Organization, Product, Review, and VirtualLocation). 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: Facebook (@mbest01), Instagram (@mbest.official), and Youtube (@UCRU9XT2rQ9A8H0ssFWKRMjA). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.

The title tag for mbest.co.kr is well-optimized at 35 characters: "중등인강 1위 엠베스트 | 내신부터 특목고 합격까지 결과로 증명". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation. The meta description is 91 characters (well-optimized): "이유 있는 중등인강 1위! 최강 중등 강사진의 프라임 종합반과 단과 강의로 중학교 내신 완벽 관리부터 특목고 합격까지. 성적 향상의 지름길, 엠베스트와 함께하세요.". 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.mbest.co.kr, preventing duplicate content issues, the page language is declared as ko, 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 ("엠베스트 중등인강 1위 | 내신부터 합격까지, 결과로 증명하는 엠베스트..."), 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: ContactPoint, CreativeWork, Event, ItemList, ListItem, Organization, Product, Review, and VirtualLocation. 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 29 terms including 엠베스트, 엠베스트중등, 메가스터디, 메가스터디교육, and 엘리하이. 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.