chatluongvietnam.com

https://chatluongvietnam.com· First analyzed 17 May 2026· Updated 17 May 2026

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Mobile

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Hosting Provider

AZDIGI

IP Address

45.252.250.80

Site Location

🇻🇳 Vietnamvia ip

Server Location

🇻🇳 Bình Dương, Vietnam

ASN

AS63760

Organization

AZDIGI

Server

LiteSpeed

Nameservers

ns2.matbao.vn.ns-bak.matbao.com.ns1.matbao.vn.

Performance

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%

5.8 MB

92 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Astrav3.7.9

by Brainstorm Force

View Theme

Technology Stack

13 Technologies Detected

Plugins

Menu Icons Post Views Counter

Libraries

UI Components

Other

CSS Frameworks

Icon Libraries

Web Servers

Languages

SEO Analysis

A80/100

Meta Tags10/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T7/7

Images4/7

Links2/5

URL5/5

Social5/5

Freshness4/4

Mobile3/4

Indexability3/3

chatluongvietnam.comchatluongvietnam.com

VIỆN CHẤT LƯỢNG VIỆT NAM - VIỆN CHẤT LƯỢNG VIỆT NAM PHÙ HỢP TIÊU CHUẨN

QUẢNG CÁO THƯƠNG HIỆU DOANH NHÂN SẢN PHẨM - DỊCH VỤ TIN TỨC - SỰ KIỆN KHÁCH HÀNG TIÊU BIỂU

Title Length70 chars

Recommended: 50-60 chars (~434px / 580px)

Description Length90 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

9 issues found

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Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100

Poor

3 13 1

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

Sponsored

AI & LLM Readiness

C60/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

12/25

Citation

18/25

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:788

Token eff.:Optimal

Sections/1K:3.8

Depth:1/5

Structured Data

6 JSON-LD

Article×1.2Person×1.3Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary25w

Descriptive Headingsavg 10.7w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

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.

88/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

10/15

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

1 recommendation

•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.

29/100

733 mg

CO₂e / view

5.8 MB

Page Weight

Cleaner Than

New Visitor

838 mg

Returning (cached)

419 mg

Annual (10K/mo)

87.9 kg

Emission Segments

Data Center

164 mg

Network

176 mg

Device

393 mg

Resource Breakdown

JavaScript

163.3 KB

Images

5.3 MB

CSS

361.5 KB

HTML

25.6 KB

Green Hosting Not Verified

AZDIGI

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

85d

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

HTTP Protocol

HTTP/2+H3

Valid From

12.05.2026

Valid Until

10.08.2026

Subject Alternative Names (2)

chatluongvietnam.comwww.chatluongvietnam.com

SHA-256 Fingerprint

5E:10:2F:5F:28:95:67:0F:C5:93:7F:0B:D4:56:FF:11:32:98:4F:25...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Sun, 17 May 2026 00:03:49 GMT

etag

"1444410-1778976229;br"

link

<https://chatluongvietnam.com/wp-json/>; rel="https://api.w....

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.chatluongvietnam.com

Domain Information

chatluongvietnam.com

Domain Age

12y 12m

Created

24.05.2013

Expires

24.05.2027

Last Updated

11.05.2026

Registrar

MAT BAO CORPORATION

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.

81/100

Mobile Friendly62 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

Roboto

WCAG Partial

65/100

Readability

/30

22/30

14px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Roboto

Sans

Body Font

Roboto

Sans14px

Contrast Ratio

1:1

3 issues

Reading Comfort

~46 CPL

Optimal (45–75)

30px

18px

30px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

Flesch 0

Color Palette

13 unique colors

Light

#f1f1f1

Background· 18.900000000000002%

#0b314e

Primary· 9.2%

#abc4ca

Secondary· 7.5%

#de272b

Accent· 7.3%

#648d9e

Secondary· 7.3%

#c45c57

Secondary· 6.5%

#b69988

Secondary· 5.8%

#7d2432

Accent· 5.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

chatluongvietnam.com(15)

Website Identity

VIỆN CHẤT LƯỢNG VIỆT NAM PHÙ HỢP TIÊU CHUẨN

Person

QUẢNG CÁO THƯƠNG HIỆU DOANH NHÂN SẢN PHẨM - DỊCH VỤ TIN TỨC - SỰ KIỆN KHÁCH HÀNG TIÊU BIỂU

chatluongvietnam.com/author/mainadmin/

12 years old

Location detected: 🇻🇳 Vietnamvia ip

MAT BAO CORPORATIONvi

Social Profiles

Facebook

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Last analyzed: 17 May 2026 at 00:04

Historical Analysis & Change Tracking