afterschool.com.hk Website Overview & Technology Report
🤖 AI Summary
We performed a comprehensive analysis of afterschool.com.hk on 2026-06-27. The website returned an HTTP 200 status code with a server response time of 8946ms. The page is served over HTTP/2 protocol with Gzip compression enabled, achieving approximately 60.0% size reduction. The total page weight is 144 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 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 4 technologies across 4 categories powering afterschool.com.hk. The detected stack includes Nuxt.js, Vite, Google Tag Manager, and Google Fonts. The site uses Nuxt.js as its primary framework.
Based on our comprehensive analysis of domain age, SSL configuration, email authentication, security headers, and blacklist status, afterschool.com.hk receives an overall trust score of 61/100, classified as "Likely Safe".
HTTP Response
Status200 OK
Response Time8946ms
ProtocolHTTP/2
Page Size144 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Servercloudflare
Total Requests121
3rd Party Domains11
RedirectNone
Detected Technologies (4)
🔧 Nuxt.js
🔨 Vite
🏷️ Google Tag Manager
🔤 Google Fonts
Security Headers
✗
Content-Security-Policy
Not set
✗
Strict-Transport-Security (HSTS)
Not set
✗
X-Frame-Options
Not set
✗
X-Content-Type-Options
Not set
✗
Referrer-Policy
Not set
✗
Permissions-Policy
Not set
SSL Certificate
IssuerGoogle Trust Services
Issuer FullcountryName=US, organizationName=Google Trust Services, commonName=WE1
SubjectcommonName=afterschool.com.hk
Type—
TLS VersionTLS 1.3
Cipher SuiteTLS_AES_256_GCM_SHA384
Algorithm—
Issued—
Expires— (? days)
SANs—
afterschool.com.hk Trust Score & Safety Analysis
🤖 AI Summary
After conducting a thorough safety and legitimacy analysis, afterschool.com.hk receives a trust score of 61/100, 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, SPF (Sender Policy Framework) email authentication preventing email spoofing, DMARC email authentication with a none policy, 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 afterschool.com.hk 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.
Trust Signals
✅ Valid HTTPS
✅ SPF configured
✅ DMARC configured (p=none)
✅ DKIM configured
⚠️ DNSSEC not enabled
✅ Sitemap.xml found
✅ Robots.txt found
⚠️ Missing Content-Security-Policy
⚠️ Missing X-Frame-Options
⚠️ Missing Referrer-Policy
Blacklist Checks (8/8 clean)
✓
Google Safe Browsing
clean
✓
Phishtank
clean
✓
Urlhaus
clean
✓
Openphish
clean
✓
Dnsfilter
clean
✓
Spamhaus Dbl
clean
✓
Surbl
clean
✓
Virustotal
clean
afterschool.com.hk Technology Stack & Detected Technologies
🤖 AI Summary
Our technology detection engine scanned afterschool.com.hk and identified 4 distinct technologies across 4 categories. This analysis is performed by examining HTTP response headers, HTML source code patterns, JavaScript library fingerprints, CSS framework signatures, and DNS records.
Framework: Nuxt.js — provides the application framework and routing for afterschool.com.hk.
Build Tool: Vite — bundles and optimizes the JavaScript and CSS assets for afterschool.com.hk.
Tag Manager: Google Tag Manager — manages marketing and analytics tags without code changes for afterschool.com.hk.
Fonts: Google Fonts — delivers web fonts for typography for afterschool.com.hk.
We also extracted the following tracking identifiers: Google Tag Manager container GTM-MRJTRZ7. These IDs can be used to identify other websites operated by the same organization.
Framework
Build Tool
Tag Manager
🏷️ Google Tag Manager(95%)
Fonts
Tracking IDs
afterschool.com.hk Performance, Speed & Core Web Vitals
🤖 AI Summary
afterschool.com.hk delivers its homepage in 8946ms (server response time), which is considered slow by industry standards. The total page weight is 144 KB, and we detected 121 resource requests loading assets from 11 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: 1 out of 4 CSS files and 0 out of 16 JavaScript files are minified. Minifying the remaining 19 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 afterschool.com.hk produces approximately 0.07g 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 144 KB is the primary factor in this calculation.
Core Web Vitals data from the Chrome User Experience Report (CrUX) is not available for afterschool.com.hk. 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.
Core Web Vitals data not available
Requires CrUX API key configuration
Carbon Footprint
CO₂ per page view0.07g
RatingA
Page Weight & Optimization
HTML Size144 KB
CompressionGzip
Compression Savings~60.0%
CDNYes ✓
Total Requests121
3rd Party Domains11
CSS Minified1/4
JS Minified0/16
afterschool.com.hk DNS Records, Email Authentication & Domain Registration
🤖 AI Summary
afterschool.com.hk resolves to the IPv4 address 172.67.173.249 and also supports IPv6 (2606:4700:3036::ac43:adf9), demonstrating modern network infrastructure readiness. The domain has 2 A record(s) configured.
The domain name system is managed by 2 name servers: bonnie.ns.cloudflare.com and coleman.ns.cloudflare.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 afterschool.com.hk is handled by Google Workspace with 5 MX records configured: aspmx.l.google.com, alt1.aspmx.l.google.com, and alt2.aspmx.l.google.com and 2 more. 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 (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 afterschool.com.hk. 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 afterschool.com.hk: admin.afterschool.com.hk, api.afterschool.com.hk, app.afterschool.com.hk, apps.afterschool.com.hk, blog.afterschool.com.hk, cdn.afterschool.com.hk, community.afterschool.com.hk, and dev.afterschool.com.hk. Plus 17 additional subdomains. Active subdomains can reveal the organization's infrastructure, including development environments, API endpoints, and third-party service integrations.
