cvt.vn

https://cvt.vn· First analyzed 21 May 2026· Updated 21 May 2026

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cvt.vn

Mobile

Sponsored

Hosting Provider

LUUTRUSO

IP Address

103.255.237.233

Site Location

🇻🇳 Vietnamvia tld

Server Location

🇻🇳 Ho Chi Minh City, Vietnam

ASN

AS45899

Organization

LUUTRUSO

Server

OpenResty

Nameservers

ns2.pavietnam.vn.nsbak.pavietnam.net.ns1.pavietnam.vn.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.9 MB

94 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Imprezav8.40.1Custom

by UpSolution

View Theme

Technology Stack

12 Technologies Detected

Plugins

Post Views Counter

WooCommerce

Interactive Image Map Builder

Libraries

jQueryv3.7.1

jQuery UI

Icon Libraries

Font Awesome Material Icons

UI Components

CSS Frameworks

Fonts

Analytics

Web Servers

SEO Analysis

C64/100

Meta Tags9/15

Content8/12

Headings3/8

Technical21/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

cvt.vncvt.vn

CVT Home

Tư vấn & lắp đặt nhà thông minh: khóa cửa, camera AI, chiếu sáng, rèm cửa, cửa cuốn, âm thanh đa vùng, tưới sân vườn, mạng WiFi. Bảo hành chính hãng.

Title Length8 chars

Recommended: 50-60 chars (~52px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (160/160) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

9 rules

Sitemap reference found

Local SEO

Local Search Readiness

16/100

Poor

4 12 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.

10/25

Schema Data

0/25

Citation

15/25

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

nav

Text ratio:2%

Words:1,083

Token eff.:Optimal

Depth:1/5

Structured Data

Microdata

Citation Readiness

Opening Summary37w

Descriptive Headingsavg 8.2w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

78/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

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

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

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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.

21/100

743 mg

CO₂e / view

5.9 MB

Page Weight

Cleaner Than

New Visitor

850 mg

Returning (cached)

425 mg

Annual (10K/mo)

89.2 kg

Emission Segments

Data Center

166 mg

Network

178 mg

Device

399 mg

Resource Breakdown

JavaScript

194.9 KB

Images

4.6 MB

CSS

1.0 MB

Fonts

779 B

HTML

29.4 KB

Green Hosting Not Verified

LUUTRUSO

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

148d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

16.10.2025

Valid Until

16.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

cvt.vn

SHA-256 Fingerprint

4C:E1:EA:6F:1F:A5:32:EE:53:C9:EE:F1:6F:C8:12:03:A4:39:2F:CA...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 00:56:31 GMT

link

<https://cvt.vn/wp-json/>; rel="https://api.w.org/", <https:...

server

openresty

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.cvt.vn

Domain Information

cvt.vn

DNSSEC

Not Enabled

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.

76/100

Mobile Friendly34 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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Lexend

WCAG Partial

66/100

Readability

/30

23/30

17px · LH 1.76

Hierarchy

/20

7/20

WCAG

/25

18/25

4.11:1 min contrast

Performance

/25

18/25

1 font · 3 req

Heading Font

Lexend

Sans

Body Font

Lexend

Sans17px

Contrast Ratio

4.11:1

2 issues

Reading Comfort

~35 CPL

Narrow lines

22px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Easy to read: Flesch score 99/100 — accessible to general audiences.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 4.1:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFluid TypeFlesch 99

Color Palette

11 unique colors

4.68:1 AA Light

#ffffff

Background· 46.5%

#757565

Other· 4.4%

#bbccec

Primary· 6.4%

#abbbd9

Secondary· 4.9%

#322e26

Secondary· 4.9%

#dad3d1

Secondary· 4.6%

#523e36

Secondary· 4.3%

#5b5245

Secondary· 4.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cvt.vn(15)cdnjs.cloudflare.com(1)

Website Identity

cvt.vn

090 900 80 08

Location detected: 🇻🇳 Vietnamvia tld

Social Profiles

Facebook TikTok

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Last analyzed: 21 May 2026 at 00:57

Historical Analysis & Change Tracking