StackOptic
Back to Search
voh.com.vn favicon

voh.com.vn

https://voh.com.vn· First analyzed 07 May 2026· Updated 07 May 2026
Export
voh.com.vn
Desktop screenshot of voh.com.vn
Mobile screenshot of voh.com.vn
Mobile

Sponsored

Hosting Provider

Viettel Group

IP Address

125.212.213.154

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS7552

Organization

Viettel Group

Server

Nginx

Nameservers

ns100.vdc2.vn.ns99.vdc2.vn.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
171 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
⚙️ SSR
Frontend
Framework
Next.js
Infrastructure
Hosting
Viettel Group

Technology Stack

12 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMicrosoft Clarity

Advertising

2
Google AdsGoogle AdSense

Frameworks

1
Angular

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginxv1.16.1

SEO Analysis

A84/100
25
5
0
Meta Tags15/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile1/4
Indexability3/3
V
voh.com.vnvoh.com.vn

VOH - Đài Tiếng nói Nhân dân Thành phố Hồ Chí Minh

Trang nghe radio online, xem tin tức thời sự trong và ngoài nước về chính trị xã hội, kinh tế, pháp luật, thể thao, giải trí, sức khỏe,..

Title Length50 chars

Recommended: 50-60 chars (~306px / 580px)

Description Length137 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    146 URLs

    robots.txt

    5 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    20/100
    Needs Work
    5 15

    Sponsored

    AI & LLM Readiness

    D57/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    10/25
    Citation
    17/25

    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:2%
    Words:3,667
    Token eff.:Good
    Sections/1K:4.6

    Structured Data

    2 JSON-LD
    Person×1.3Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary79w
    Descriptive Headingsavg 11.6w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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.
    B
    78/100
    11
    Passed
    1
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    10/15
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    44/100
    C
    197 mg
    CO₂e / view
    1.6 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    225 mg
    vs
    Returning (cached)
    112 mg
    Annual (10K/mo)
    23.6 kg
    Emission Segments
    Data Center
    44 mg
    Network
    47 mg
    Device
    105 mg
    Resource Breakdown
    JavaScript
    1015.2 KB
    Images
    291.5 KB
    CSS
    128.6 KB
    HTML
    122.1 KB
    Other
    31.1 KB
    Green Hosting Not Verified
    Viettel Group
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    46%Poor
    Interactive

    HTTPS

    No WAF

    96d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    11.08.2025

    Valid Until

    11.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.voh.com.vnvoh.com.vn

    SHA-256 Fingerprint

    42:76:79:E1:4F:C2:06:0A:10:B4:1B:2B:2E:EA:22:72:80:E1:28:47...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    access-control-allow-origin
    *
    age
    1
    cache-control
    🟡 60s(public, s-maxage=60, max-age=60, stale-while-revalidate=2)
    content-encoding
    📦 Gzip(gzip)
    content-length
    124744
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    70

    SPF
    DKIM
    DMARC

    MX Records (5)

    ALT2.ASPMX.L.GOOGLE.COM
    ALT1.ASPMX.L.GOOGLE.COM
    ALT3.ASPMX.L.GOOGLE.COM
    ALT4.ASPMX.L.GOOGLE.COM

    +1 more

    Domain Information

    voh.com.vn

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice

    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.
    C
    65/100
    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=1.0, user-scalable=yes
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    arial

    WCAG AA
    65/100
    Readability
    /30
    20/30

    16px · LH 1.80

    Hierarchy
    /20
    12/20

    1.75x ratio

    WCAG
    /25
    21/25

    4.89:1 min contrast

    Performance
    /25
    12/25

    System fonts

    Heading Font

    arial

    Sans28px

    Body Font

    arial

    Sans16px

    Contrast Ratio

    4.89:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~42 CPL

    Narrow lines
    28px
    h1
    28px
    h2
    24px
    h3
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.9:1).

    ❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

    ✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

    ⚠️ High font requests: 16 font files loaded. Consider variable fonts or subsetting.

    Flesch 59

    Color Palette

    12 unique colors
    Light
    #ffffff
    Background· 73.8%
    #f1e8e5
    Primary· 9%
    #000000
    Primary· 0%
    #d5904a
    Accent· 2.7%
    #232733
    Secondary· 2.5%
    #86aab9
    Secondary· 1.9%
    #080e19
    Accent· 1.7%
    #887568
    Secondary· 1.5%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    4

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseGoogle Ad Manager

    Sponsored

    Scripts & Styles

    22 Resources

    20
    Scripts
    2
    Styles
    9
    Async
    10
    Defer

    Top Script Sources

    local(10)googletagmanager.com(4)media1.admicro.vn(3)pagead2.googlesyndication.com(1)scripts.clarity.ms(1)

    Website Identity

    VOH

    VOH

    Organization

    Số 03 Nguyễn Đình Chiểu, phường Sài Gòn, Tp. Hồ Chí Minh, Việt Nam

    70000, Tp. Hồ Chí Minh, Việt Nam, Southeast

    Location detected: 🇻🇳 Vietnamvia tld
    📧 Google WorkspaceviEst. 2003

    Sponsored

    Last analyzed: 07 May 2026 at 13:27

    Historical Analysis & Change Tracking