DNS Records
A
172.67.173.249
104.21.30.233
AAAA
2606:4700:3036::ac43:adf9
NS
bonnie.ns.cloudflare.com
coleman.ns.cloudflare.com
MX
aspmx.l.google.com
alt1.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
Email & Authentication
MX ProviderGoogle Workspace
Registrar—
Organisation—
Country—
Contact—
Registered—
Expires—
Domain Age—
IPv6 SupportYes ✓
Subdomains (25 found)
admin.afterschool.com.hk api.afterschool.com.hk app.afterschool.com.hk apps.afterschool.com.hk blog.afterschool.com.hk cdn.afterschool.com.hk community.afterschool.com.hk dev.afterschool.com.hk developers.afterschool.com.hk docs.afterschool.com.hk ftp.afterschool.com.hk help.afterschool.com.hk m.afterschool.com.hk mail.afterschool.com.hk partners.afterschool.com.hk portal.afterschool.com.hk shop.afterschool.com.hk smtp.afterschool.com.hk staging.afterschool.com.hk static.afterschool.com.hk status.afterschool.com.hk store.afterschool.com.hk support.afterschool.com.hk webmail.afterschool.com.hk www.afterschool.com.hk
afterschool.com.hk Page Content, Images & Accessibility
🤖 AI Summary
The homepage of afterschool.com.hk contains 173 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 2 H2 headings, 0 H3 headings, 8 H4 headings, 8 H5, and 1 H6 headings.
The page includes 21 images. 11 images (52%) 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 48% of images have proper alt text — we recommend adding descriptive alt attributes to all images.
The link structure consists of 41 internal links pointing to other pages on the same domain and 13 external links pointing to third-party websites. There are 16 external JavaScript files, 4 CSS stylesheets, and 1 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 (ImageObject and Organization).
We detected the following payment methods accepted on afterschool.com.hk: Alipay. 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 3 platforms: Facebook (@afterschoollhk), Instagram (@afterschool_hk), and Youtube (@UCvIaZ2sj96LdXxaUWpwPd8g). An active social media presence is a positive trust indicator and helps build brand awareness and customer engagement.
Content Structure
H1—
H2 Tags2
H3 Tags0
H4 Tags8
H5 Tags8
H6 Tags1
Internal Links41
External Links13
Assets & Features
JavaScript Files16
JS Minified0/16
CSS Files4
CSS Minified1/4
Iframes1
Images21
Missing Alt11
SitemapYes ✓
Robots.txtYes ✓
PWANo
AMPNo
RSS FeedNo
Schema.org Types
Payment Methods Detected
Social Media Presence
Facebook: @afterschoollhkInstagram: @afterschool_hkYoutube: @UCvIaZ2sj96LdXxaUWpwPd8g
afterschool.com.hk SEO Analysis, Meta Tags & Open Graph
🤖 AI Summary
The title tag for afterschool.com.hk is well-optimized at 33 characters: "DSE 網上補習平台 | 中學補習課程 | AfterSchool". The length falls within the ideal range for Google search results, ensuring the full title is displayed without truncation.
The meta description is 83 characters (well-optimized): "AfterSchool是一個針對DSE而設的網上補習平台,透過融合科技和教育元素,讓同學足不出戶就能以十倍效率、一半時間、針對自己的學習需要極速進步,輕鬆應付DSE!". 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://afterschool.com.hk/, preventing duplicate content issues, the page language is declared as zh-hant-hk, and a favicon is configured.
Open Graph meta tags are configured with 3/4 recommended fields: OG title ("網上補習平台丨DSE 中學補習課程 | AfterSchool..."), OG description, OG image (social sharing thumbnail), 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: ImageObject and Organization. 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 9 terms including AfterSchool, 網上補習, 補習, 補習班, and hkdse. 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.
Google SERP Preview
DSE 網上補習平台 | 中學補習課程 | AfterSchool
https://afterschool.com.hk
AfterSchool是一個針對DSE而設的網上補習平台,透過融合科技和教育元素,讓同學足不出戶就能以十倍效率、一半時間、針對自己的學習需要極速進步,輕鬆應付DSE!
Meta Tags
TitleDSE 網上補習平台 | 中學補習課程 | AfterSchool...
Title Length33 chars
Meta Desc Length83 chars
H1—
Languagezh-Hant-HK
Canonicalhttps://afterschool.com.hk/
Meta Robotsnot set
Meta KeywordsAfterSchool, 網上補習, 補習, 補習班, hkdse, 補習社, hkdse 2022, hkdse 20...
Schema.org & Social
Schema TypesImageObject, Organization
OG Type—
OG ImageSet ✓
Twitter Card—
FaviconSet ✓
Open Graph Preview
afterschool.com.hk
網上補習平台丨DSE 中學補習課程 | AfterSchool
AfterSchool是一個DSE網上補習平台,融合科技、優良師資、完善線上學習配套,令同學的學習效率遠超坊間補習社,輕鬆應付DSE,立即了解!