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chuanmen.edu.vn

https://chuanmen.edu.vn· First analyzed 11 May 2026· Updated 11 May 2026
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chuanmen.edu.vn
Desktop screenshot of chuanmen.edu.vn
Mobile screenshot of chuanmen.edu.vn
Mobile

Sponsored

Hosting Provider

iNET Media Company Limited

IP Address

202.92.6.49

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Dich Vong, Vietnam

ASN

AS135905

Organization

iNET Media Company Limited

Server

LiteSpeed

Nameservers

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

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
517 KB
63 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Blogger

Technology Stack

7 Technologies Detected

Advertising

2
Google AdsGoogle AdSense

Libraries

1
jQueryv1.11.0

CSS Frameworks

1
Tailwind CSS

Analytics

1
Facebook Pixel

Web Servers

1
LiteSpeed

Languages

1
PHPv5.6.40

SEO Analysis

B70/100
20
8
0
Meta Tags13/15
Content11/12
Headings5/8
Technical20/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
C
chuanmen.edu.vnchuanmen.edu.vn

Diễn Đàn Marketing Online Việt Nam | Nơi Chia Sẻ Kiến Thức SEO

Diễn Đàn Marketing Online Việt Nam | Nơi Chia Sẻ Kiến Thức SEO, Kinh Nghiệm SEO, Thủ Thuật, Bí Quyết

Title Length62 chars

Recommended: 50-60 chars (~375px / 580px)

Description Length100 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    5 URLs

    5 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    3/25
    Citation
    10/25

    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
    blockquotesdef. listsnavheader/footer
    Text ratio:9%
    Words:2,126
    Token eff.:Optimal
    Sections/1K:26.8
    Depth:4/5

    Structured Data

    1 JSON-LD
    WebSiteSearchAction

    Citation Readiness

    Opening Summary24w
    Descriptive Headingsavg 4.4w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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.
    D
    54/100
    7
    Passed
    5
    Critical
    3
    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
    0/15
    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
    6/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    1/15
    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.
    54/100
    A
    64 mg
    CO₂e / view
    517.2 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    73 mg
    vs
    Returning (cached)
    37 mg
    Annual (10K/mo)
    7.7 kg
    Emission Segments
    Data Center
    14 mg
    Network
    15 mg
    Device
    34 mg
    Resource Breakdown
    JavaScript
    84.1 KB
    Images
    127.8 KB
    CSS
    239.1 KB
    HTML
    23.1 KB
    Other
    43.0 KB
    Green Hosting Not Verified
    iNET Media Company Limited
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    74d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    Valid From

    26.04.2026

    Valid Until

    25.07.2026

    Subject Alternative Names (3)

    chuanmen.edu.vnmail.chuanmen.edu.vnwww.chuanmen.edu.vn

    SHA-256 Fingerprint

    FF:55:5A:05:75:B3:EE:3B:55:44:49:E5:12:06:90:B8:03:36:07:D4...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...
    cache-control
    🟡 0s(private, max-age=0)
    content-encoding
    📦 Gzip(gzip)
    content-length
    23326
    content-type
    text/html; charset=UTF-8
    date
    Mon, 11 May 2026 16:08:37 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (6)

    emjwcgqitnhufccx76xjvtxy5yyd5lbcip2n7wtrgvxecjuh64fa.mx-verification.GOOGLE.COM
    ALT4.ASPMX.L.GOOGLE.COM
    ALT2.ASPMX.L.GOOGLE.COM
    ASPMX.L.GOOGLE.COM

    +2 more

    Domain Information

    chuanmen.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.
    D
    58/100
    Mobile Friendly1 breakpoint
    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

    Arial

    WCAG Partial
    61/100
    Readability
    /30
    14/30

    13px · LH 1.28

    Hierarchy
    /20
    11/20

    1.85x ratio

    WCAG
    /25
    16/25

    1.07:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Arial

    Sans24px

    Body Font

    Arial

    Sans13px

    Contrast Ratio

    1.07:1

    10 issues

    Reading Comfort

    ~50 CPL

    Optimal (45–75)
    24px
    h1
    16px
    h3
    13px
    p

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.28). Increase to 1.4–1.6 for better readability.

    ✅ Optimal line length: ~50 chars/line (ideal 45–75 CPL).

    ⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.1:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Color Palette

    9 unique colors
    5.54:1 AA Light
    #cdcdc9
    Text· 21.5%
    #4a4a4d
    Other· 5%
    #171c22
    Primary· 19.500000000000004%
    #f7f6de
    Accent· 3.9%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    Social Media

    2
    Facebook SDKFree
    Twitter/X WidgetsFree

    Social widgets and sharing tools

    3

    Categories

    4

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSense

    Sponsored

    Scripts & Styles

    9 Resources

    6
    Scripts
    3
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    js(4)connect.facebook.net(2)

    Website Identity

    chuanmen.edu.vn

    Location detected: 🇻🇳 Vietnamvia tld
    📧 Google Workspacevi-VN

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 11 May 2026 at 16:09

    Historical Analysis & Change Tracking