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trangvangvietnam.com

https://trangvangvietnam.com· First analyzed 19 May 2026· Updated 19 May 2026
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trangvangvietnam.com
Desktop screenshot of trangvangvietnam.com
Mobile screenshot of trangvangvietnam.com
Mobile

Sponsored

Hosting Provider

CMCTELECOM

IP Address

115.146.123.140

Site Location

🇻🇳 Vietnamvia ip

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS38732

Organization

CMCTELECOM

Server

Microsoft IIS

Nameservers

ns2.pavietnam.vn.ns1.pavietnam.vn.

Performance

93

Core Web Vitals

Weight

First Contentful Paint
1.3 s10%
Speed Index
1.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
566 KB
42 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
CMCTELECOM

Technology Stack

8 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

Icon Libraries

1
Font Awesome

Web Servers

1
Microsoft IISv10.0

Frameworks

1
ASP.NET

SEO Analysis

C65/100
17
9
0
Meta Tags14/15
Content10/12
Headings5/8
Technical18/25
E-E-A-T2/7
Images2/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
T
trangvangvietnam.comtrangvangvietnam.com

Trang vàng - Danh bạ doanh nghiệp, trang vàng Việt nam

Trang vàng tốt nhất Việt nam, cung cấp hơn 250.000 doanh nghiệp, 2.500 phân loại ngành nghề, 1.000.000 sản phẩm dịch vụ - Trang vàng kết nối giao thương và x...

Description truncated.
Title Length54 chars

Recommended: 50-60 chars (~331px / 580px)

Description Length175 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    261 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    24/100
    Needs Work
    7 10

    Sponsored

    AI & LLM Readiness

    D41/100
    Bot Access
    23/25
    Machine Read.
    8/25
    Schema Data
    7/25
    Citation
    3/25

    AI Bot Access

    13/14 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:5%
    Words:622
    Token eff.:Optimal
    Sections/1K:1.6

    Structured Data

    2 JSON-LD
    Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary11w
    Descriptive Headingsavg 2w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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
    47/100
    6
    Passed
    6
    Critical
    2
    Warnings
    Images & Alt Text
    10/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    11/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    5/15
    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
    0/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    4 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.
    45/100
    A
    70 mg
    CO₂e / view
    565.6 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    80 mg
    vs
    Returning (cached)
    40 mg
    Annual (10K/mo)
    8.4 kg
    Emission Segments
    Data Center
    16 mg
    Network
    17 mg
    Device
    38 mg
    Resource Breakdown
    JavaScript
    39.0 KB
    Images
    279.6 KB
    CSS
    235.6 KB
    HTML
    11.4 KB
    Green Hosting Not Verified
    CMCTELECOM
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    51%Poor
    Interactive

    HTTPS

    No WAF

    39d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    27.06.2025

    Valid Until

    27.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.trangvangvietnam.comtrangvangvietnam.com

    SHA-256 Fingerprint

    36:AC:BE:06:1E:76:CD:50:A1:32:8D:3E:37:2C:F0:9E:B6:E1:57:B1...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟣 Private(private)
    content-encoding
    📦 Gzip(gzip)
    content-length
    11413
    content-type
    text/html
    date
    Tue, 19 May 2026 04:53:23 GMT
    permissions-policy
    geolocation=(), microphone=(), camera=()
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    trangvangvietnam-com.mail.protection.outlook.com

    Domain Information

    trangvangvietnam.com

    Domain Age
    22y 10m

    Created

    21.07.2003

    Expires

    21.07.2029

    Last Updated

    24.07.2019

    Registrar

    P.A. Viet Nam Company Limited

    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
    59/100
    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

    Verdana + -apple-system

    WCAG Partial
    72/100
    Readability
    /30
    23/30

    19px · LH 1.63

    Hierarchy
    /20
    13/20

    1.74x ratio

    WCAG
    /25
    15/25

    1.34:1 min contrast

    Performance
    /25
    21/25

    System fonts

    Heading Font

    Verdana

    Sans33px

    Body Font

    -apple-system

    Sans19px

    Contrast Ratio

    1.34:1

    1 issue

    Reading Comfort

    ~35 CPL

    Narrow lines
    33px
    h1
    36px
    h3
    19px
    p
    Minor Second
    Scale

    ✅ Excellent readability: 19px body text is ideal for all devices.

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

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.3:1).

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

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

    Buy on MyFontsFlesch 100

    Color Palette

    5 unique colors
    Light
    #ffffff
    Background· 36.2%
    #ffde05
    Primary· 55.9%
    #b3a650
    Secondary· 3.4%
    #f8e76c
    Accent· 2%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    11 Resources

    7
    Scripts
    4
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    trangvangvietnam.com(5)ssl.google-analytics.com(1)googletagmanager.com(1)

    Website Identity

    Công ty Cổ phần Công nghệ và Thông tin Doanh nghiệp Việt

    Công ty Cổ phần Công nghệ và Thông tin Doanh nghiệp Việt

    Organization

    Trang vàng Việt Nam - Danh bạ doanh nghiệp, cung cấp hơn 250.000 doanh nghiệp, 2.500 phân loại ngành nghề, 1.000.000 sản phẩm dịch vụ

    contact@trangvangvietnam.com
    0934498168
    22 years old
    Location detected: 🇻🇳 Vietnamvia ip
    P.A. Viet Nam Company Limited📧 Microsoft 365enEst. 2008

    Sponsored

    Last analyzed: 19 May 2026 at 04:53

    Historical Analysis & Change Tracking