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kase.edu.vn

https://kase.edu.vn· First analyzed 31 May 2026· Updated 31 May 2026
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kase.edu.vn
Desktop screenshot of kase.edu.vn
Mobile screenshot of kase.edu.vn
Mobile

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Hosting Provider

VNPT

IP Address

14.225.7.27

Site Location

🇻🇳 Hồ Chí Minh, Vietnamvia schema

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS135905

Organization

VNPT

Server

Nginx

Nameservers

ns1.matbao.com.ns2.matbao.com.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.2 MB
159 requests

Image Optimization

Lazy LoadResponsiveShortPixel
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.8.2
cms
Astrav2.5.4
by Brainstorm Force
View Theme

Technology Stack

20 Technologies Detected

Plugins

5
FormidableWp Popups Litee
Elementor
WooCommerce
Yoast SEO

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

2
jQueryv3.7.1
jQuery UI

Icon Libraries

2
Font AwesomeMaterial Icons

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Customer Support

1
Tawk.to

Web Servers

1
Nginxv1.14.1

Languages

1
PHPv7.4.33

Security

1
reCAPTCHA

SEO Analysis

A+92/100
29
4
0
Meta Tags13/15
Content10/12
Headings8/8
Technical25/25
E-E-A-T7/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
K
kase.edu.vnkase.edu.vn

Trung tâm đào tạo Khóa Học Lập Trình Viên Cho Trẻ - KASE Edutech

KASE Edutech chuyên mở các lớp học lập trình cho trẻ em từ 07-11 tuổi, 12-17 tuổi. Khóa học máy tính & tư duy lập trình các bé sẽ tăng tư duy sáng tạo, lập k...

Description truncated.
Title Length64 chars

Recommended: 50-60 chars (~397px / 580px)

Description Length200 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1 URLs

    robots.txt

    7 rules

    Local SEO

    Local Search Readiness

    59/100
    Fair
    15 9

    Sponsored

    AI & LLM Readiness

    D55/100
    Bot Access
    20/25
    Machine Read.
    0/25
    Schema Data
    15/25
    Citation
    20/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:6%
    Words:11,347
    Token eff.:Excessive

    Structured Data

    9 JSON-LD
    Person×1.3Organization×1.1WebSiteLocalBusiness×1.1ProductEventSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary46w
    Descriptive Headingsavg 7.8w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    C
    66/100
    11
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    2/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    8/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    29/100
    D
    275 mg
    CO₂e / view
    2.2 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    314 mg
    vs
    Returning (cached)
    157 mg
    Annual (10K/mo)
    33.0 kg
    Emission Segments
    Data Center
    61 mg
    Network
    66 mg
    Device
    148 mg
    Resource Breakdown
    JavaScript
    381.5 KB
    Images
    1.4 MB
    CSS
    318.8 KB
    Fonts
    3.4 KB
    HTML
    115.7 KB
    Other
    7.0 KB
    Green Hosting Not Verified
    VNPT
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    7d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp384r1) (384 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    09.03.2026

    Valid Until

    07.06.2026

    Subject Alternative Names (2)

    kase.edu.vnwww.kase.edu.vn

    SHA-256 Fingerprint

    06:42:B8:26:35:D2:0F:A3:00:C8:AC:98:39:FE:1B:57:37:7F:94:C7...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Sun, 31 May 2026 11:10:10 GMT
    last-modified
    Mon, 25 May 2026 08:30:11 GMT
    server
    nginx/1.14.1
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    pro209.emailserver.vn

    Domain Information

    kase.edu.vn

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    B
    79/100
    Mobile Friendly57 breakpoints
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width, initial-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    -apple-system

    WCAG Partial
    77/100
    Readability
    /30
    21/30

    18px · LH 1.86

    Hierarchy
    /20
    19/20

    2.5x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    4.38:1 min contrast

    Performance
    /25
    18/25

    System fonts

    Heading Font

    -apple-system

    Sans45px

    Body Font

    -apple-system

    Sans18px

    Contrast Ratio

    4.38:1

    1 issue

    Reading Comfort

    ~34 CPL

    Narrow lines
    45px
    h1
    45px
    h2
    20px
    h3
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ⚠️ Wide line spacing (1.86). 1.4–1.6 is optimal for body text.

    ✅ Easy to read: Flesch score 86/100 — accessible to general audiences.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 4.4:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

    GGoogle FontsFlesch 86

    Color Palette

    10 unique colors
    Light
    #f0f0f0
    Background· 30.9%
    #0b68bd
    Primary· 16.5%
    #0b8bcf
    Primary· 15.1%
    #c8a069
    Secondary· 8.7%
    #87c6d8
    Accent· 5.7%
    #074ba8
    Primary· 4.7%
    #424965
    Secondary· 4.3%
    #3499c7
    Accent· 2%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    28 Resources

    20
    Scripts
    8
    Styles
    8
    Async
    0
    Defer

    Top Script Sources

    kase.edu.vn(10)connect.facebook.net(4)googletagmanager.com(3)google-analytics.com(1)images.dmca.com(1)

    Website Identity

    Trung tâm đào tạo Lập trình cho trẻ KASE Edutech

    Trung tâm đào tạo Lập trình cho trẻ KASE Edutech

    EducationalOrganization

    KASE Edutech chuyên mở các lớp học lập trình cho trẻ em từ 07-11 tuổi, 12-17 tuổi. Khóa học máy tính & tư duy lập trình các bé sẽ tăng tư duy sáng tạo, lập kế hoạch, đam mê CNTT. Hotline: 0938.031.386

    [email protected]
    0938031386

    số 440 đường Nguyễn Kiệm, phường 3, Hồ Chí Minh

    72213, Hồ Chí Minh

    VN

    Location detected: 🇻🇳 Vietnam, Hồ Chí Minhvia schema
    vi-VN

    Sponsored

    Last analyzed: 31 May 2026 at 11:15

    Historical Analysis & Change Tracking

    kase.edu.vn Technology Stack - Built With jQuery, jQuery UI, Swiper, Tailwind CSS, Font Awesome | StackOptic | StackOptic