StackOptic
Back to Search
esc.vn favicon

esc.vn

https://esc.vn· First analyzed 26 Apr 2026· Updated 26 Apr 2026
Export
esc.vn
Desktop screenshot of esc.vn
Mobile screenshot of esc.vn
Mobile

Sponsored

Hosting Provider

Viettel - CHT Company Ltd

IP Address

210.211.108.157

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Go Vap, Vietnam

ASN

AS38731

Organization

Viettel - CHT Company Ltd

Server

Apache

Nameservers

ns2.esc.vn.ns1.esc.vn.ns3.esc.vn.

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%
2.1 MB
250 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Portov7.8.5Custom
by P-THEMES
View Theme

Technology Stack

49 Technologies Detected

Plugins

30
Woo Product Bundle
Header Footer Elementor
Jetpack
Knowledgebase Helpdesk
Yith Woocommerce Ajax Navigation
Woocustomizer
Contact Form 7
Support ChatThe Post GridTier Pricing TableAi Engine Pro
Elementor
Woocommerce Product Addon
Elementor
Wp Popups Lite
Yith Woocommerce Frequently Bought Together
TablePress
Elementor
Ajax Load More AnythingPorto Functionality
WooCommerce
Gtranslate
Woocommerce Paypal Payments
Slide AnythingRevslider
Wp Smush Pro
PixelyoursiteGoogle Site Kit
Yoast SEO
Gutenberg

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMicrosoft Clarity

Libraries

3
jQueryv3.7.1
jQuery UI
Animate.css

UI Components

2
SwiperOwl Carousel

CSS Frameworks

2
Bootstrap
Tailwind CSS

Frameworks

1
React

Other

1
Lottie

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

A+90/100
27
5
0
Meta Tags15/15
Content10/12
Headings6/8
Technical24/25
E-E-A-T5/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
E
esc.vnesc.vn

ESC.VN - Dịch vụ hosting, domain, VPS uy tín giá tốt nhất

Đăng ký tên miền, hosting tốc độ cao với giá tốt nhất. Uptime 99.9%, hỗ trợ 24/7. Đảm bảo hiệu suất tối ưu cho doanh nghiệp của bạn!

Title Length57 chars

Recommended: 50-60 chars (~343px / 580px)

Description Length132 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    17 URLs

    17 sub-sitemaps

    robots.txt

    9 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    27/100
    Needs Work
    8 10

    Sponsored

    AI & LLM Readiness

    D52/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    8/25
    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:2,489
    Token eff.:Optimal

    Structured Data

    5 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 5w
    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.
    B
    72/100
    10
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    14/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    9/15
    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.
    36/100
    D
    270 mg
    CO₂e / view
    2.1 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    309 mg
    vs
    Returning (cached)
    154 mg
    Annual (10K/mo)
    32.4 kg
    Emission Segments
    Data Center
    60 mg
    Network
    65 mg
    Device
    145 mg
    Resource Breakdown
    JavaScript
    907.9 KB
    Images
    326.5 KB
    CSS
    874.4 KB
    Fonts
    2.4 KB
    HTML
    71.5 KB
    Other
    1.3 KB
    Green Hosting Not Verified
    Viettel - CHT Company Ltd
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    51%Poor
    Interactive

    HTTPS

    No WAF

    260d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    12.12.2025

    Valid Until

    11.01.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.esc.vnesc.vn

    SHA-256 Fingerprint

    58:36:8B:1B:71:8D:30:72:62:1F:CA:96:62:B0:13:F9:B5:AA:BD:8A...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-security-policy-report-only
    frame-ancestors 'self';img-src 'self' data: https://pixel.wp...
    content-type
    text/html; charset=UTF-8
    date
    Sun, 26 Apr 2026 15:11:22 GMT
    link
    <https://esc.vn/wp-json/>; rel="https://api.w.org/", <https:...
    referrer-policy
    strict-origin-when-cross-origin
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (5)

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

    +1 more

    Domain Information

    esc.vn

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    Data Protection Officer mentioned

    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
    76/100
    Mobile Friendly10 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, minimum-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Arial

    WCAG Partial
    72/100
    Readability
    /30
    25/30

    16px · LH 1.50

    Hierarchy
    /20
    16/20

    3.44x ratio · ✓ H1→H6

    WCAG
    /25
    13/25

    3.13:1 min contrast

    Performance
    /25
    18/25

    System fonts

    Heading Font

    Arial

    Sans55px

    Body Font

    Arial

    Sans16px

    Contrast Ratio

    3.13:1

    21 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    55px
    h1
    30px
    h2
    30px
    h3
    20px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

    ⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 3.1:1).

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

    ✅ Strong hierarchy: Headlines are 3.4x larger than body text.

    GGoogle FontsFlesch 100

    Color Palette

    13 unique colors
    Light
    #ffffff
    Background· 28.5%
    #adaaf0
    Accent· 9.7%
    #bad8fc
    Accent· 9%
    #b9edfe
    Accent· 8.5%
    #dd262a
    Accent· 8.2%
    #0c2de9
    Accent· 8%
    #0c4bb0
    Primary· 6.2%
    #c8bfea
    Accent· 5.4%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    4

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    7
    Async
    1
    Defer

    Top Script Sources

    esc.vn(13)googletagmanager.com(3)connect.facebook.net(2)scripts.clarity.ms(1)clarity.ms(1)

    Website Identity

    Công ty TNHH Giải pháp trực tuyến (ESC)

    Công ty TNHH Giải pháp trực tuyến (ESC)

    Organization

    Đăng ký tên miền, hosting tốc độ cao với giá tốt nhất. Uptime 99.9%, hỗ trợ 24/7. Đảm bảo hiệu suất tối ưu cho doanh nghiệp của bạn!

    19002069
    esc.vn/
    Location detected: 🇻🇳 Vietnamvia tld
    📧 Google Workspacevi

    Sponsored

    Last analyzed: 26 Apr 2026 at 15:13

    Historical Analysis & Change Tracking